Audi a6 starts like a tire lock.

It is caused by low oil pressure or wear of the hydraulic tappet itself.

1. Air enters the hydraulic tappet due to low oil pressure or wear of the hydraulic tappet itself.

2. The valve rocker arm is worn, resulting in excessive valve clearance.

3. Due to the continuous accumulation of sludge and carbon deposits, the throttle valve is too dirty.

4. Working sound of carbon canister solenoid valve This is a normal sound. If the noise is too loud, it is recommended to go to the 4S shop to check it.