Ignition coils, removing and installing

WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

Fig 1: Identifying Ignition Coil Puller T40039

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Puller T40039

Removing

Fig 2: Identifying Front Engine Cover

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Remove front engine cover - arrows -.

Fig 3: Removing Rear Engine Cover

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Remove rear engine cover - arrows -.

Cylinder bank 1 (right):

Fig 4: Identifying Bolts & Air Duct

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

Fig 5: Disconnecting Check Valve From Connection At Air Duct Hose

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Disconnect check valve - 1 - from air duct hose.
Remove air duct hose, thereby loosening hose clamp - 2 - and opening clips - arrows -.

Fig 6: Disconnecting Electrical Connectors At Engine Coolant Temperature (ECT) Sensor G62 And Intake Manifold Flap Change-Over Valve N239

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Disconnect electrical connectors at Engine Coolant Temperature (ECT) Sensor G62 - 1 - and Intake Manifold Flap Change-over Valve N239 - 2 -.

NOTE:

Ignore - 3 -.

Fig 7: Disconnecting Electrical Harness Connectors

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Disconnect electrical harness connectors.

Camshaft Adjustment Valve 1 (exhaust) N318
Camshaft Adjustment Valve 1 N205
Camshaft Position (CMP) sensor G40
Intake Manifold Runner Position Sensor G336
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):

Fig 8: Removing Coolant Hoses At Coolant Expansion Tank

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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.

Fig 9: Disconnecting Electrical Connectors On Intake Manifold Tuning (IMT) Valve Position Sensor G513

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Disconnect electrical connectors on Intake Manifold Tuning (IMT) Valve Position Sensor G513 - 1 -.

NOTE:

Ignore - 2 -.

Fig 10: Disconnecting Electrical Harness Connectors

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect electrical harness connectors.

Camshaft position (CMP) sensor 2 G163
Camshaft Adjustment Valve 2 N208
Camshaft Adjustment Valve 2 (exhaust) N319
Camshaft position (CMP) sensor 4 G301

Remove bolts - arrows - and disconnect electrical connections at ignition coils.
Set electrical wiring harness aside.

Continued for both sides:

Fig 11: Removing Ignition Coils Using Ignition Coil Puller T40039

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove ignition coils using ignition coil puller T40039.

Installing

Installation is in reverse order of removal.