Ignition Coil: Service and Repair
Ignition Coils
Special tools, testers and auxiliary items required
• Ignition Coil Puller (T40039)
Remove the ignition coils from cylinder bank 1:
- Only remove the lower section of the air filter housing for cylinder 1 ignition coil. Refer to => [ Air Filter Housing, Lower Section ] Air Filter Housing, Lower Section.
- For cylinder 2 and 3 ignition coils, remove the air guide hose (open the hose clamp - 3 - and the clips - arrows -).
- Remove bolts from the ignition coil wiring harness.
- Release electrical connectors and remove connectors simultaneously from ignition coils.
- Remove ignition coils with Ignition Coil Puller (T40039) from spark plug shaft
Remove ignition coils from cylinder bank 2:
- Remove coolant reservoir - arrows -.
- Disconnect electrical connector to the engine coolant level warning switch (F66) on the bottom of the coolant reservoir and lay the reservoir aside with the coolant hoses - 1 and 2 - and - 3 - attached.
- Remove bolts - arrows -.
- Pull ignition coils approximately 30 mm out of the spark plug shaft using the Ignition Coil Puller (T40039).
- Release electrical connectors and remove connectors simultaneously from ignition coils.
Installing
- Insert all ignition coils loosely into spark plug shaft.
- Align the ignition coils to the connectors and then connect all of the connectors simultaneously onto the ignition coils.
- Press the ignition coils uniformly onto the spark plugs by hand (do not use an impact tool under any circumstances).
Further installation is performed in reverse order.
• Tightening specification, wiring for ignition coils to cylinder head cover: 5 Nm