klonsbury

Hello everyone. Ever since I got my car lowered, I now get a message that states ESP inoperative. The manager at the suspension shop said that he had to remove the brake lines from the brakes because how the front springs were setup. Here's what I've noticed. The passenger front has two wires coming from the fender to the wheel. The drivers front only has one wire going from the fender to the wheel. You can see where there's another plug-in and another set of couplings for the wire to snap into. Service manager said his tech noticed only 1 wire on the driver side. Originally I thought he just forgot to plug up second wire on the driver side. I'm guessing these wires belong to the wheel sensors. Is there supposed be 1 wire on the driver side and 2 on the passenger? I've also tried the lock to lock screen wheel sensor reset. I still get the same message though. Btw, the message appears after the 1st mile of driving. Any suggestions on what to do?

On a side note he said he had to bleed my breaks during this process. Since then my brake pedal goes down a little further than it used to. Is there anyway to fix this.

Thanks for the help guys I really appreciate it.

Kyle.
2007 CLK550

Rudeney

The two wires are for both the wheel speed sensor and the brake pad wear sensor. Not every wheel has a brake pad wear sensor (only on in front and one in back), but every wheel has the speed sensor. Opening the brake lines and bleeding them should not cause a problem with the wheel speed sensors. But, this should not affect the brake pedal feel unless they didn't do a good job of bleeding the brakes. If you haven't done a brake fluid flush in the last two years, you might want to do that, which will also get any air out of the system the mechanic may have missed.

My guess is that they damaged either the sensor itself or the wiring lead. If you can get someone with SDS to scan the codes, it will tell you the exact problem.

klonsbury

Thanks a bunch Rodney!

It sounds like I have the correct number of cables. By reading the codes, will it tell me which wheel has the troubled sensor?

Rudeney

Yes, it will. Here's a list of the ESP DTCs:

http://benzbits.com/ESPCodes.pdf

austinclk550

did you try resetting the steering angle sensor by turning the wheel lock to lock 3 times? that may be all it is

klonsbury

3 times? I thought it was just once. I started the car and turned the wheel all the way right until it stopped and then all the way left until it stopped. So I guess I need to go back and forth 2 more times?

austinclk550

pretty sure its 3 times

Rudeney

Two full turns lock-to-lock usually does it, but three won't hurt. Sometimes I've had to remove the fuses to totally "wipe out" the calibration and the do the turns. Also, the car must be in park (i.e. not moving) when doing this.

klonsbury

Rodney, I noticed in another thread you mentioned what fuses to pull. However, I can't find that thread. Can you tell me what fuses to do?

Also, I have a P0015 code stored in my car. Is that related to balance shaft issue? Or this resolved by replacing those magnets? Thanks for your responses. You are always so knowledgable and helpful.

Rudeney

Fuses 55, 56, and 57 should do it. And P0015 is a bad camshaft sensor magnet. It's an easy DIY and less than $100 for all four. Balance shaft symptoms are P0016/P0017.

klonsbury

Issue resolved.... So far.

I pulled the fuses like Rodney suggested and then did the steering wheel reset procedure. It's been a week and no message. Where as before, I'd receive the message within a mile of starting the car and driving.

Thanks everyone for your help!