Electrical Problems :o(

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Sep 17, 2022 | 01:40 PM

#21 (permalink)

onehundred80

Senior Member

Joined: Apr 2006

Posts: 25,432

Likes: 648

From: Ontario

Re: Electrical Problems :o(

I fixed my seat problem a long time ago and I made a .pdf file showing what I did. My trouble was a failed diode which only allowed the seat to move fore and aft with the door open. I found a diode which had failed so I replaced it. This is not the solution in many cases, I would buy a new solenoid if the diodes were OK. The PDF shows the Siemens part number, which is on your solenoid as well.
Here is the .PDF CLICK

Sep 17, 2022 | 01:47 PM

#22 (permalink)

GraphiteGhost

Senior Member

Joined: Jul 2009

Posts: 6,358

Likes: 797

From: Central South Carolina

Re: Electrical Problems :o(

Bingo, post 21 has the .pdf (and now I have it too).

Sep 19, 2022 | 09:32 AM

#23 (permalink)

Uriah

Thread Starter

Joined: Aug 2022

Posts: 16

Likes: 2

From: Staffordshire

Re: Electrical Problems :o(

Quote:

Originally Posted by GraphiteGhost

That tutorial I mentioned, is in the document collection. Free downloads all over in there, including the service manual. The diode that goes bad is INSIDE the relay (I believe) and fixing it (if it is the problem) is simple to unsolder/resolder a replacement universal diode (part number in the tutorial). If your good to moderate with a soldering iron should be very easy. The relay itself is located on the inside firewall (if I remember correctly) and towards the center of the car. You can do it, many have. Good luck!

Checked connections and diode function (to the best of my ability) and nothing found, but there is a sign of some 'trauma' between the soldered pins, 4th from left and 5th from left, along the bottom as pictured above. On the opposite side there appears to be evidence of the plastic melting local to this. Not massively conclusive, but enough to invest in a replacement relay.