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    Mercedes A-Class Forum, Mercedes GLA Forum Thumping when accelerating from stop

    Wanted to offer some closure to anyone else stumbling on this thread. I want to thank everyone's input. I did indeed change the dif fluid and the noise has gone away completely. Something to check first if anyone else is experiencing similar symptoms.
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    Mercedes A-Class Forum, Mercedes GLA Forum Thumping when accelerating from stop

    Just in case anyone stumbles upon this. I went in to get a service B and have the car checked out some more since warmer weather was upon us and I was still skeptical on the noise. The technician pointed out in a report that the rear flex disc was cracked. Getting it replaced now but all the...
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    Mercedes A-Class Forum, Mercedes GLA Forum Thumping when accelerating from stop

    I ended up taking it to a Mercedes dealership to get diagnosed. They took a look but couldn't find out the noise concretely on the test drive. They let me ride with one of the technicians to point out the noise. I live about 2 hours from the nearest dealership and by the time I got there, the...
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    Mercedes A-Class Forum, Mercedes GLA Forum Thumping when accelerating from stop

    Hey I'm having a similar issue but the thumping noise goes away around the 20mph mark. Did you ever figure out the issue?


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