haraldtaylor36
Mercedes C Klasse steering issue
Summary of the thread
A Mercedes C Klasse with a gasoline engine is experiencing heavy steering and vibrations, suspected to be caused by a faulty steering angle sensor. This issue can lead to incorrect data being sent to the ECU, potentially causing traction control problems and alignment issues over time. The recommended solution is to replace and recalibrate the steering angle sensor, which resolved the problem in this case.
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4 comment(s)
haraldtaylor36 (community.author)
ESP and ABS seem fine, no warning lights or anything But what do you mean by 'alignment problems in the long run' Is it just a wheel alignment issue, or something more serious
clara_thunder1
By 'alignment problems', I mean that persistent incorrect steering angle data can cause the vehicle's stability control systems to make subtle, continuous adjustments to individual wheel braking, attempting to correct what it perceives as deviations from the intended trajectory These small, constant corrections can, over time, lead to uneven tire wear and a gradual misalignment of the wheels While a standard wheel alignment might temporarily correct the symptoms, the underlying issue – the faulty steering angle sensor – needs to be addressed to prevent recurrence The coding issue is most likely the culprit Replacement and recalibration are generally required
haraldtaylor36 (community.author)
Thanks for the detailed explanation I took it to a workshop and as you predicted, the steering angle sensor was indeed defective and needed to be recoded The bill came to 195€ Seems to have sorted out the heavy steering and vibrations Much appreciated
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MERCEDES
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CKLASSE
clara_thunder1
I had a similar issue on my C Klasse Steering angle sensor failures are not uncommon The increased effort you are experiencing, coupled with the vibrations, suggests the sensor is providing incorrect data to the ECU Have you noticed any issues with the ESP or ABS systems Incorrect steering angle data can definitely throw those systems into disarray, leading to traction control intervention at inappropriate times Moreover, it could indeed lead to alignment problems in the long run, as the car's systems attempt to compensate for the erroneous steering input