Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

Andrew,

It will be interesting to see what they would say. My ML350 BT is covered by an 
extended warranty due pollution control settlement agreed upon by the EPA and 
Justice Dept . Any Bluetec diesel from 2009-2016 (OM 642 & OM 651) models are 
covered by the extended warranty, link to the warranty document is below. My ML 
350 had the pollution control updates completed just last December. So all the 
pollution control equipment will be covered for (4) years or 48,000 miles, 
whichever occurs first. It was interesting, I went back and reviewed the CARFAX 
report and there was now mention of the pollution control update when it was 
serviced at a Mercedes dealer in Kentucky just before it was put up for sale by 
Jeff Wyler outside Cincinnati.

It should be interesting to see, if I can get reimbursed for the CCV valve ( 
$160 item ) that I am replacing during my oil cooler leak fix, it is the last 
item in the list that is covered by the extended warranty. 

warranty-extension-covered-components.pdf (mbusa.com)



Bob Massmann

2012 ML350 BT


From: Andrew Strasfogel 
Sent: Wednesday, February 23, 2022 12:20 PM
To: Mercedes Discussion List 
Cc: Robert Massmann 
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Might want to share this info with MBNA.


On Wed, Feb 23, 2022 at 12:08 PM Robert Massmann via Mercedes 
 wrote:

  Photos of the soot that was collected from my 2012 ML. I would guess that 
  the crankcase vent was not performing very well making the soot very sticky. 
  First photo is what was collected from the left intake manifold, air/EGR 
  mixer box after throttle body, and then the right intake manifold. Just for 
  grins I combined and weighted the material, 1.5 oz short of a full lb. I 
  will be replacing the PVC assembly when I start putting things back 
  together.

  Regards,

  Bob Massmann
  2012 ML350 BT

  -Original Message- 
  From: Robert Massmann via Mercedes
  Sent: Friday, February 18, 2022 1:03 PM
  To: Mercedes Discussion List
  Cc: rmassm...@embarqmail.com
  Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

  Here are more photos of repair progress. I am currently in the cleaning
  process oil and soot buildup in the air intakes and mixer assembly after the
  intercooler. This is a very messy part of the job!

  Bob Massmann
  2012 ML 350 BT

  -Original Message- 
  From: dan penoff.com via Mercedes
  Sent: Wednesday, February 16, 2022 3:49 PM
  To: Okie Benz
  Cc: dan penoff.com
  Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

  Makes me glad I have older, simpler cars.

  -D

  > On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes
  >  wrote:
  >
  > This of the engine bay of my ML. Lots of stuff. Things that need to be
  > removed to get at the buried oil cooler.
  >
  > 1) left and right air filters
  > 2) engine bay shielding
  > 3) intake plenum with mass flow sensors
  > 4) tube from turbo to intercooler
  > 5) air intake mixing chamber assembly
  > 6) fuel filter
  > 7) fuel interconnection tube
  > 8) turbo
  > 9) Turbo rizer
  > 10) EGR flap servo
  > 11) Right intake manifold
  > 12) left intake manifold ( I was thinking of trying to leave it alone, but
  > it may need to be cleaned as well )
  >
  > With all that the oil cooler should be accessible?
  >
  > Not sure if I missed anything. I am just on step 8 currently, I have one
  > more screw to remove.
  >
  > -Original Message- From: Floyd Thursby via Mercedes
  > Sent: Tuesday, February 15, 2022 4:09 PM
  > To: mercedes@okiebenz.com
  > Cc: Floyd Thursby
  > Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
  >
  > My $500 99E300 had a completely buggered up intake manifold and jammed
  > EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
  > a fairly easy job on that car though.
  >
  > --FT
  >
  > On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
  >> More an effect of emissions controls. In particular EGR. EGR reduces NOX
  >> emissions in diesels, but it makes a mess of the intake manifold. In
  >> manifolds with movable flaps, things get "interesting".
  >
  > To Unsubscribe or change delivery options go to:
  > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
  > ___
  > http://www.okiebenz.com
  >
  > To search list archives http://www.okiebenz.com/archive/
  >
  > To Unsubscribe or change delivery options go to:
  > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
  >


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  _

Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Andrew Strasfogel via Mercedes]

Might want to share this info with MBNA.

On Wed, Feb 23, 2022 at 12:08 PM Robert Massmann via Mercedes <
mercedes@okiebenz.com> wrote:

