Question about 2003 Mercedes-Benz C-Class

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Banging inside dashboard

2003 C320--recently started, I have a banging in the ignition/steering wheel area on the dashboard everytime I start the car, it bangs about 8 times and stops. The car drives and steers fine. Any ideas what is going on??

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Most likely an ac system stepper motor armature is broken allowing it to turn round and round as it performs its self checks. This is a pretty involved repair (the dashboard and center console will be removed along with the support brace underneath) and is not recommended for anyone not trained. The good news is, it is not detrimental to the vehicle. Assuming of course, that this is indeed the problem.

Posted on Nov 13, 2008


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