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Old 10-19-2002, 12:53 PM
sundance 222
Posts: n/a
Question Seat Operation Problems 1988 190E


I am having problems with my electric seat on the driver side. It originally got stuck in the farthest position back and would not move forward but the rest of the adjustments continued to work. I removed the switch from the passenger side and was able to use it to get the seat move forward but at this point the seat got stuck in fully recline mode and that is where it is today. Great for sleeping but hard to drive. I have ordered a new seat contorl for the driver side but would appreciate any additional thoughts, experience or likely solutions to this problem. Thanks in advance for the assistance.
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Old 10-19-2002, 01:31 PM
BlueBabyBenz's Avatar
Registered User
Join Date: Aug 2002
Location: Vancouver, BC
Posts: 151
My seat reclining feature doesn't work either, but unfortunately mine is stuck in upright position. Great for driving, but terrible for sleeping.

Sorry, couldn't resist.

I haven't taken the control off, but is there a possibility of being able to clean the contacts?

Have you tested the motor itself?

BTW, how much was the new control?

MB 1986 190D in my past
MB 1987 300E on the street
MB 1994 'Smoke Silver' E420 in my driveway
1999 Mazda Miata in the fun stable
1964 E-Type Jaguar Coupe- Sold
1970 E-Type Jaguar Coupe- Sold
1968 Corvair Monza Conv. with Turbo Transplant- Sold
1986 Merkur Xr4ti- abandoned
various mundane American autos

If I'd known then what I know now...

Hell, I'd probably still have done it anyways.
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Old 10-19-2002, 05:39 PM
sundance 222
Posts: n/a

Thanks for the sympathy, given the two situations I would gladly take yours. In regards to the cleaing of the contacts, the problem I experienced when I was trying to do just that is that the contacts are a series of ball bearing held between a series of contacts and once the unit is opened .... well cleaning the contacts are no longer the bigest problem you have. But this in the end creates the motivation needed to search out and purchase a new switch! I found the part at for about 67.50 plus shipping. Thanks for the response and best of luck with your challenge.

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Old 10-20-2002, 11:01 PM
Registered User
Join Date: Apr 2002
Location: New York
Posts: 4

Hello, I had the same problem and re-built the switches. My problem was dirty contacts. And YES the biggest problem is the small ball bearings that will fall out. If memory serves me, (although rarely well) there were about 12 small balls. Be sure to work over a cleared workbench and be prepared to catch them. I would lay a bath towell on the table so they won't bounce away. During the process I lost one, and it took almost an hour to find. I polished the contacts inside the switch, with a dremel and worn wire wheel. and VERY light presure. You'll barely need to touch them. You'll also run into little rocker type contacts that will also fall out. This is a tedious, job, and NOT for the impatient. Too many years ago, I worked in a TV shop, so I was not intimidated. This is NOT an easy job, but with a great deal of patience (a magnifying light in my case as well) it can be done. The re-assembly is the problem. If your not good at figuring out where all the little parts go, you might cosider just getting a replacement even though they are expensive, BUT it can be done. You'll need a dremel w/wire wheel, (a worn bent over wheel works best as it is less abrasive) and a wide tip tweezers (which works better than a small pliers). Good Luck! :p
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