> Photos of the soot that was collected from my 2012 ML. I would guess that
> the crankcase vent was not performing very well making the soot very
> sticky.
> First photo is what was collected from the left intake manifold, air/EGR
> mixer box after throttle body, and then the right intake manifold. Just
> for
> grins I combined and weighted the material, 1.5 oz short of a full lb. I
> will be replacing the PVC assembly when I start putting things back
> together.
>
> Regards,
>
> Bob Massmann
> 2012 ML350 BT
>
> -Original Message-
> From: Robert Massmann via Mercedes
> Sent: Friday, February 18, 2022 1:03 PM
> To: Mercedes Discussion List
> Cc: rmassm...@embarqmail.com
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
>
> Here are more photos of repair progress. I am currently in the cleaning
> process oil and soot buildup in the air intakes and mixer assembly after
> the
> intercooler. This is a very messy part of the job!
>
> Bob Massmann
> 2012 ML 350 BT
>
> -Original Message-
> From: dan penoff.com via Mercedes
> Sent: Wednesday, February 16, 2022 3:49 PM
> To: Okie Benz
> Cc: dan penoff.com
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
>
> Makes me glad I have older, simpler cars.
>
> -D
>
> > On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes
> >  wrote:
> >
> > This of the engine bay of my ML. Lots of stuff. Things that need to be
> > removed to get at the buried oil cooler.
> >
> > 1) left and right air filters
> > 2) engine bay shielding
> > 3) intake plenum with mass flow sensors
> > 4) tube from turbo to intercooler
> > 5) air intake mixing chamber assembly
> > 6) fuel filter
> > 7) fuel interconnection tube
> > 8) turbo
> > 9) Turbo rizer
> > 10) EGR flap servo
> > 11) Right intake manifold
> > 12) left intake manifold ( I was thinking of trying to leave it alone,
> but
> > it may need to be cleaned as well )
> >
> > With all that the oil cooler should be accessible?
> >
> > Not sure if I missed anything. I am just on step 8 currently, I have one
> > more screw to remove.
> >
> > -Original Message- From: Floyd Thursby via Mercedes
> > Sent: Tuesday, February 15, 2022 4:09 PM
> > To: mercedes@okiebenz.com
> > Cc: Floyd Thursby
> > Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
> >
> > My $500 99E300 had a completely buggered up intake manifold and jammed
> > EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
> > a fairly easy job on that car though.
> >
> > --FT
> >
> > On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
> >> More an effect of emissions controls. In particular EGR. EGR reduces NOX
> >> emissions in diesels, but it makes a mess of the intake manifold. In
> >> manifolds with movable flaps, things get "interesting".
> >
> > To Unsubscribe or change delivery options go to:
> > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> > ___
> > http://www.okiebenz.com
> >
> > To search list archives http://www.okiebenz.com/archive/
> >
> > To Unsubscribe or change delivery options go to:
> > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >
>
>
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>
> To Unsubscribe or change delivery options go to:
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>
>
>
>
>
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

BSME, working as a machine tool designer and spindle design engineer for a 
major machine tool company in the Cincinnati area. Have always loved 
mechanical things and trying to figure out how they work and are put 
together. Happily retired in 2020 after 43 years in the industry.


Bob Massmann
ML350 BT

-Original Message- 
From: Curt Raymond

Sent: Saturday, February 19, 2022 10:42 AM
To: Mercedes Discussion List
Cc: rmassm...@embarqmail.com
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Solid work. I'm always impressed when a home gamer takes on one of these big 
jobs.


-Curt



On Saturday, February 19, 2022, 09:37:56 AM EST, Robert Massmann via 
Mercedes  wrote:


Well I have finally gotten to the oil cooler on my ML. Didn't break
anything, but only had trouble with one screw. It was part of the exhaust
fasteners and are one time use and need to be replaced. Currently before
removing the oil cooler I will cover the turbo stand position and clean all
the soot from the intake ports. I will be trying to clean intake manifolds
as well as the EGR assembly at the front of the engine after the
intercooler. The mixture of oil from the PCV valve and exhaust is a very
messy mix. Once the cleaning is complete, I will start putting things back
together. I have tried to put as many of the fasteners as I can back into
the same holes so I have them in their correct location.

Bob Massmann
ML350 BT

-Original Message- 
From: Buggered Benzmail via Mercedes

Sent: Friday, February 18, 2022 1:24 PM
To: Mercedes Discussion List
Cc: Buggered Benzmail
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Seriously ouch

--FT
Sent from iFōn


On Feb 18, 2022, at 12:50 PM, Robert Massmann via Mercedes
 wrote:

Mercedes Dealer gave me a quote of $3600 to complete the repair, ouch!

Bob Massmann

-Original Message- From: dan penoff.com via Mercedes
Sent: Wednesday, February 16, 2022 3:49 PM
To: Okie Benz
Cc: dan penoff.com
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Makes me glad I have older, simpler cars.

-D


On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes
 wrote:

This of the engine bay of my ML. Lots of stuff. Things that need to be
removed to get at the buried oil cooler.

1) left and right air filters
2) engine bay shielding
3) intake plenum with mass flow sensors
4) tube from turbo to intercooler
5) air intake mixing chamber assembly
6) fuel filter
7) fuel interconnection tube
8) turbo
9) Turbo rizer
10) EGR flap servo
11) Right intake manifold
12) left intake manifold ( I was thinking of trying to leave it alone,
but it may need to be cleaned as well )

With all that the oil cooler should be accessible?

Not sure if I missed anything. I am just on step 8 currently, I have one
more screw to remove.

-Original Message- From: Floyd Thursby via Mercedes
Sent: Tuesday, February 15, 2022 4:09 PM
To: mercedes@okiebenz.com
Cc: Floyd Thursby
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

My $500 99E300 had a completely buggered up intake manifold and jammed
EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
a fairly easy job on that car though.

