Replacing the engine ventilation line of cylinders 5-8 (X5 M)

Attention! 

Ignition coils must not be fouled by fuel.

The resistance of the silicone hose 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 hose, which can lead to a failure of the ignition coil.

Necessary preliminary work: 

• Switch off the ignition
• Remove ACOUSTIC COVER .
• Remove PRESSURE ACCUMULATOR .

Removal: 

Vacuum reservoir, left.

Pull vacuum hoses off the vacuum reservoir.

Slacken nut (1).

Remove vacuum reservoir (2).

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Loosen screws (1).

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Unlock the engine ventilation line (1) at the locks (2).

Feed out the engine ventilation line (2) and remove.

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Installation: 

Insert and install the engine ventilation line (2).

Lock the engine ventilation line (1) at the locks (2).

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Tighten screws (1).

Tightening torque 11 15 1AZ .

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Required follow-up work: 

• INSTALL PRESSURE ACCUMULATOR .
• Install ACOUSTIC COVER .