2001 Audi A6 Quattro Q&A

2001 Audi A6 Quattro Question: car shaking when turned on

I think its a spark plug -
Answer 1
It might be, but unlikely unless the plugs haven't been replaced for over 30,000 miles. You shouldn't drive the car while it is misfiring, so try to diagnose which cylinder is misfiring and diagnose accordingly. -