DRC noise under normal operation

[johnnydog]

With the B7 DRC issues, when Audi finally accepted there was an issue, they replaced the faulty components even if the car was out of its 3 year warranty. Mine was done under warranty.
When I moved to a B8, it had exactly the same symptoms which for the first 12 months or so Audi didn't want to know saying it's was a 'characteristic sir'. A technician friend of mine then told me Audi had released a TPI for the DRC issues, and when this was waved under their nose, they replaced the two front shocks with the updated versions under warranty. It has been fine ever since.
As our cars are now well out of their manufacturers warranty, I can't say whether Audi have extended their replacement of it to vehicles out of warranty like they did with the B7.
Mine had a manufacturers 5 year warranty, which expired in January this year, which I extended for a further year. Whilst not cheap, it is peace of mind should any further issues with the mechanics rear their ugly head. I will probably be extending it again next year too.
There is plenty of info if you search about the trials and tribulations of owners battles to get it fixed which was assisted when this TPI was released.
There was certain criteria to be eligible for the updated shocks, depending on the 'cause' of the knock. Also, depending on how old your car is, the mileage now and whether it has full Audi history, and if you have been loyal to a dealer would, in my opinion, all be factors in whether you may get some goodwill at least from your Audi dealer. I'd try your dealer first before ringing Milton Keynes, bearing in mind that the last thing they want is a problem being escalated through Audi UK. You never know your luck......

[skirs6]

Thanks for the advice I’ll speak to my local Audi dealer as I have a good relationship with them especially after my C7 went pop 3 months after purchase

[johnnydog]

Basically, if the cause of the knock is low pressure due to a leak, either from the shock or the pipework etc, any warranty work done would have only see the faulty component replaced - if the shock itself was leaking then it would only be replaced with a standard shock. If it was dry, and no other component was causing the issue, then both fronts would be replaced with the uprated shocks. So in a nutshell, if there are no other issues or faults causing the knock, ie visible leaks or low pressure, then you would get the uprated shock to cure it.
Plus slight oil misting of the shock body is considered acceptable; a wet oil leak will get a standard shock. A dry shock with no other faults as the cause will get the uprated ones.
The uprated shocks are the same part number but suffixed with the letter 'A'.
I only know this having been through all the scenarios you can think of to get the work done on mine.
This also assumes that any work is done under warranty, but I guess the same still applies if the job was being paid for with goodwill or otherwise....