12 13 511 Replacing ignition coils (B38, B46, B48)

Attention! 

Ignition coils must not be contaminated by fuel.

The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail!

The silicone tube of the spark plug connector is coated with talc to reduce the pulling forces. The silicone tube must NOT be oiled or greased. This would greatly reduce the durability of the silicone material, which can lead to a failure of the ignition coil.

Necessary preliminary work: 

• Remove ACOUSTIC COVER

Removal: 

Remove sound insulation from high pressure pump.

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Unlock connector (1) and pull off from ignition coil (3).

Release screw (2).

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Remove ignition coil (1) upwards.

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Installation: 

Slide on ignition coil (1) back onto spark plug.

Make sure ignition coil is correctly fitted.

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Slide on connector (1) back onto ignition coil (3).

Connector (1) must engage audibly.

Tighten screw (2).

Tightening torque 12 12 1AZ .

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Required follow-up work: 

• Install ACOUSTIC COVER