Preparation - vehicles with 4.2L 8-cylinder FSI engine (Audi RS4)

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Procedure

Fig 1: Pulling Rear Engine Cover Off

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Remove rear engine cover in direction of - arrows -.

Fig 2: Identifying Bolts & Air Duct

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Remove screws - arrows -.
Remove air duct - 1 - and - 2 -.

Fig 3: Identifying Mass Air Flow (MAF) Sensor G70 Electrical Harness Connector, Secondary Air Injection (Air) Pump Hose, Vacuum Lines & Air Guide Hose

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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 - 6 -.

Install in reverse order of removal.