C55_AZ

Hello

My 2005 C55 AMG has been having issues with the ABS, ESP, and something to do with the brakes.

I just replaced my rear pads, but I am still getting a brake pad wear message at the same time the ESP and ABS malfunction erro pops up.

My power steering goes away, and the speedometer goes down to 0, and the car enters limp mode.

When this happens and I put the car in park, it will not get out of park.

Any help would be appreciated!

cs1c

I've had the exact same symptoms before on my c55. It ended up being the ABS/TC computer which was failing. It got progressively worse till I could only drive a few miles before the error codes came up and it went into limp mode. I had to replace with a second hand module. To diagnose need a diagnostic device that can read the codes in the various modules the car has.

Timmy121

I have had the same problem with my 2005 C55 AMG, its been in the shop with Mercedes for over 2 weeks, they replaced the ABS pump and computer chip next to it and still had same problem so they changed my front SAM computer and the problem still exists ..........they told me since they supposedly fixed my problem with replacing the ABS pump/computer chip but obviously didn't fix the issue they will be stuck eating the cost of all procedures (labor) necessary till its fixed for misdiagnosing my car. I really hope to have good news by Friday when they call me back

cs1c

Sounds very similar to my experience, my mechanic lost plenty of $$ diagnosing and miss diagnosing. Wrong replacement abs module twice, over two months later it was finally fixed. He talked of testing the SAM modules too. The electrical gremlins in our cars can be a financial killer!

Timmy121

So it turned out to be electrical gremlins in the end eh? what a bummer......i was told it may be bad wire or voltage spikes the shop foreman is actually very frustrated with my car, my rep told me they will get to the bottom of it and that has me thinking they might fly out a tech from Germany? lol idk but hope this will be solved by end of this week because this C300 ain't cutting it in terms of power

amgen

I´ve had similar problems, turned out to be bad connection between the ABS-module and the multiwireconnector which connects to it.
Remenber too that a old/bad battery can cause all sorts of problems. Last time it was the seatbeltwarning going on time to time.

Timmy121

So after about 36 days it has been FIXED.......turned out to be a issue with coils (EMI)

cs1c

Ok wow that's interesting. Here's what mine looked like after replacing the ABS module. My mechanic said early facelift w203 modules (mine's 2004) suffered due to heat and that the ABS module was modified shortly after to resolve, so he decided to put a heat shield around it. I wonder if it's fixed because it's now shielded from a coil dodgy coil pack?

amgen

My mechanic solved the problem by putting a heatshield between my Kleemann headers and the ABS-unit.

I could before get all sorts of warnings on the dash when the engine was hot.
There is too a repair-kit for the ABS-module, which help bad grounding.

Mine is a -05.

Timmy121

Oh wow, well it was always a problem if cold or hot, just kept popping up on dash and Limp mode but maybe because it was already heat damaged.......think I'll be doing the same around my ABS system, Thanks!

Timmy121

My headers are being upgraded next Thursday and Dyno tuned on the 20th this month so i will ask the shop to add heat shield! great idea! Thanks

Lanh Nguyen

Did they replace all the coils?

Timmy121

No just a swap of the same coils, move all from the right to the left and problem gone

jjf-amg

Currently need some help,

I recently did my spark plug and wires replaced. I undid some fog light work that the previous owner did. Then I started getting all these messages. After scouring the forums and web I got an MBII iCarsoft scanner. I replaced my front driver side ABS speed sensor, which the cable was slightly cut into. Unfortunately it didn’t get rid of these lights.

