Headlamps, Service Preparation
Headlamps, Service Preparation
The following equipment and engine-dependent procedures are required in order to replace certain headlamp bulbs.
Upper washer fluid reservoir and power steering fluid reservoir, removing and installing
Procedure
- Remove nut - 1 - and bolts - 4 - and - 5 -.
- Remove breather hose - 2 - from top section of washer fluid reservoir - 3 -.
- Remove top section of washer fluid reservoir and move power steering reservoir - 6 - to side with hydraulic hoses still attached.
Install in reverse order of removal, noting the following:
NOTE:
- Clean remnants of locking fluid from bolts using wire brush. Then apply locking fluid and fit bolts.
- Clean remnants of locking fluid from inside thread using a thread tap. Otherwise, bolts may break should they need to be removed again later.
Tightening torque
Component Nm
Top section of reservoir to body 5.5 Nm
Top section of reservoir and
power steering reservoir to body 18 Nm 1) 2)
1) Replace bolt.
2) Insert with locking compound.
Preparation - vehicles with 1.8L 4-cylinder Turbo engine
Procedure
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Disconnect electrical connections:
1. at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
2. at Mass Air Flow (MAF) Sensor G70
3. at Wastegate Bypass Regulator Valve N75
- Disconnect hoses - 4...7 -.
- Disconnect hose to secondary air pump.
- Set aside wiring.
- Release fastener - 8 -.
- Remove air cleaner housing.
NOTE: The vacuum line leading to combination valve for secondary air is clipped onto the underside of the air intake hose.
Install in reverse order of removal.
Preparation - vehicles with 2.0L 4-cylinder Turbo FSI engine
Procedure
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Remove air intake hose - 1 - between turbocharger and air cleaner housing.
- Disconnect electrical connection - 2 - at Mass Air Flow (MAF) Sensor G70.
- Pull off clip - 3 - and remove air cleaner housing together with Mass Air Flow (MAF) Sensor G70.
Install in reverse order of removal.
Preparation - vehicles with 3.0L 6-cylinder engine
Procedure
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Pull off lines and disconnect electrical connections:
1. at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
2. vacuum hose at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
3. at Mass Air Flow (MAF) Sensor G70
- Pull off hose connections, set aside hoses and remove air cleaner housing - arrows -.
NOTE: Disregard - 4 - and - 5 -.
Install in reverse order of removal.
Preparation - vehicles with 3.2L 6-cylinder FSI engine
Procedure
- Remove screws - arrows -.
- Remove air duct - 1 - and - 2 -.
- Release fastener - arrow -.
- Remove air cleaner housing.
Install in reverse order of removal.
Preparation - vehicles with 4.2L 8-cylinder engine (Audi S4)
Procedure
- Remove right engine cover - 1 -.
- Remove screws - arrows -.
- Remove Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80 - 1 - at air duct.
- Remove air duct - 2 -.
- Disconnect electrical connection - 2 - at Evaporative Emission (EVAP) Canister Purge Regulator Valve 1 N80
- Disconnect electrical connection - 3 - at Mass Air Low (MAF) Sensor G70.
- Disconnect hose - 1 - to secondary air pump.
- Remove air intake hose - 4 - at Mass Air Low (MAF) Sensor G70.
- Set aside wiring harness at air cleaner housing.
- Remove clip - arrow - and remove air cleaner housing together with Mass Air Low (MAF) Sensor G70.
Install in reverse order of removal.
Preparation - vehicles with 4.2L 8-cylinder FSI engine (Audi RS4)
Procedure
- Remove rear engine cover in direction of - arrows -.
- Remove screws - arrows -.
- Remove air duct - 1 - and - 2 -.
- Disconnect electrical connection - 4 - for Mass Air Flow (MAF) Sensor G70.
- Remove hose - 5 - to Secondary Air Injection (AIR) pump.
- Remove vacuum hoses - 1 -.
- Remove air guide hose - 3 - at Mass Air Flow (MAF) Sensor.
- Free up wiring harness at air filter housing.
- Remove screws - arrows - and remove upper part of air filter housing.
- Disengage electrical wiring harness bracket at body.
- Remove clip - arrow - and remove air filter housing with Mass Air Flow (MAF) sensor.
NOTE: Disregard item - 6 -.
Install in reverse order of removal.