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Hi Jon, having run just about every combination of discs and pads over the last million miles I can honestly say that Brembo are excellent, both discs and pads BUT the ATE discs will last longer as the carbon content is far higher, Bosch pads are very good used with the ATE/Brembo discs, most other brands Febi/Mintex/Delphi are good but tend to wear faster, if you re use the old bolts 20nm torque is about right as these are stretch bolts and ideally you would use new bolts but absent new bolts you wont want to put to much pressure on already stretched threads, most kits worth getting have new bolts and a wear sensor as if you don't replace the sensor yes the old one works but fails in a short space of time leaving you with a dash warning light, you can phone TPS but have a Defib unit handy, then do the sensible thing and go on parts in motion web site or eBay I have just bought genuine ATE front discs and a Bosch pad kit with sensor cable and new bolts for £170, its all there if you search and the rear discs and pads are always cheaper by about 40%. Steve.

Hi everyone,I bought my first A8 today and wanted to say hello to you guys and gals!It is a 2013 model and I drove it 90 miles back to my home in Belfast,Northern Ireland!Lovin it!Needs some bits and bobs done so looking forward to all your experiences with these cars!😁

Plus 1 for Brembo pads as a in progress trial on a family member’s non-Audi, which are impressing so far, compared with earlier main dealer pads. Plus 1 also for Parts in Motion, and I guess Steve has to spend with them more often than I do! - bless him. As we have both said before, P in M offer good-brand aftermarket parts at very competitive prices - never faulted their service so far. Nothing too critical Jon, but why ECP? Not trading on their ‘impressive’ % discounts on so called retail prices any more -? Possible additional source worth keeping an eye on is Simply Car Parts, trading on EBay, as P in M do. Seem efficiency and competitive. Kind regards, Gareth.

Could it be a broken exhaust rubber/hanger, loose exhaust heat shield, engine mount or gearbox mount or worn suspension arms?

Not heard of the c8 suffering from this. But can be a number of things from looking at previous A6 models such as blocked water drains allowing water in the cabin, leaking pollen filter housings, leaking sunroofs, leaking door or window seals.

Hi if you read the post in depth it tells you and shows you the box that he replaced on the turbo and has the added bonus of the part number. Steve.