mlopez218

Hi guys, i'm having some problems with the stability control in my W203. From one day to another a īESP out of orderī legend appeared on my dashboard. The car runs as smooth as always but that legend freaks me out!!!
I donīt know if itīs somehow related but last weekend i had to replace the battery and the one-touch passenger window and the sunroof stoped working, they work but i need to keep the buttons pressed
I dont think the ESP and the windows/ sunroof issues are connected since the EPS legend appeared before the battery replacement, but then again who the f*ck knows

Could you guys give me a hand with some hints?? The carīs year is 06 and the odometer reads 79000km (49000 miles).

Plutoe

Have someone diagnose the ESP--look to uneven tire pressure and or faulty wheel speed sensors!

mlopez218

Thank you mate!

cvx

With this W203 should use a 2nd battery to keep the system alive while changing the battery... Your problems are not uncommon, ESP going, windows/pano roof out of sync, SAMs getting fried etc.

https://mbworld.org/forums/c-class-w...g-battery.html

See this thread, hope it helps Post #85 especially

mlopez218

Thank you! I'll try that as soon as i get home.
The thing is that the ESP sign appeared before replacing the battery. Anyway, i'll do the turning thing with the steering wheel and let you know.
Wish me luck!!!

DreamnZ

I had the ESP on mine too. However, a separate thing started happening; my windshield wipers started going off when I turned the steering wheel. Later the wipers just started going off when the car was on. Took it to my Indy and he pulled the codes. Found out I had a bad clock spring. Upon replacing the clock spring (a dealer only part that cost $400) I found that a wire in the turn signal stalk was broken. Had to replace that too. Now, after all that, no more ESP, no more issues with the wipers and all is good on the C230.
Hope this has been helpful in case this is what's going on with your W203.


Richard

C230 Sport Coup

I'm surprised no one has brought this up yet but anytime the battery goes dead or is disconnected on a 203 you need to turn the Wheels lock to Lock 3 times with the engine on then turn the engine off and turn it back on again and it should clear the ESP error. if one of the modules has failed such as the yaw sensor which is underneath the plastic cover behind the rear seats or in the trunk of the sedan under the carpet at cetera he would need to use the star system Diagnostics to determine which module is bad. That being said you can get a yaw answer these days for about 40 bucks on eBay.
I had an ESP error on my dash for such a long time until the price of those modules came down to an affordable price used. New they are like $700.

mlopez218

Bad news: i did the steering wheel thing and the error is still there. Breaks my heart

DreamnZ

Having tried several things, I would get the code read. It may be related to something else. If you get the codes read, then you'll know exactly pretty much what the issue is. Hope you get her sorted soon.

mlopez218

Thanks mate.

mlopez218

Hi there! I found a YAW sensor for sale on eBay, but it's only one piece! I think i read on this thread the car has two sensors (that is to say two pieces), is that right?
Thanks!

mlopez218

News! I got the code read and apparently it has something to do with something inside the steering column, some sensor or something which doesn't recognize the steering wheel angle or position.
And some days ago i discovered the cruise control is not working either, i suppose it's all connected, am i right?

Reuvers

Best is to get the actual code for better help.

However I am guessing it might be C1140 Steering angle sensor (translated from Dutch). Had this too and was due to battery failure. I reset the codes and now comes back as C1142 ESP brake sensor.
From what I gathered on internet common ESP issues on these cars are due to faulty brake sensors (I picked a new one up for 9 euro's) , tyre pressure or bad alignment, and in more extreme cases the ESP computer or steering angle sensor

C230 Sport Coup

Yes. Easy fix. Check my previous posts, did I post on this already?
I'll try to find the info for you.
HAve you had the codes read with DAS yet?
I went for years with bad YAW sensor till I had the codes read with DAS and found out the it was the YAW sensor.

mlopez218

I tried turning the steering wheel three times each side but the error is still there

insame1

Pull the battery cables and let it sit about 15 min then reconnect and try the reset procedures again. You can find a walk through on the forum or google.