Driver seat will not tilt - control panel or motor? - Mercedes-Benz Forum

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Old 07-06-2011, 03:28 PM   #1 (permalink)
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Question Driver seat will not tilt - control panel or motor?

Hi everyone,

I'm picking up a 1997 e420 this Saturday and while test driving it I noticed I could not tilt the driver's seat up or down. I can adjust the bottom part and the head rest but not the back of the seat. Would you think it would be the button controller on the door? Or the motor? Any easy way of determining this? Will the passenger controls plug in to the driver side for testing?

Thanks,

Warren
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Old 07-06-2011, 03:32 PM   #2 (permalink)
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Had the same problem a while back. Fixed itself when I replaced the battery. The switches also go bad from time to time.

Good luck with your purchase!
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Old 07-06-2011, 04:25 PM   #3 (permalink)
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I would suspect the switch too. Try taking it apart and spray it off well with some good electrical contact cleaner. CRC MAF cleaner (non residue) has been recommended also.
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Old 07-07-2011, 05:46 AM   #4 (permalink)
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Thanks for the replies. I'll take a look at it Saturday. How can the battery be the cause if the other switches work? Also, do you know if the passenger controls will plug in the driver's side? I can always look and try. I've seen these controls on ebay for around $40 - $60 so that's not bad if I have to replace it.

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Old 07-07-2011, 04:56 PM   #5 (permalink)
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Quote:
Originally Posted by WarrenW View Post
Also, do you know if the passenger controls will plug in the driver's side?...
Sorry I missed that question earlier. As far as I know the passenger side seat control switch should be electrically identical to the driver side switch. Physically it might be a mirror image.

Last edited by Musikmann; 07-07-2011 at 05:26 PM. Reason: spelling
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Old 07-07-2011, 05:23 PM   #6 (permalink)
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yes, they are mirror imaged parts, not swappable. if you need, I may have
spare for $20, plus shipping. pretty sure they're still in my w210 box. so
try to isolate the problem first. verify continuity in seat junction blocks and
work backwards towards power source.

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Old 07-07-2011, 05:29 PM   #7 (permalink)
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I think the OP just wants to test the passenger side switch on drivers side to rule out bad motor, not to install permanently.
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Old 07-07-2011, 06:27 PM   #8 (permalink)
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oh....mmm. too much meds. yes, i guess it is possible that the pinouts are
the same on driver vs pax side control modules. so be very sure to take
static readings before energizing.
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