Audi Q7: Starting and driving

 Pistons and Connecting Rod

Overview - Pistons and Connecting Rod   Note Lubricate all bearing and contact surfaces when assembling. Oil spray jet for piston cooling. Refer to → Fig. "Oil Spray Jet for Piston Cooling". 1 - Bolts 50 Nm +90º Replace after removing Use old bolts for the radial cle

 Compressor Magnetic Clutch - N421-, Checking

General Description The supercharger Compressor Magnetic Clutch -N421- is controlled by the engine control module (ECM) as required, i.e. the clutch is only engaged when high engine output is requested. The Compressor Magnetic Clutch -N421- is engaged and forms a frictional connection between th