Curt Raymond wrote:
> While we're talking wipers has anybody ever lubed a 201 wiper? When its r=
eal cold out the wiper on my '85 190D gets real sluggish. This car has the =
sliding monowiper, I can't remember the specifc term, it goes in and out du=
ring its travel.
> I'm thinking I'll drip some ATF into the motor and lube all the linkage=
s too. What should I lube the linkages with? I've got some sunroof grease h=
anging around...
I'm going to try to attach a file that appeared on the old Ritter/Easley =
Baylor web site (try r=3Dthe file I've attached and see if it works). It =
describes a fairly simple way to service SOME transmissions of 201/124 =
monowipers. Very early models ('85?) and very late ones ('90s?) may NOT =
be opened as described (my Euro '85 190D won't open as described).
Simply removing the arm and lubricating the polished piston shaft with a =
little ATF makes a BIG improvement (several applications with operation =
between each application is better yet), but this strategy is less =
satisfactory than disassembly and lubrication.
If you are going to remove the wiper mechanism anyway, once the wiper is =
out, open the blower housing and lubricate the blower motor (with ATF) =
while you're in there!
Marshall
-- =
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 182Kmi, '84 190D 2.2 229Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 =
turbo 237kmi
-------------- next part --------------
Wiper Assembly Repair for =
Mercedes-Benz Single Wiper-Equipped Models
Introduction
The technical material for this FAQ (Frequently Asked Question) was
provided by Roger Ellingson of Seattle, Washington, was edited by
Richard Easley of Baylor University, and is provided as a service to
the subscribers of the Mercedes-Benz Discussion List. =
To receive similar quality tips as described below on a daily basis,
consider subscribing to the Mercedes-Benz Discussion List, which is
located at the following site:
[1]http://hsb.baylor.edu/html/easley/mercedes/welcome.html
Assumptions
Using the categories of mechanical ability from the Mercedes-Benz
Discussion List
<[2]http://hsb.baylor.edu/html/easley/mercedes/subscribe.html>, you
need to be at the level of "Light Do-It-Yourselfer" at minimum, to do
this repair.
Introduction
About two years ago, some friends were headed off on a weekend trip to
the Washington coast for a day on the ocean beach. The weather was
poor with heavy rain and as they headed down the Interstate passing
through Tacoma, Washington, the windshield wiper on their high-mileage
'85 190E came to a stop partway in its travel arc. They stopped on the
shoulder and after an unsuccessful attempt to get the thing moving,
they drove slowly to the next exit and made their way several miles to
the local MB dealer. The diagnosis was a failed wiper motor or wiper
transmission. This comes as an assembly and costs about $1000
installed, so they said. So, my friends rented a car and headed for
home, the trip forgotten. Upon retrieving the car later that week, the
bill was paid and soon after arriving home the cracked windshield was
discovered, just where the technician had struck it with a tool while
installing the new part. This was of course denied strongly but
eventually the dealer replaced the windshield -- all in all, not a
good week.
=
So, while driving my 95 C280 in a similar rainstorm several months
ago, and watching the wiper arm slowly groan to a stop, I saw myself
going through the same experience. Since I was close to my MB dealer I
presented my self and car at the service department for a diagnosis.
My service writer (I always deal with the same one, the "Team"
concept) felt that the transmission assembly would have to be
replaced. Since my extended warranty would cover this I wasn't too
concerned until he said that he couldn't work the car in =
until the following week. So, here I was with a potentially
undriveable car and no way to fix it for ten days. I headed for home,
between rainstorms, and decided to see what I could do, if anything,
Tools needed for repairing the wiper arm
1. Small mirror
2. Dental pick or small Allen wrench
Instructions
1. Raise the hood for improved access.
2. With the ignition off, rotate the wiper switch to the first
position. =
3. Turn the ignition on and off rapidly, so as to move the wiper arm
out of the park position.
4. Move the arm manually to the straight up position. =
5. Remove the three-sided rectangular cover (lower end of arm) that
extends over the cap by pulling it straight up from the bottom
end.
6. Using a sensitive fingertip or a dental mirror, locate the two
small recessed rectangular openings on the underside of the cap at
roughly the 5 and 7 o'clock positions.
7. Using a tool with a 90 deg end such as a dental pick or a small
Allen wrench, release the catches in the access holes while
pulling the cap upward with the left hand.
8. Now that the entire articulated wiper actuator is in plain view,
you will see as I did that the shaft that extends the arm up into
the windshield corners (twice per sweep) is very likely no longer
lubricated.
9. Remove all the old grease from the shaft and bushing using for
example a cloth soaked with lacquer thinner or similar, moving the
arm back and forth to expose the arm surfaces inside the bushing.
10. Apply new lubricant and I don't mean WD-40. I used Sil-Glyde, a
silicone grease which has a working temp range of -20 to +400 deg
F. =
11. Reassemble in reverse order.
12. Congratulate yourself for saving about $1000.
=
As to the position of the release catches, the two cars I have checked
are my own C280 plus a '99 CLK430 (the replacement for the
aforementioned '85 190E) which were identical. My car's wiper problem
is entirely gone and after two months is still operating normally. =
=
I subsequently asked two service writers plus the service manager at
my dealer if this little operation is ever done as part of a scheduled
service, especially at high mileages. The answer was no, never. I
expressed some surprise. I do see that selling an expensive repair is
a whole lot more profitable than applying a little bit of grease.
=
I also spoke last week to the two local MBUSA reps about this little
adventure. When I told them how I had resolved the problem there were
honestly interested and promised to follow up with perhaps a service
recommendation.
=
Since nearly every MB passenger car built in the last 15 years uses
the single arm wiper, I now expect all of you with cars so equipped to
head on down to the car and perform this little maintenance job, thus
derailing the sale of countless wiper motor assemblies.
To receive similar quality tips as described above on a daily basis,
consider subscribing to the Mercedes-Benz Discussion List, which is
located at the following site:
[3]http://hsb.baylor.edu/html/easley/mercedes/welcome.html
=
=A92000
Richard Easley, Waco, Texas and Stu Ritter, Denver, Colorado.
The Mercedes-Benz Discussion List is not affiliated with any other
Mercedes-Benz electronic discussion lists nor is it affiliated with
Mercedes-Benz of North America or any of its subsidiaries.
[4][stats.cgi?j=3Du&r=3Du&id=3Do]r ]thylarese[o[r[cm] =
References
1. http://hsb.baylor.edu/html/easley/mercedes/welcome.html
2. http://hsb.baylor.edu/html/easley/mercedes/subscribe.html
3. http://hsb.baylor.edu/html/easley/mercedes/welcome.html
4. http://www.hitlogger.com/cgi-bin/nstats-bin/do/link.cgi?id=3Do]r]thyl=
arese[o[r[cm
