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. Locking fluid Parts Catalog .
- 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
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; locking compound Parts Catalog .
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.