8-cyl. engines 4.2L (RS4)

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

Switch ignition off.

Right cylinder bank

Remove upper part of air filter → Air cleaner: Clean air filter housing and replace filter .

Fig 1: Identifying Bolts, Connector, And Ignition Coil

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove both bolts - 1 -.
Push connector - 2 - toward ignition coil, press on catch with hand and remove connector.
Remove ignition coil - 3 - from spark plug using Ignition Coil Puller T40039.
Remove spark plugs using spark plug wrench T40039.

Install new spark plugs.

Tightening torque	Nm
Spark plugs in cylinder head	30

NOTE:

Push ignition coils by hand into intended resources in cylinder head cover.

Left cylinder bank

Fig 2: Removing Coolant Hoses

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove coolant reservoir -arrow-.
Tie aside coolant reservoir with coolant hoses 1 to 3 connected.

Fig 3: Identifying Bolts, Connector, And Ignition Coil

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove both bolts - 1 -.
Push connector - 2 - toward ignition coil, press on catch with hand and remove connector.
Remove ignition coil - 3 - from spark plug using Ignition Coil Puller T40039.
Remove spark plugs using spark plug wrench T40039.

Install new spark plugs.

Tightening torque	Nm
Spark plugs in cylinder head	30

NOTE:

Push ignition coils by hand into intended resources in cylinder head cover.