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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 malfunction of the ignition coil.

Necessary preliminary work:
Remove corrosion protection cover


Unlock connector catch (1) for ignition coil (3) and pull off connector (2).
Slowly pull the ignition coil (3) up and out without jerking it.

Note: There is a possibility that the silicone tube will tear and therefore be destroyed.
This procedure is applicable to all ignition coils.


Mount the ignition coil (3) and gently press it to the stop, turning back and forth if necessary. Then check anti-twist lock.

The rubber cap must completely surround the sealing collar of the cylinder head cover.

Note: If rubber part is squashed, ignition coil (3) can slip out again during engine operation.

Push connector (2) with connector catch (1) open onto ignition coil (3).

Carefully close connector catch (1) in direction of arrow.

The connector catch must snap into place without great effort.

The connector must be positioned on the counter piece with hardly any gaps when the locking lever is being closed. In the process, the cheeks of the lever are positioned inside the counter piece.

Note: The locking lever can become deformed if it is not installed correctly. This means that there is no longer a safety lock on the plug connection. As a result, the connector can slip out during engine operation (loose contact, misfiring).