- Running gear
- Body
- Engine
- Vehicle electrics
- Power transmission
- Heating, ventilation, air conditioning
- Power unit
- Simos injection and ignition system
- Motronic injection and ignition system (5-cyl. engine)
- Motronic injection and ignition system (2.0 ltr. engine)
- 6-cylinder injection engine
- 4-cylinder injection engine (direct injection)
- 4-cyl. injection engine (natural gas)
- 4cyl. Injection Engine, (2.0 ltr. Engine) (Mexico)
- 4-cylinder injection engine (1.6 l roller rocker finger)
- 4-cylinder injection engine (1.6 l engine, roller rocker fingers), Mechanics
- 4-cylinder injection engine (5-valve)
- 4-cylinder diesel engine with unit injector
- Direct injection and preglow system with distributor-type pump to 04.99
- Direct injection and glow plug system with distributor pump as of 05.99
- Self diagnosis, V.A.G Inspection Service
- Fuel preparation system Diesel injection
- Repairing diesel direct injection system
- Checking components and functions
- Checking voltage supply for diesel direct injection system
- Checking engine speed sender G28
- Checking intake manifold pressure sender G71 and altitude sender F96
- Checking coolant temperature sender G62
- Checking intake manifold temperature sender G72
- Checking fuel temperature sender G81
- Checking modulating piston movement sender G149 and metering adjuster N146
- Checking needle lift sender G80
- Checking injection timing control range
- Checking air mass meter G70
- Checking intake manifold flap change-over
- Checking intake manifold flap motor V157
- Checking additional signals
- Renewing, coding and matching engine control unit
- Ignition system, glow plug system
- 5-cylinder injection engine, mechanics
- 4-cylinder diesel engine, mechanics
- 4-cylinder injection engine (1.4 l and 1.6 l engine)
- Heating, ventilation, air conditioning system