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Thread: Esp faulty

  1. #1

    Default Esp faulty

    Hi guys today on my vts which I have just recently got my esp light came on and said info faulty esp/ ars system when I turned of the car and started back it up it went away anyone know what this is it might be and have my mot in 4 months will it affect that and is it a expensive repair thanks .

  2. #2
    C2 Addict Advanced Poster ozVTR is on a distinguished road ozVTR's Avatar
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    Common failure mode for ABS/ESP this time of year is mud and/or rust build up on wheel sensors. Try pressure washing in behind the wheels. Failure could be any of a dozen faults but I'd start with that one.

  3. #3
    Member Regular Poster wurlycorner is on a distinguished road
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    Agree with the suggestion on where to start (and to start with cleaning) but pressure washing around a wheel bearing isn't a great idea tbh...
    A bit of gentle cleaning by hand would be better

  4. #4

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    whats the name of the sensor should it need replacing, also, how easy/difficult is it to fit?
    step up to red alert!!!!

  5. #5
    C2 Addict Advanced Poster ozVTR is on a distinguished road ozVTR's Avatar
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    They are typically called the ABS wheel sensor.
    There is one located at each wheel hub and they are only held on by one bolt.
    Pull the sensor out and inspect the end for rust, damage/cracking of the plastic case. Look in the hole that the sensor sat in and down the bottom you should see something that looks like teeth on a gear. This is called the reluctor ring. Inspect it for mud, dirt build up or bad corrosion (light rust is OK). Follow the electrical cable back to the connector, disconnect the two halves and inspect for corrosion on the metal contacts. Inspect the cable for damage.

    BTW the hubs have oil seals to protect the bearings from foreign object ingress which includes water. I would find it very difficult to "gently" remove some of the gunk found on the ABS reluctor rings. If they are badly corroded they will need to be replaced.
    Once again snow, slush, mud and particularly salting of the roads destroys electronic components!

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