Ignition Coil: Service and Repair

Ignition Coils

Special tools, testers and auxiliary items required

• Puller (T40039)

Removing

- Remove front engine cover - arrows -.





- Remove rear engine cover - arrows -.





Cylinder Bank 1 (Right)

- Remove bolts - arrows -.





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

- Disconnect check valve - 1 - from air duct hose.





- Remove air duct hose, thereby loosening hose clamp - 2 - and opening clips - arrows -.

- Disconnect electrical connectors at Engine Coolant Temperature (ECT) sensor (G62) - 1 - and Intake manifold flap change over valve (N239) - 2 -.





• Ignore - 3 -.

- Disconnect electrical harness connectors.





1. Camshaft adjustment valve 1 (exhaust) (N318)

2. Camshaft adjustment valve 1 (N205)

3. Camshaft Position (CMP) sensor (G40)

4. Intake manifold runner position sensor (G336)

5. Camshaft Position (CMP) sensor 3 (G300)

- Remove bolts - arrows - and disconnect electrical connections at ignition coils.

- Set electrical wiring harness aside.

Cylinder Bank 2 (Left)





- Remove coolant expansion tank - arrow -.

- Disconnect electrical connection from Engine Coolant Level (ECL) warning switch (F66) at bottom of coolant reservoir and set aside coolant reservoir with coolant hoses - 1 - and - 2 - connected.

- Disconnect electrical connectors at Intake Manifold Tuning (IMT) valve position sensor (G513) - 1 - and at high pressure pump - 2 -.





- Disconnect electrical harness connectors.





1. Camshaft Position (CMP) sensor 2 (G163)

2. Camshaft adjustment valve 2 (N208)

3. Camshaft adjustment valve 2 (exhaust) (N319)

4. Camshaft Position (CMP) sensor 4 (G301)

- Remove bolts - arrows - and disconnect electrical connections at ignition coils.

- Set electrical wiring harness aside.

Continuation for Both Sides

- Remove ignition coils using ignition coil puller (T40039).





Installing

Installation is in reverse order of removal.