I just replaced the front pads on my 2004 Coupe. I did it because the wear sensor on dash kept illuminating more and more, and sometimes would even stay on when I didn't even have the brake pressed down.

After installing the new brakes, I noticed that the front passenger side wear sensor was a bit off. On the driver side, it looked fine(Although I did it in the dark). On the passenger side, however, the little nipple/cyllinder that slips down into the brake pad looked like it had been rubbing on something. It was bent to the side slightly, and the end of it was flat instead of rounded with the wire inside exposed. I went ahead and just installed it back in, and after driving it for a few days, the sensor hasn't come back on.

One of the odd things that I noticed was that the pads that were on the car still had about 1/4 inch worth of pad left. So I'm wondering if that worn wire caused the sensor to go off before the pads were actually worn. Either way though, I wanted to change the pads. They were giving off TONS of dust. I think they may have been the original pads on the car, as it only has 27k miles.

Can anyone tell me the part number for the wear sensor? And if it would be okay to just replaced the one that had the worn spot and leave the other one on?

 

My advice would be to replace them both if you're going to replace one of them anyway. Just to keep things fresh and eliminate any kinda incompatibility issues that might arise from having 2 different brands in place.

As far as the sensors go for part numbers, someone else will have to chime in with that one hahah. Maybe 180 or oldoc might have the answer, shoot them a PM?

 

Sensor #05099878AA
You should be able to get after market ones as the Chrysler are $$$$$$$ I expect.
Some linings come with the sensors in the box, depends what you order.

 

Much appreciated 180, I knew you would know the part NR for this little sensor somehow lol

 

Thanks for the part number. Do you know if I call the Mercedes Dealer if they will have this part number to look up, or what kind of car would I need to tell them to look for to find this part?

 

Why not go to a parts store and say you want them for a Crossfire?

 

Anyone know if the Bake Pad Wear Sensor on 2003 MB SLK320 would fit 2004 crossfire. Autohaus has part PEX 1405401217 for less than $5. Seems to be a lot more expensive at Mopar. Thanks

 

Everything is more expensive at Mopar, same part twice the price.
The part you list is actually Mercedes part 140 540 12 17.