--FT


On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
More an effect of emissions controls. In particular EGR. EGR reduces NOX
emissions in diesels, but it makes a mess of the intake manifold. In
manifolds with movable flaps, things get "interesting".


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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Curt Raymond via Mercedes]

Solid work. I'm always impressed when a home gamer takes on one of these big 
jobs.

-Curt



 On Saturday, February 19, 2022, 09:37:56 AM EST, Robert Massmann via Mercedes 
 wrote: 

Well I have finally gotten to the oil cooler on my ML. Didn't break 
anything, but only had trouble with one screw. It was part of the exhaust 
fasteners and are one time use and need to be replaced. Currently before 
removing the oil cooler I will cover the turbo stand position and clean all 
the soot from the intake ports. I will be trying to clean intake manifolds 
as well as the EGR assembly at the front of the engine after the 
intercooler. The mixture of oil from the PCV valve and exhaust is a very 
messy mix. Once the cleaning is complete, I will start putting things back 
together. I have tried to put as many of the fasteners as I can back into 
the same holes so I have them in their correct location.

Bob Massmann
ML350 BT

-Original Message- 
From: Buggered Benzmail via Mercedes
Sent: Friday, February 18, 2022 1:24 PM
To: Mercedes Discussion List
Cc: Buggered Benzmail
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Seriously ouch

--FT
Sent from iFōn

> On Feb 18, 2022, at 12:50 PM, Robert Massmann via Mercedes 
>  wrote:
>
> Mercedes Dealer gave me a quote of $3600 to complete the repair, ouch!
>
> Bob Massmann
>
> -Original Message- From: dan penoff.com via Mercedes
> Sent: Wednesday, February 16, 2022 3:49 PM
> To: Okie Benz
> Cc: dan penoff.com
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
>
> Makes me glad I have older, simpler cars.
>
> -D
>
>> On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes 
>>  wrote:
>>
>> This of the engine bay of my ML. Lots of stuff. Things that need to be 
>> removed to get at the buried oil cooler.
>>
>> 1) left and right air filters
>> 2) engine bay shielding
>> 3) intake plenum with mass flow sensors
>> 4) tube from turbo to intercooler
>> 5) air intake mixing chamber assembly
>> 6) fuel filter
>> 7) fuel interconnection tube
>> 8) turbo
>> 9) Turbo rizer
>> 10) EGR flap servo
>> 11) Right intake manifold
>> 12) left intake manifold ( I was thinking of trying to leave it alone, 
>> but it may need to be cleaned as well )
>>
>> With all that the oil cooler should be accessible?
>>
>> Not sure if I missed anything. I am just on step 8 currently, I have one 
>> more screw to remove.
>>
>> -----Original Message- From: Floyd Thursby via Mercedes
>> Sent: Tuesday, February 15, 2022 4:09 PM
>> To: mercedes@okiebenz.com
>> Cc: Floyd Thursby
>> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
>>
>> My $500 99E300 had a completely buggered up intake manifold and jammed
>> EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
>> a fairly easy job on that car though.
>>
>> --FT
>>
>>> On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
>>> More an effect of emissions controls. In particular EGR. EGR reduces NOX 
>>> emissions in diesels, but it makes a mess of the intake manifold. In 
>>> manifolds with movable flaps, things get "interesting".
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>> ___
>> http://www.okiebenz.com
>>
>> To search list archives http://www.okiebenz.com/archive/
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>
>
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Rick Knoble via Mercedes]

Very impressive.
Attaboy and way to go!


Rick

From: mercedes@okiebenz.com
Sent: February 19, 2022 8:38 AM
To: mercedes@okiebenz.com
Reply-to: mercedes@okiebenz.com
Cc: rmassm...@embarqmail.com
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Well I have finally gotten to the oil cooler on my ML. Didn't break
anything, but only had trouble with one screw. It was part of the exhaust
fasteners and are one time use and need to be replaced. Currently before
removing the oil cooler I will cover the turbo stand position and clean all
the soot from the intake ports. I will be trying to clean intake manifolds
as well as the EGR assembly at the front of the engine after the
intercooler. The mixture of oil from the PCV valve and exhaust is a very
messy mix. Once the cleaning is complete, I will start putting things back
together. I have tried to put as many of the fasteners as I can back into
the same holes so I have them in their correct location.

Bob Massmann
ML350 BT

-Original Message-
From: Buggered Benzmail via Mercedes
Sent: Friday, February 18, 2022 1:24 PM
To: Mercedes Discussion List
Cc: Buggered Benzmail
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Seriously ouch

