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Hi all, thanks for accepting me on this forum.

I own a 2012 Audi A6 C7 2.0tfsi, with 130 000kms on the clock.

I thoroughly enjoy the car, however have a current issue that needs support.

The vehicle vibrates/shudders on idle. I initially pickedup an error code which identified left bank lean.

I replaced the High Pressure Fuel Pump, cam follower, plugs,plug coils and upgraded to the latest pcv valve.

problem still persists without any error codes being active.
When driving, all is normal, it’s just at idlethat the idle is erratic and the car shudders.

I would appreciate any support from those more experienced with this defect on the forum.
 
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