I am having running issues on my 2015 Audi a6 2.0 TDI avant 122,000 miles. 190ps ultra. Manual transmission. Car has been scanned with VCDD no DTC/fault codes or engine management lights. To explain: when I drive in 1st, 2nd and 3rd fully smooth through rev range whether I accelerate slowly or floor it. 4th is a bit intermittent until higher revs 3000+, 5th and 6th I get shaking and vibrating but also feels like it effects power. When I accelerate slowly at half throttle it’s not as bad or prominent but if I floor it in 5th/6th for acceleration anything about 1500 revs it’s a shudder acceleration (not like a flywheel failure) but more like you were going on and off throttle every second until revs increase. recently had wheel bearings changed and drive shafts so not related to that, tyres are new, intake to turbo pipe has been replaced, new air filter and no obvious blockages. MAF sensor showing as measuring correctly with no faults. It’s as if something is struggling (air/fuel) but no fault codes and I can’t get my head around it. any suggestions or advice?

Hi not wishing to appear stupid but is the pump the right way round as it should have a flow arrow on it. Steve.

Shut off timer showing car was shut off 11561s….3.2 hours….definitely was not!

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Running issues A6 2.0 TDI Ultra

By Davidacarrick,
May 22, 2024 in Audi A6 (C7) Forum

Go to solution Solved by Stevey Y, May 26, 2024

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