--FT
Sent from iFōn

> On Feb 18, 2022, at 12:50 PM, Robert Massmann via Mercedes
>  wrote:
>
> Mercedes Dealer gave me a quote of $3600 to complete the repair, ouch!
>
> Bob Massmann
>
> -Original Message- From: dan penoff.com via Mercedes
> Sent: Wednesday, February 16, 2022 3:49 PM
> To: Okie Benz
> Cc: dan penoff.com
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
>
> Makes me glad I have older, simpler cars.
>
> -D
>
>> On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes
>>  wrote:
>>
>> This of the engine bay of my ML. Lots of stuff. Things that need to be
>> removed to get at the buried oil cooler.
>>
>> 1) left and right air filters
>> 2) engine bay shielding
>> 3) intake plenum with mass flow sensors
>> 4) tube from turbo to intercooler
>> 5) air intake mixing chamber assembly
>> 6) fuel filter
>> 7) fuel interconnection tube
>> 8) turbo
>> 9) Turbo rizer
>> 10) EGR flap servo
>> 11) Right intake manifold
>> 12) left intake manifold ( I was thinking of trying to leave it alone,
>> but it may need to be cleaned as well )
>>
>> With all that the oil cooler should be accessible?
>>
>> Not sure if I missed anything. I am just on step 8 currently, I have one
>> more screw to remove.
>>
>> -Original Message- From: Floyd Thursby via Mercedes
>> Sent: Tuesday, February 15, 2022 4:09 PM
>> To: mercedes@okiebenz.com
>> Cc: Floyd Thursby
>> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
>>
>> My $500 99E300 had a completely buggered up intake manifold and jammed
>> EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
>> a fairly easy job on that car though.
>>
>> --FT
>>
>>> On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
>>> More an effect of emissions controls. In particular EGR. EGR reduces NOX
>>> emissions in diesels, but it makes a mess of the intake manifold. In
>>> manifolds with movable flaps, things get "interesting".
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>> ___
>> http://www.okiebenz.com
>>
>> To search list archives http://www.okiebenz.com/archive/
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>
>
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Buggered Benzmail via Mercedes]

Seriously ouch

--FT
Sent from iFōn

> On Feb 18, 2022, at 12:50 PM, Robert Massmann via Mercedes 
>  wrote:
> 
> Mercedes Dealer gave me a quote of $3600 to complete the repair, ouch!
> 
> Bob Massmann
> 
> -Original Message- From: dan penoff.com via Mercedes
> Sent: Wednesday, February 16, 2022 3:49 PM
> To: Okie Benz
> Cc: dan penoff.com
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
> 
> Makes me glad I have older, simpler cars.
> 
> -D
> 
>> On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes 
>>  wrote:
>> 
>> This of the engine bay of my ML. Lots of stuff. Things that need to be 
>> removed to get at the buried oil cooler.
>> 
>> 1) left and right air filters
>> 2) engine bay shielding
>> 3) intake plenum with mass flow sensors
>> 4) tube from turbo to intercooler
>> 5) air intake mixing chamber assembly
>> 6) fuel filter
>> 7) fuel interconnection tube
>> 8) turbo
>> 9) Turbo rizer
>> 10) EGR flap servo
>> 11) Right intake manifold
>> 12) left intake manifold ( I was thinking of trying to leave it alone, but 
>> it may need to be cleaned as well )
>> 
>> With all that the oil cooler should be accessible?
>> 
>> Not sure if I missed anything. I am just on step 8 currently, I have one 
>> more screw to remove.
>> 
>> -Original Message- From: Floyd Thursby via Mercedes
>> Sent: Tuesday, February 15, 2022 4:09 PM
>> To: mercedes@okiebenz.com
>> Cc: Floyd Thursby
>> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
>> 
>> My $500 99E300 had a completely buggered up intake manifold and jammed
>> EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
>> a fairly easy job on that car though.
>> 
>> --FT
>> 
>>> On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
>>> More an effect of emissions controls. In particular EGR. EGR reduces NOX 
>>> emissions in diesels, but it makes a mess of the intake manifold. In 
>>> manifolds with movable flaps, things get "interesting".
>> 
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

Mercedes Dealer gave me a quote of $3600 to complete the repair, ouch!

Bob Massmann

-Original Message- 
From: dan penoff.com via Mercedes

Sent: Wednesday, February 16, 2022 3:49 PM
To: Okie Benz
Cc: dan penoff.com
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Makes me glad I have older, simpler cars.

-D

On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes 
 wrote:


This of the engine bay of my ML. Lots of stuff. Things that need to be 
removed to get at the buried oil cooler.


1) left and right air filters
2) engine bay shielding
3) intake plenum with mass flow sensors
4) tube from turbo to intercooler
5) air intake mixing chamber assembly
6) fuel filter
7) fuel interconnection tube
8) turbo
9) Turbo rizer
10) EGR flap servo
11) Right intake manifold
12) left intake manifold ( I was thinking of trying to leave it alone, but 
it may need to be cleaned as well )


With all that the oil cooler should be accessible?

Not sure if I missed anything. I am just on step 8 currently, I have one 
more screw to remove.


-Original Message- From: Floyd Thursby via Mercedes
Sent: Tuesday, February 15, 2022 4:09 PM
To: mercedes@okiebenz.com
Cc: Floyd Thursby
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

My $500 99E300 had a completely buggered up intake manifold and jammed
EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
a fairly easy job on that car though.

--FT

On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
More an effect of emissions controls. In particular EGR. EGR reduces NOX 
emissions in diesels, but it makes a mess of the intake manifold. In 
manifolds with movable flaps, things get "interesting".


