[agent-tom]

The drivers power seat stopped working working on my 2000 ML320. The passengers seat and memory controls work fine. Does anyone have a troubleshooting flow chart? I quickly checked the wires under the seat and they appear to be in order. Also, I searched "front seat" and "power seats" and only found 5 posts, but they were unrelated. Is there a better search term or keyword? Thanks!

 

[RJV]

Go to the following link, scroll down to the bottom of the page and download "wiring.pdf". Then have a look at page 70 and the next few pages of the pdf.

bayhas.com - /w163manu/Repairs/

 

[Noodles]

Mine turned out to be a fuse after the seat jot jammed by a small flashlight. My wife just kept cranking on the switch until the fuse popped. I was lucky she did not ruin the motor or frame because it comes as one very expensive unit.

I believe for 2000 year it is fuse 33. It is at least worth a look.

 

[Musikmann]

Make sure the track is clear of coins or other small objects. Noodles' experience sounds like some others I have read about.

 

[43sqd]

If you have no movement in any of the positions, then you must first check fuse #10 in the right side kick panel fuse box. Pulling it out and looking at it is worthless, With the key in pos. #2, test both contacts with a test light or DVOM for 12v

If the fuse is good, the next thing to consider is the seat adjustment switch on the side of the seat. If the seat trim has already been broken, the connector from the switch to the control module might have become undone.

Remove the trim panel and check.

 

[agent-tom]

Found broken connection under the seat. Looks like someone's foot may have stepped on the wire, breaking the "clip" on the connector that keeps it snapped into the control box mounted up under the bottom of the seat. It plugs back in, bur come out easily now. Hopefully I can just replace the connector end. Thanks again for the awesome advice.