2000 C230 power seats inop
 

Checked all the under hood fuses. pulled them out inspected for burns and or corrosion and replaced....nothing....neither seat none of the seat controls work

The fuses for the seats are in the fuse box in the trunk.

that's wonderful to hear. ill check them today and get back to you
Thank you

I inspected and replaced the trunk fuses to no avail......Whomp Whomp
where do I go from here?
Found this in the trunk by the spare tire
Any ideas what this is

From the part number it’s a lateral acceleration sensor. Looks like it’s in the panel ahead of the spare -

https://mbworld.org/forums/c-class-w...l#&gid=1&pid=1

https://mbworld.org/forums/c-class-w203/506102-esp-error-diagnosed-rotary-speed-lateral-acceleration-sensor.html

Sixto
98 E320s sedan and wagon
02 C320 wagon

A common failure on the 203 body is seat control mods. You may want to get a scan.

Mine is a 202 but I have a good friend that is a snap on dealer
so ill se if I can get him to plug his $10K scanner into for me.
Thanks for the advise

ATE = A brand of braking system parts 163 at start of the Mercedes part number = first used on ML series

The part number 163 542 06 16 is coming up as lateral acceleration sensor for ESP ( Electronic Stability Program ) 99 - 05 ML but be aware that parts are sometimes shared between models.

Do you have a switch above the radio area that says " ESP OFF " if so, you have stability control, If you have a switch that says ASR OFF " You have Acceleration Slip Regulation. If no switch and a 5 pipe ABS unit under the hood, you have ABS only.

I have the ESP system and all is working well. if it had a problem in the past it has been fixed. the power seats are the car's only issue

Master Tech question?????? wink wink RPM55
 

If I pull the wire harness off the bottom of the seat,,,,,,,,
do you know which color wires control the bottom rear lift/lower. I need my butt to go down.. LOL....
typically the back of a seat bottom sits lower than the front and that's not the case right now

I suspect your problem may be the seat adjustment control relay. It is located under the panel that is forward of the spare tire cover. It should be Part #: 002-542-22-19. Check your messages for more info. I sent you an email also.
It seems that I can no longer attach files to messages or emails created on the forum. It's possible that I was never able to, my memory is not what is used to be!

Any way, back to your question, the wire colors in the harness are white/blue and black/blue, positions 11 and 12 in the connector. The wire colors on the wires attached to the three motors under the seat are all black and white.

Robert

thank you so much Robert
 

I appreciate so much all the help guidance and tips I get on this forum. you guys are a wonderful collective of humans and knowledge and I thank you all so much

thanks RPM55
 

I got my seat manually adjusted to where it is comfortable for me.
the relay checked out good, I dropped it off at my buddies auto electric shop and he said it is a good relay......
What left to check now?

RPM55
 

Where would you look next good sir?
any thoughts?

This is the definitive W202 seat problem thread:

http://www.peachparts.com/shopforum/tech-help/132934-98-c280-power-seat-problems.html

However, it is always the relay in my experience. I would question how the relay was tested. As discussed in the above thread, the circuit board in the relay develops circular cracks in the solder around some of the pins.