Kenneth T

I have been experiencing this low sonic gurgling noise coming from the drive train/gearbox of my brand new A6 2.4 multitronic (C6) especially when I'm accelerating between 2000 to 3000 rpm range. Has anyone experienced this before and is there a solution available to eliminate it?

juhuuh

my 2.4MT don't have any low sonic gurgling noise when accelerating.
Seems to be something wrong, best is you complain at your dealer.

ACSGP

The agent has changed my multitronic gearbox once already at around 15,000km (there was a high pitched whine at crusing speed), but all the noises never went away.

Kenneth T

Thanks for sharing. What was the explanation given to you by the dealer? I called mine and am surprised that they have not had complaints from other A6 owners about the problem. If it's a CVT problem, it should affect all if not the majority of the new A6s.

ACSGP

The noise is more apparent in "S" than "D" under acceleration. I tend to drive quite aggressively, so it's there most of the time. The Multitronic sounds like a cruder device than the tip. I guess the AT has transmission fluid to damp out the noise.

Check if you can hear the whining noise while cruising - not apparent but irritating to me.