To: Mercedes Discussion List; davesl...@okiebenz.com
Cc: Kaleb C. Striplin
Subject: [MBZ] 124 blower motor
Working on a 124, blower not working. It used to work a while but would
blow fuse. Replaced fuse and at some point it quit working again but
fuse if not blow. I am getting no power to either side
There is a three-pin junction for the control and power and ground to the
blower regulator, located on drivers side under the windshield. Under the
hood, look on the cowl, pinch the sides to pull up the connector. I'll try to
send a picture. I think you can apply ground and power and that
Working on a 124, blower not working. It used to work a while but would
blow fuse. Replaced fuse and at some point it quit working again but
fuse if not blow. I am getting no power to either side of the fuse.
Where should I look for the issue? Trying to locate wiring diagram now.
Circled in purple is the junction connector between push button controller and
blower motor controller. Test here!
--
Max Dillon
Charleston SC
'87 300TD
'95 E300
On November 8, 2015 12:22:30 PM EST, "Kaleb C. Striplin via Mercedes"
wrote:
>Working on a 124, blower not
If it kept blowing the fuse the bearings were bad, and it's likely you
have now burnt off the wire supplying power.
I believe it's switched at the keyswitch, but will have to dig up the
wiring diagrams to see for sure. No fuse in the fusebox, it's direct,
although there may be a
This applies to my '87 wagon, manufacture date of January '87 (early version).
On the connector referenced below (X64 in the wiring diagram), pin 1 is ground,
wire colour should be black. Pin 2 is power from the fuse, should be red. Pin
3 is control signal from the PBU, should be green. The
OK so I pulled the ignition switch and tested the wire from where it
connects to fuse holder and connection on ignition switch. It tests
good so it has to be the switch I would assume. Yes I did try giggling
switch while testing for voltage and did not get anything. Switch must
be toast I
Fuse 12 says vacant on my car
Sent from my iPhone
> On Nov 8, 2015, at 1:44 PM, Peter Frederick via Mercedes
> wrote:
>
> If it's the ignition switch, everything else on fuse 12 supply buss will be
> dead as well -- if the other things work, it's a loose connection.
>
Should be a wire from fuse 12 input side to the outside fuse box --
prior to 12/86 the 12 position was used for the 30A fuse. Melted the
plastic too much, so they changed to the outside fuse.
You should be able to check, a pink/gray wire from the fuse box should
run the the external fuse
This is a 93 FYI so I would imagine it came from factory with the 30A
external fuse. I did check voltage supply as described in manual using
the socket box tester, it all checks out so PBU is good. Its got to be
either somewhere under fuse box or ignition switch I guess.
On 11/8/2015 1:20
If you can find the wiring diagram and can make some sense out of it let
me know. I have what I think is it pulled up in WIS but it is not very
legible and I am not 100% sure it is even my exact car. They don't list
a 124.128 in the diagrams I have. Even if I had a copy I have very
little
See post I just sent. I currently have the fan and regulator removed.
PBU checks out. I get 7 volts or whatever it calls for on 1 of the pins
above the brake booster, so it is simply a supply problem to the fuse
itself.
On 11/8/2015 1:29 PM, Max Dillon via Mercedes wrote:
There is a
If it's the ignition switch, everything else on fuse 12 supply buss
will be dead as well -- if the other things work, it's a loose
connection.
Peter
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Attached are pics of the wiring diagram for 124 cars "as of August '87".
--
Max Dillon
Charleston SC
'87 300TD
'95 E300
On November 8, 2015 3:12:22 PM EST, Max Dillon wrote:
>Circled in purple is the junction connector between push button
>controller and blower motor
Depending on how easy it is to access, one can get good results
from oiling it.
-- Jim
Jim,
I have heard that others were able to fix theirs with some oil. It looks
like lots of work to access the motor so I figure I'd rather replace with a
known good unit than take my chances with oil and
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Subject: Re: [MBZ] 124 blower motor - Kaleb?
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interested in someone else stepping forward. I'm in need of a
replacement blower motor for my '90 300D. The squeeking at low speed
is now intolerable
Depending on how easy it is to access, one can get good results
from oiling it.
-- Jim
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Subject: [MBZ] 124 blower motor.
To: Mercedes List Mercedes@okiebenz.com
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The cirping crickets in the '90 124 have gotton almost unbearable at
low blower motor speed. Not noticeable at high speed. So it's
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To: Mercedes List Mercedes@okiebenz.com
Sent: Sunday, December 17, 2006 11:43 AM
Subject: [MBZ] 124 blower motor.
The cirping crickets in the '90 124 have gotton almost unbearable at low
blower motor speed. Not noticeable at high speed. So it's either high
speed or off these days
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