To Unsubscribe or change delivery options go to:
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[dan penoff.com via Mercedes]

Makes me glad I have older, simpler cars.

-D

> On Feb 16, 2022, at 2:31 PM, Robert Massmann via Mercedes 
>  wrote:
> 
> This of the engine bay of my ML. Lots of stuff. Things that need to be 
> removed to get at the buried oil cooler.
> 
> 1) left and right air filters
> 2) engine bay shielding
> 3) intake plenum with mass flow sensors
> 4) tube from turbo to intercooler
> 5) air intake mixing chamber assembly
> 6) fuel filter
> 7) fuel interconnection tube
> 8) turbo
> 9) Turbo rizer
> 10) EGR flap servo
> 11) Right intake manifold
> 12) left intake manifold ( I was thinking of trying to leave it alone, but it 
> may need to be cleaned as well )
> 
> With all that the oil cooler should be accessible?
> 
> Not sure if I missed anything. I am just on step 8 currently, I have one more 
> screw to remove.
> 
> -Original Message- From: Floyd Thursby via Mercedes
> Sent: Tuesday, February 15, 2022 4:09 PM
> To: mercedes@okiebenz.com
> Cc: Floyd Thursby
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
> 
> My $500 99E300 had a completely buggered up intake manifold and jammed
> EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was
> a fairly easy job on that car though.
> 
> --FT
> 
> On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:
>> More an effect of emissions controls. In particular EGR. EGR reduces NOX 
>> emissions in diesels, but it makes a mess of the intake manifold. In 
>> manifolds with movable flaps, things get "interesting".
> 
> To Unsubscribe or change delivery options go to:
> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
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> 
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> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> 


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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Buggered Benzmail via Mercedes]

I watched these vids of a guy using seafoam to clean cylinders and intakes of 
burned on crap, it takes awhile and gets some of it but you probably have too 
much there. Can you get a wire brush on drill extension in there to scrub it 
out after spraying with solvent?  I did that on the E300 and got a lot out. 

--FT
Sent from iFōn

> On Feb 16, 2022, at 10:35 AM, Curt Raymond via Mercedes 
>  wrote:
> 
> That's how all the VW guys do it, get the carbon burning and just let the 
> oxygen do the job. Doing it that way I don't think will warp it, the engine 
> bay is a pretty hot place.
> 
> -Curt
> 
> 
> 
> On Wednesday, February 16, 2022, 10:22:54 AM EST, Robert Massmann via 
> Mercedes  wrote: 
> 
> 
> I believe I will being doing a lot of cleaning before things start going 
> back together. I have seen, U tube videos of them burning the soot out of 
> the intake manifolds, but fear that may warp things very badly. I will had 
> scrap with solvents to try and clear it.
> 
> Bob Massmann
> 
> -Original Message- 
> From: Rick Knoble via Mercedes
> Sent: Tuesday, February 15, 2022 2:46 PM
> To: Mercedes Discussion List
> Cc: Rick Knoble
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
> 
> More an effect of emissions controls. In particular EGR. EGR reduces NOX 
> emissions in diesels, but it makes a mess of the intake manifold. In 
> manifolds with movable flaps, things get "interesting".
> 
> 
> Rick
> 
> From: mercedes@okiebenz.com
> Sent: February 15, 2022 10:31 AM
> To: mercedes@okiebenz.com
> Reply-to: mercedes@okiebenz.com
> Cc: rbenn...@bennell.ca
> Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )
> 
> Is the soot the result of not driving it hard enough? Short trips, in
> town etc.
> 
> Randy
> 
> 
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Curt Raymond via Mercedes]

That's how all the VW guys do it, get the carbon burning and just let the 
oxygen do the job. Doing it that way I don't think will warp it, the engine bay 
is a pretty hot place.

-Curt



On Wednesday, February 16, 2022, 10:22:54 AM EST, Robert Massmann via Mercedes 
 wrote: 


I believe I will being doing a lot of cleaning before things start going 
back together. I have seen, U tube videos of them burning the soot out of 
the intake manifolds, but fear that may warp things very badly. I will had 
scrap with solvents to try and clear it.

Bob Massmann

-Original Message- 
From: Rick Knoble via Mercedes
Sent: Tuesday, February 15, 2022 2:46 PM
To: Mercedes Discussion List
Cc: Rick Knoble
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

More an effect of emissions controls. In particular EGR. EGR reduces NOX 
emissions in diesels, but it makes a mess of the intake manifold. In 
manifolds with movable flaps, things get "interesting".


Rick

From: mercedes@okiebenz.com
Sent: February 15, 2022 10:31 AM
To: mercedes@okiebenz.com
Reply-to: mercedes@okiebenz.com
Cc: rbenn...@bennell.ca
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Is the soot the result of not driving it hard enough? Short trips, in
town etc.

Randy


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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

I have used an extension to my ratchet on several of the bolts, but they 
were all at the turbo to exhaust connection.


Bob Massmann

-Original Message- 
From: Rick Knoble via Mercedes

Sent: Tuesday, February 15, 2022 3:24 PM
To: Mercedes Discussion List
Cc: Rick Knoble
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Strong work!


