Causes of Idle-Running Performance

Causes of Idle-Running Performance

Unequal cylinder fill levels
- Eccentric shaft of the left and right cylinder banks do not work synchronously
- Unfavorable tolerance of the Valvetronic mechanism
- Wear in the Valvetronic mechanism
- Combustion chamber leak

Ignition problems
- Defective spark plugs
- Defective ignition coils

Fuel supply
- Defective fuel injectors

Body
- Tensions in the bracket of the drive train
- Defective engine mount