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  #1  
Old 05-02-2007, 10:50 PM
tfransen
 
Join Date: Aug 2005
Posts: 9
99 E320 Power Seats and Windows

My power seats and front windows quit working from time to time when the car parked. I can disconnect the battery for a second and they will start working again. They might work for a day or a week and always start working when the battery is disconnected.

One garage said it was the convenience relay...another says it’s a computer located in the door. I don't have a lot of confidence in either recommendation...any advice?

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  #2  
Old 05-02-2007, 11:14 PM
Registered User
 
Join Date: Oct 2005
Posts: 4,263
I believe that you have a computer in each rear door on that car, and the "convenience relay" must be the SAM, which is somewhat expensive. Since they all go out, I'd not think that this was the door modules.

I've never heard of this problem, so I'm sorry that I can't be of more help.
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  #3  
Old 05-02-2007, 11:52 PM
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Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
Have you tried reprogramming with the key when this occurs rather than disconnecting the battery?

The procedure is in the manual.
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09' E320 Bluetec 77k (USA)
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  #4  
Old 05-03-2007, 08:22 AM
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Location: Tucker, Ga USA
Posts: 12,153
Well don't keep disconnecting the battery as that can cause damage as well!

Most likely problem is one of the rear door control modules. Have a trusted shop check out the interior network of computers.

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