My Audi is shaking when idling my mechanic has checked everything and nothings gone and the car would run so smoothly for him but after I drive the car for a while it starts shaking when idling my mechanic said it was caused by bad fuel. But I use good diesel so I don’t know what’s wrong with it. The day it was vibrating badly I put it onto the computer and it said an injector wasn’t running properly but by the time I brought it to the garage man it had stopped shaking and was running smoothly!
