A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

Shuddering around 20-30MPH

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Old Jan 28, 2018 | 01:17 PM
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Default Shuddering around 20-30MPH

I have a 2000 A6 2.8 Quattro and just recently passed 175,000 miles.

Within the last few weeks I've noticed a slight shuddering in the car when I am around 20-30 MPH. If I release the accelerator, the shuddering seems to lessen or stop, and if I reapply the accelerator the shuddering doesn't immediately come back, but usually does. Outside of this speed range, there's pretty much nothing unusual. Definitely nothing at highway speeds, nor at very low speeds.

Any ideas what this may be? At first, I thought it was wheel or suspension problem. It started not too long after I had a flat repaired, and I wondered if the tire was mounted improperly, but that doesn't seem to be the case, especially after I realized the problem disappeared upon releasing the accelerator.

Thanks for any advice or insight anyone may have.
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Old Jan 28, 2018 | 01:19 PM
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BTDT, look for a ruptured rubber bushing around the driveshaft central bearing.
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Old Jan 28, 2018 | 01:24 PM
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Originally Posted by georgeb944
BTDT, look for a ruptured rubber bushing around the driveshaft central bearing.
Well that was quick. haha

Thanks. I'll see if I can get into my mechanic this week to get that looked at. Is this a dangerous (or, at least, "severely damaging") problem like I shouldn't drive the car or is it relatively safe to drive?
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Old Jan 28, 2018 | 01:54 PM
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Originally Posted by JagdPanther
Well that was quick. haha

Thanks. I'll see if I can get into my mechanic this week to get that looked at. Is this a dangerous (or, at least, "severely damaging") problem like I shouldn't drive the car or is it relatively safe to drive?
Not dangerous, just irritating. .. Don't buy a new one, get a good used one from a dismantler.
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Old Jan 29, 2018 | 03:38 PM
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Originally Posted by georgeb944
Not dangerous, just irritating. .. Don't buy a new one, get a good used one from a dismantler.
Good deal. Thanks for the info!

I go to an Audi/VW-only mechanic with a yard out back. They usually have good parts available right away.
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