Procedures

Spark Plugs, Removing and Installing

• Plug designation and torque specification => Engine Mechanical,
Fuel Injection and Ignition 28 General Information

• Observe waste disposal regulations!

Special tools, testers and auxiliary items required

• Spark plug wrench (3122B)





• Torque Wrench (V.A.G 1331/)





• Removal/installation tool (T10118)





• Puller (T10095 A)





• Puller (T40039)





• Spring type clip pliers (VAS 6499)





6-cylinder Gasoline

Removing

- Remove engine covers - 1 - and - 2 - upward





Unlock connector release:

- Insert Removal/installation tool (T10118) at the plug resting set - arrow - and carefully pull up, until the plug rest releases.





- Remove plugs - 1 through 6 - for ignition coils with power-output stages upward





• Before removing plugs, note installation position of ignition coils with power-output stages, if necessary, mark installation position of plugs

The straight side of the connector must fit to the straight side of the ignition coil with power output stage - arrow -.





- Push the Puller (T10095 A) from the straight connector side, in the direction of the - arrow -, on the ignition coil with power output stage





- Pull the ignition coil with power output stage up perpendicularly and out.





- Remove spark plugs using spark plug wrench (3122B).

Installing

- Screw in new spark plugs using spark plug wrench (3122B).





• Observe torque specification!

- Carefully insert ignition coils with power output stages on spark plugs by hand so that the straight connector sides fit to each other - arrows -.





- Install new spark plugs - 1 through 6 -





- Install engine covers - 1 - and - 2 -







8-cylinder Gasoline

Removing

- Remove oil dipstick.

- Remove bracket for left engine cover - 1 -.





- Remove bolts as well as retaining bolts for engine cover - arrows -.

Press connector catches - arrows - in direction of - arrow - and disconnect connectors - A - from ignition coils with power output stages.





• Before removing plugs, note installation position of ignition coils with power-output stages, if necessary, mark installation position of plugs

- Remove ignition coils with power-output stages using Puller (T40039) in direction of - arrow -.





- Remove spark plugs using spark plug wrench (3122B).





Installing

- Screw in new spark plugs using spark plug wrench (3122B).





• Observe torque specification! Refer to => Engine Mechanical,
Fuel Injection and Ignition 28 Specifications

- Install ignition coils with power output stages while lightly turning. They should noticeably engage.

- Re-connect connectors - A - so that they engage.





- Install left bracket for engine cover - 1 - and tighten it to 10 Nm.