So after a few looks at the fuse box and specifically looking for fuses connected to various modules, they all turned out good. My codes are the following:

P2310 [(171/199/203/209) One or more messages from control unit N47-5 are not available on the CAN bus]

P2036-000 [MBII Didn’t really give a description there]

P20cc-000 [MBII Didn’t really give a description there]

P2012 [The signal from control unit N47-5 is not available on CAN bus]

P1876 [The signals sent by control unit N47-5 for the wheel speeds and the braking torque are not available on the CAN bus]

C1000 [MBII Didn’t really give a description there]

C1001 [MBII Didn’t really give a description there]

So the interesting part here is that after taking out some of the fuses, inspecting them and putting them back (checking continuity), all of the codes become stored and not current. So my lights go away. I take the car out for a drive (10-30 miles) with absolutely no issues (Somewhat spirited drives and also checking the sensor values from the MBII on all modules. All sensors seem to be working properly with (wheel speeds/brake switches... and others). During the test drive I am able to access the ESP module (after putting in park) However, after going back home and letting the car rest for a bit (couple of hours) and try to exercise it, the lights come back. So during the limp drive I try to go into the ESP module with the scanner to see if I can get an idea as to what messages are missing. But it says that I can’t access them! I’ve repeated the process twice (removing fuses to the drive to the limp mode). Also cleaned the grounds around the engine bay to make sure there was good contact.


So, I am bit confused. I think it might be my ESP module, but I am not sure. Or could it be the SAM? After reading this thread I am going to try to swap the ignition coils from side to another and see if that does anything.

Unfortunately I am near the LA area and not in Maryland :/ otherwise would have taken it to this shop.

I have an 06 with 99k miles

Any help or ideas would be greatly appreciated!!
I can provide greater detail if needed.

Cheers,

nsolomon

in my case after replacing all 4 wheel speed sensors, abs module (twice) brake booster, 3 different merc soecialists and almost a divorce , i removed the abs module , got some wire contact cleaner, and cleaned out the wire harness connected to abs module , and et voila problem solved

jjf-amg

Fortunately, I was able to find the issue. The spark plug wires were bremi and didn’t have enough resistance or wire insulation. I had to and get Bosch OEMS and no more codes! I did replace a abs sensor as the wire was a bit worn.

thanks!!

capo_vendetta

I had the same problem and we searched for about a year for the problem. We tried a lot of different solutions like changing front Sam, rear SAM, ESP Module, wiring harness from the ESP, new spark plug wires, regulator for the alternator, cleaned al the mass points, changing ABS sensors,...

The problem still is in the car. the only thing that works is placing a heat shield on the ESP module. so i ordered a original CLK 55 esp heat shield. nr: A 209 430 00 62

Problem came back after 400km.

Now we placed our self-made heat shield and the problem stays away.

I think i leave it like that till i feel like it to order new ignition coils and re-try.

amgen

I´ve too suffered from all sorts of warnings untill my mechanic found an easy solution.

The problem was too much heat from my Kleemann headers affected the ABS-unit.

There is a heat shield close to the headers. My mechanic made a cut into it and bent it
over the header to protect the ABS-unit.


Here´s another picture of it.


A genius fix! :-)

capo_vendetta

Just made a heat shield but it didn't work.


Also the genius solution of your mechanic, don't work.

Than i put back the previous heat shield and that works well.

Now, i'm curious were exactly the problem is situated!

capo_vendetta

Now i'm pretty sure that my problem doesn't come from the heat of the engine or exhaust. I started the car, after more than 12h being parked, and after 3s the problem came back.

Anyone has another solution?

amgen

-Bad connection, oxidation in the ABS-unit multiconnector
-Doublecheck the ground connection to the ABS-unit, there was a long time ago a recall; changing the washer where the cable connects to the chassie.

capo_vendetta

There is a new wiring harness in the car, ground connection are cleared...

Roudy C55

My C55 is having the same exact issue. Can I know the location of this shop as im in Md aswell and would like to get this fixed.

YOgun27

I’m curious about the location in MD as well. It looks like I have a similar issue too!

Roudy C55

C55? And Then Random ABS/ESP lights car goes into limp and wont shift. My Fuel Pump went out recently aswell the C55 been giving all kinds of issues lately!