al300sd

Soooo i just picked up a 2003 clk430 45k miles has a srs light lit up. I looked under the seat and found the yellow 3 wire plug coming from the harness. However i cant find the other end i looked for an hour, does any one know where the wire would be coming out from???

Mercnotworking

This Video might help you.

Mercnotworking

Hi, here's a picture of the underside of my passenger seat. I unbolted the seat front and back, then tilted the seat back to get this pic.


Underside of a passenger side. Right hand drive.


I hope this is helpful.

BTW, for weeks now, I have been trying to solve a SRS light issue and eventually I took apart all the plugs on the passenger seat and applied a tiny dab of vaseline to all the terminals and that solved the problem. Yippee. Now i can get my car MOT'd and on the road for the summer.

al300sd

Awesome, thank you so much. Now i am even more dumbfound, i have 1 wire coming from the back of the seat (brown and blue) thats it nothing else in the front or back ????

Mercnotworking

Unless your seat is heated then there's a good chance that wire is your Passenger Seat Occupancy Sensor which you could solder onto your loom.

However, my recommendation would be to take your seat apart - like in the video - to be sure.

al300sd

the seat is indeed heated also seat pad wire is 3 wire the one i have coming out is 2 wire..... idk what to do here. i hooked up my scan tool had a message for the drivers side air bag thats it. reconnected it now the srs light turns on after about a minute or two after start up and no fault code????

Mercnotworking

Here are some pictures of the Passenger seat occupancy sensor. I bought this from ebay, but haven't required it because I managed to connect the existing one correctly with the help of a wee dab of vaseline. This is about to go back to the seller, so you could buy it from him next week, if you like. Cost me £28 including uk postage. Part no. A208 820 5310 DM me if you would like more info. Three wires coloured, white brown and black.