Rick

From: mercedes@okiebenz.com
Sent: February 15, 2022 10:15 AM
To: mercedes@okiebenz.com
Reply-to: mercedes@okiebenz.com
Cc: rmassm...@embarqmail.com
Subject: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Well all I am in the process of trying to change the seals on my Ml 350 BT. 
I am getting a good feel for why this is such and expensive repair job with 
limited access and the number of parts that need to be removed. In the 
process I have had to remove the air control assembly that delivers the 
intercooled air to the intake manifold. There is a larger amount of soot 
buildup the second photo came from the inlet of the intake manifold that I 
could reach and haven’t touched the assembly that is shown in photo 1. I did 
see some oil in the inlet to the turbo intake side as well as the transferee 
tube to the intercooler. May just replace crankcase ventilation valve while 
I have things apart. The exterior of this valve is quite oily. Car has about 
87K miles on it. I have three more screws to remove before I can remove the 
turbo, one of which I can not see.


Will try and give an update in a day or two.

Bob Massmann
2012 ML350 BT 87K
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

I believe I will being doing a lot of cleaning before things start going 
back together. I have seen, U tube videos of them burning the soot out of 
the intake manifolds, but fear that may warp things very badly. I will had 
scrap with solvents to try and clear it.


Bob Massmann

-Original Message- 
From: Rick Knoble via Mercedes

Sent: Tuesday, February 15, 2022 2:46 PM
To: Mercedes Discussion List
Cc: Rick Knoble
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

More an effect of emissions controls. In particular EGR. EGR reduces NOX 
emissions in diesels, but it makes a mess of the intake manifold. In 
manifolds with movable flaps, things get "interesting".



Rick

From: mercedes@okiebenz.com
Sent: February 15, 2022 10:31 AM
To: mercedes@okiebenz.com
Reply-to: mercedes@okiebenz.com
Cc: rbenn...@bennell.ca
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Is the soot the result of not driving it hard enough? Short trips, in
town etc.

Randy


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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

I have working on it for about 4 days and may spend 4-5 hours each day. 
Spent about 2 hours to get one exhaust to manifold bolts out. I believe the 
tip threads were rusted being exposed to nature, slowly worked it out 
without braking it. Have one more screw before I can lift the turbo out. But 
need to buy an extended Torx to get to it.  The only place this soot or what 
ever it is, is coming fro the crankcase vent valve EGR system. I guess it is 
a mixture?


I think I should replace it ( PCV ) valve assembly?

Bob Massmann

-Original Message- 
From: Kaleb Striplin via Mercedes

Sent: Tuesday, February 15, 2022 12:51 PM
To: Mercedes Discussion List
Cc: Kaleb Striplin
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

The wife’s R320 has been sitting for 2 years waiting on me to work up the 
nerve to do this job.


Sent from my iPhone

On Feb 15, 2022, at 10:15 AM, Robert Massmann via Mercedes 
 wrote:


Well all I am in the process of trying to change the seals on my Ml 350 
BT. I am getting a good feel for why this is such and expensive repair job 
with limited access and the number of parts that need to be removed. In 
the process I have had to remove the air control assembly that delivers 
the intercooled air to the intake manifold. There is a larger amount of 
soot buildup the second photo came from the inlet of the intake manifold 
that I could reach and haven’t touched the assembly that is shown in photo 
1. I did see some oil in the inlet to the turbo intake side as well as the 
transferee tube to the intercooler. May just replace crankcase ventilation 
valve while I have things apart. The exterior of this valve is quite oily. 
Car has about 87K miles on it. I have three more screws to remove before I 
can remove the turbo, one of which I can not see.


Will try and give an update in a day or two.

Bob Massmann
2012 ML350 BT 87K







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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

I just purchased this the middle of January. I believe I am the third owner. 
If you average the mileage it was only drive approximately 8000-9000 miles 
per year.


Bob Massmann

-Original Message- 
From: Randy Bennell via Mercedes

Sent: Tuesday, February 15, 2022 11:31 AM
To: Robert Massmann via Mercedes
Cc: Randy Bennell
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Is the soot the result of not driving it hard enough? Short trips, in
town etc.

Randy

On 15/02/2022 10:14 AM, Robert Massmann via Mercedes wrote:
Well all I am in the process of trying to change the seals on my Ml 350 
BT. I am getting a good feel for why this is such and expensive repair job 
with limited access and the number of parts that need to be removed. In 
the process I have had to remove the air control assembly that delivers 
the intercooled air to the intake manifold. There is a larger amount of 
soot buildup the second photo came from the inlet of the intake manifold 
that I could reach and haven’t touched the assembly that is shown in photo 
1. I did see some oil in the inlet to the turbo intake side as well as the 
transferee tube to the intercooler. May just replace crankcase ventilation 
valve while I have things apart. The exterior of this valve is quite oily. 
Car has about 87K miles on it. I have three more screws to remove before I 
can remove the turbo, one of which I can not see.


Will try and give an update in a day or two.

Bob Massmann
2012 ML350 BT 87K




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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

Assembled here in the USA!

