Panamera S (970) V8-4.8L (2010)
1. Using chalk, mark the drive belt in the area around the tensioning roller.
Marking on drive belt
2. Turn engine at the vibration damper in the rolling direction using a socket wrench until the chalk mark is at the same place again. While turning at
the crankshaft, check the drive belt at the deflection rollers for signs of damage.
3. When turning the engine, check deflection rollers for smooth operation, intact running track and play. Replace noisy and damaged rollers.
Subsequent work
1. Install intake pipe (Y-shaped pipe) upstream of throttle valve.