rumbling noise

[asad shabir]

owner of a 2011 audi a6 C7 3.0tdi quatto

I am experiancing an intermittant fault whereby on occasion i hear a rumbling noise from the car.

Not sure what triggers it, but it comes and goes on it own accord.

I have no gearbox fault codes, no cluth slip, no feeling of vibrations or any juddering.

The car changes gears smoothly, and I have never had any warning messages on dash.

Stronic service was carried out March 2022 by Audi @96,000 miles.

DMF was changed last month prior to it making this noise.

I have had the car looked underneath by a local indy but he cant seem to find the cause.

anyone have any ideas please before i send it into the stealers.

i have a link to the video on youtube

- YouTube

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youtube.com

 

[Cantata]

I thought I had the same problem in mine when away on holiday a while ago. Eventually I realised there was nothing wrong at all, I was simply hearing different road noise from unfamiliar surfaces. Like yours. the noise came and went, and for me that was down to the road surface changing.

 

[asad shabir]

Thanks for the response @Cantata but mine is definitely not related to road surface. I drive on the same roads daily and it does it at various different points regardless of road surface.
In the video I attached im only travelling at approx 6-7mph

 

[asad shabir]

SOLVED: loose bracket causing exhaust to vibrate when DMF was done.