Bob Massmann

From: Andrew Strasfogel 
Sent: Tuesday, February 15, 2022 11:18 AM
To: Mercedes Discussion List 
Cc: Robert Massmann 
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Robert, is this a German or US made Bluetec SUV?


On Tue, Feb 15, 2022 at 11:15 AM Robert Massmann via Mercedes 
 wrote:

  Well all I am in the process of trying to change the seals on my Ml 350 BT. I 
am getting a good feel for why this is such and expensive repair job with 
limited access and the number of parts that need to be removed. In the process 
I have had to remove the air control assembly that delivers the intercooled air 
to the intake manifold. There is a larger amount of soot buildup the second 
photo came from the inlet of the intake manifold that I could reach and haven’t 
touched the assembly that is shown in photo 1. I did see some oil in the inlet 
to the turbo intake side as well as the transferee tube to the intercooler. May 
just replace crankcase ventilation valve while I have things apart. The 
exterior of this valve is quite oily. Car has about 87K miles on it. I have 
three more screws to remove before I can remove the turbo, one of which I can 
not see.

  Will try and give an update in a day or two.

  Bob Massmann
  2012 ML350 BT 87K ___
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Robert Massmann via Mercedes]

I am wonder how that accumulation affect the performance of the pollution 
control and if it is still working effectively?


-Original Message- 
From: Buggered Benzmail via Mercedes

Sent: Tuesday, February 15, 2022 11:18 AM
To: Mercedes Discussion List
Cc: Buggered Benzmail
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

WOW!  That is crazy the amount of gunk in there.

--FT
Sent from iFōn

On Feb 15, 2022, at 11:15 AM, Robert Massmann via Mercedes 
 wrote:


Well all I am in the process of trying to change the seals on my Ml 350 
BT. I am getting a good feel for why this is such and expensive repair job 
with limited access and the number of parts that need to be removed. In 
the process I have had to remove the air control assembly that delivers 
the intercooled air to the intake manifold. There is a larger amount of 
soot buildup the second photo came from the inlet of the intake manifold 
that I could reach and haven’t touched the assembly that is shown in photo 
1. I did see some oil in the inlet to the turbo intake side as well as the 
transferee tube to the intercooler. May just replace crankcase ventilation 
valve while I have things apart. The exterior of this valve is quite oily. 
Car has about 87K miles on it. I have three more screws to remove before I 
can remove the turbo, one of which I can not see.


Will try and give an update in a day or two.

Bob Massmann
2012 ML350 BT 87K







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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Floyd Thursby via Mercedes]

My $500 99E300 had a completely buggered up intake manifold and jammed 
EGR, ran like sh*t.  An afternoon of cleaning got it running great.  Was 
a fairly easy job on that car though.


--FT

On 2/15/22 2:46 PM, Rick Knoble via Mercedes wrote:

More an effect of emissions controls. In particular EGR. EGR reduces NOX emissions in 
diesels, but it makes a mess of the intake manifold. In manifolds with movable flaps, 
things get "interesting".


Rick

From:mercedes@okiebenz.com
Sent: February 15, 2022 10:31 AM
To:mercedes@okiebenz.com
Reply-to:mercedes@okiebenz.com
Cc:rbenn...@bennell.ca
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Is the soot the result of not driving it hard enough? Short trips, in
town etc.

Randy


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--
--FT
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Rick Knoble via Mercedes]

Strong work!


Rick

From: mercedes@okiebenz.com
Sent: February 15, 2022 10:15 AM
To: mercedes@okiebenz.com
Reply-to: mercedes@okiebenz.com
Cc: rmassm...@embarqmail.com
Subject: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Well all I am in the process of trying to change the seals on my Ml 350 BT. I 
am getting a good feel for why this is such and expensive repair job with 
limited access and the number of parts that need to be removed. In the process 
I have had to remove the air control assembly that delivers the intercooled air 
to the intake manifold. There is a larger amount of soot buildup the second 
photo came from the inlet of the intake manifold that I could reach and haven’t 
touched the assembly that is shown in photo 1. I did see some oil in the inlet 
to the turbo intake side as well as the transferee tube to the intercooler. May 
just replace crankcase ventilation valve while I have things apart. The 
exterior of this valve is quite oily. Car has about 87K miles on it. I have 
three more screws to remove before I can remove the turbo, one of which I can 
not see.

Will try and give an update in a day or two.

Bob Massmann
2012 ML350 BT 87K
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Rick Knoble via Mercedes]

More an effect of emissions controls. In particular EGR. EGR reduces NOX 
emissions in diesels, but it makes a mess of the intake manifold. In manifolds 
with movable flaps, things get "interesting".


Rick

From: mercedes@okiebenz.com
Sent: February 15, 2022 10:31 AM
To: mercedes@okiebenz.com
Reply-to: mercedes@okiebenz.com
Cc: rbenn...@bennell.ca
Subject: Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

Is the soot the result of not driving it hard enough? Short trips, in
town etc.

