Fan belt noise

Discussion in 'A-Class' started by Mark Grayson, Sep 12, 2016.

  1. Mark Grayson

    Mark Grayson New Member

    I just came back home after a long trip and discovered that the fan belt is making noises and the car is showing a 4matic failure error. What should I do?
  2. Jonathan Bell

    Jonathan Bell New Member

    The battery usually loses power when it has been a very long time after starting the car. This may lead to the generator trying to push more current and thus causing the noise. The 4matic failure error should also go away when the battery is fully charged.

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