Audi Q7: Fuel Supply

 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

 Injection System

Component Location Overview - Injection System Locations Engine Compartment 1 - Crankcase Ventilation Shut-Off Valve -N548- 2 - EVAP Canister Purge Regulator Valve 1 -N80- 3 - Coolant Recirculation Pump -V50- Component location. Refer to → Fig. " Coolant Recir