Randy


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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Kaleb Striplin via Mercedes]

That’s true 

Sent from my iPhone

> On Feb 15, 2022, at 12:25 PM, dan penoff.com via Mercedes 
>  wrote:
> 
> Why not just let her drive it for a bit? Then it won’t matter when she 
> wrecks it.
> 
> 
> 
> -D
> 
> On Feb 15, 2022, at 12:51 PM, Kaleb Striplin via Mercedes 
> mailto:mercedes@okiebenz.com>> wrote:
> 
> The wife’s R320 has been sitting for 2 years waiting on me to work up the 
> nerve to do this job.
> 
> Sent from my iPhone
> 
>> On Feb 15, 2022, at 10:15 AM, Robert Massmann via Mercedes 
>> mailto:mercedes@okiebenz.com>> wrote:
>> 
>> Well all I am in the process of trying to change the seals on my Ml 350 BT. 
>> I am getting a good feel for why this is such and expensive repair job with 
>> limited access and the number of parts that need to be removed. In the 
>> process I have had to remove the air control assembly that delivers the 
>> intercooled air to the intake manifold. There is a larger amount of soot 
>> buildup the second photo came from the inlet of the intake manifold that I 
>> could reach and haven’t touched the assembly that is shown in photo 1. I did 
>> see some oil in the inlet to the turbo intake side as well as the transferee 
>> tube to the intercooler. May just replace crankcase ventilation valve while 
>> I have things apart. The exterior of this valve is quite oily. Car has about 
>> 87K miles on it. I have three more screws to remove before I can remove the 
>> turbo, one of which I can not see.
>> 
>> Will try and give an update in a day or two.
>> 
>> Bob Massmann
>> 2012 ML350 BT 87K
> 
> 
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>> 
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>> 
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>> 
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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[dan penoff.com via Mercedes]

Why not just let her drive it for a bit? Then it won’t matter when she wrecks 
it.



-D

On Feb 15, 2022, at 12:51 PM, Kaleb Striplin via Mercedes 
mailto:mercedes@okiebenz.com>> wrote:

The wife’s R320 has been sitting for 2 years waiting on me to work up the nerve 
to do this job.

Sent from my iPhone

> On Feb 15, 2022, at 10:15 AM, Robert Massmann via Mercedes 
> mailto:mercedes@okiebenz.com>> wrote:
>
> Well all I am in the process of trying to change the seals on my Ml 350 BT. 
> I am getting a good feel for why this is such and expensive repair job with 
> limited access and the number of parts that need to be removed. In the 
> process I have had to remove the air control assembly that delivers the 
> intercooled air to the intake manifold. There is a larger amount of soot 
> buildup the second photo came from the inlet of the intake manifold that I 
> could reach and haven’t touched the assembly that is shown in photo 1. I did 
> see some oil in the inlet to the turbo intake side as well as the transferee 
> tube to the intercooler. May just replace crankcase ventilation valve while I 
> have things apart. The exterior of this valve is quite oily. Car has about 
> 87K miles on it. I have three more screws to remove before I can remove the 
> turbo, one of which I can not see.
>
> Will try and give an update in a day or two.
>
> Bob Massmann
> 2012 ML350 BT 87K


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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Randy Bennell via Mercedes]

Is the soot the result of not driving it hard enough? Short trips, in 
town etc.


Randy

On 15/02/2022 10:14 AM, Robert Massmann via Mercedes wrote:

Well all I am in the process of trying to change the seals on my Ml 350 BT. I 
am getting a good feel for why this is such and expensive repair job with 
limited access and the number of parts that need to be removed. In the process 
I have had to remove the air control assembly that delivers the intercooled air 
to the intake manifold. There is a larger amount of soot buildup the second 
photo came from the inlet of the intake manifold that I could reach and haven’t 
touched the assembly that is shown in photo 1. I did see some oil in the inlet 
to the turbo intake side as well as the transferee tube to the intercooler. May 
just replace crankcase ventilation valve while I have things apart. The 
exterior of this valve is quite oily. Car has about 87K miles on it. I have 
three more screws to remove before I can remove the turbo, one of which I can 
not see.

Will try and give an update in a day or two.

Bob Massmann
2012 ML350 BT 87K




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Re: [MBZ] Oil Cooler Leak Repair ( 2012 ML350 Bluetec )

[Andrew Strasfogel via Mercedes]

Robert, is this a German or US made Bluetec SUV?

On Tue, Feb 15, 2022 at 11:15 AM Robert Massmann via Mercedes <
mercedes@okiebenz.com> wrote:

> Well all I am in the process of trying to change the seals on my Ml 350
> BT. I am getting a good feel for why this is such and expensive repair job
> with limited access and the number of parts that need to be removed. In the
> process I have had to remove the air control assembly that delivers the
> intercooled air to the intake manifold. There is a larger amount of soot
> buildup the second photo came from the inlet of the intake manifold that I
> could reach and haven’t touched the assembly that is shown in photo 1. I
> did see some oil in the inlet to the turbo intake side as well as the
> transferee tube to the intercooler. May just replace crankcase ventilation
> valve while I have things apart. The exterior of this valve is quite oily.
> Car has about 87K miles on it. I have three more screws to remove before I
> can remove the turbo, one of which I can not see.
>
> Will try and give an update in a day or two.
>
> Bob Massmann
> 2012 ML350 BT 87K ___
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