C43 2017 Agressive Thud on Downshift


New Member
Oct 14, 2021
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Hi Everyone,
I'm beginning to experience an aggressive Thud from what sounds like either the gearbox, prop or diffs when slowing down and downshift gears are selecting. Doesn't happen all the time but more prominent when just starting out cold or when car has been left for a period of time. No warning lights etc.

Anyone have any ideas on what this might be?

Thanks in advance of your support.

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