ESP keeps cutting power
Thread Starter
Newbie
Joined: Jan 2013
Posts: 2
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1999 c43 amg
ESP keeps cutting power
So I had this strange thing start happening a few days back. When I am driving and make slight left turns around a long bend or something, the traction light starts flashing and cuts the power, i have to lift off and re-apply power, if it's a long sweeping turn when i lift off and accelerate again, same thing, its only until i straighten the wheel before it stops. If i turn ESP off, the light doesn't even blink at all around left turns. Is there a sensor that detects wheel spin somewhere? Any help is appreciated, and I should add, I am definitely not losing traction.
Thread Starter
Newbie
Joined: Jan 2013
Posts: 2
Likes: 0
1999 c43 amg
Yes, stock wheels, stock tire size. I noticed my front driver side tire was a little low so i filled them all to 32 psi, it seems to have been doing it less, but still there nonetheless. May just be in my head. Where are all these sensors located? I've been under there and just don't see where they would be.
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Joined: Jan 2007
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From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
Have you had a wheel alignment recently?
Is the steering wheel straight when driving in straight line or is it off-centre?
Sounds like the steering angle sensor isn't in the straight ahead position causing it to think it's understeering on sweeping left hand bends and ESP is intervening. Most commonly caused by a steering wheel not being refitted in the straight ahead position relative to the steering column or a poor wheel alignment.
The lateral and turn rate sensor may be faulty, but it's very unusual that they would only be slightly out of spec to the point of giving symptoms but not enough to trigger the warning light.
I've also seen 1 car with worn rear control arms (thrust arms) do the same thing, but it was noticeable that something was wrong in a straight line too.
Is the steering wheel straight when driving in straight line or is it off-centre?
Sounds like the steering angle sensor isn't in the straight ahead position causing it to think it's understeering on sweeping left hand bends and ESP is intervening. Most commonly caused by a steering wheel not being refitted in the straight ahead position relative to the steering column or a poor wheel alignment.
The lateral and turn rate sensor may be faulty, but it's very unusual that they would only be slightly out of spec to the point of giving symptoms but not enough to trigger the warning light.
I've also seen 1 car with worn rear control arms (thrust arms) do the same thing, but it was noticeable that something was wrong in a straight line too.
Last edited by Ausmbtech; Dec 29, 2013 at 09:08 PM.
