- Running gear
- Engine
- Body
- Heating, Air conditioning
- Drive unit
- 1.9/96 TDI Engine, Mechanics
- 1.0/37; 1.4/44; 1.4/50 Drive Unit, Fuel injection
- 1.4/55; 1.4/59; 1.4/74 engine - fuel injection
- Self diagnosis, V.A.G Inspection Service
- Mixture preparation system, electronic inj.,Gas
- Repairing the injection system
- Testing components and functions
- Testing Intake manifold pressure sender G71
- Testing Intake manifold temperature sender G42/G72
- Check sender for coolant temperature G62
- Testing injection valves
- Test control
- Testing resistances of the injection valves
- Test spray pattern, leak tightness and injected quantity
- Testing jet formation and tightness
- Testing fuel injected quantity
- Inspecting Activated charcoal filter system solenoid valve 1 N80
- Testing Exhaust gas recirculation valve N18
- Testing the intake system for tightness (unmetered air)
- Testing intake manifold preheating
- Idle testing
- Testing the engine operating conditions
- Lambda control
- Electronic power control
- Engine control unit
- Testing auxiliary signals
- Ignition system, glow plug system
- 1.0/37; 1.4/44; 1.4/50 kW MPI engine
- Power transmission
- Vehicle electrics
- Heating, ventilation, air conditioning system
- Power unit