11 15 002 Replacing engine crankcase ventilation line for cylinders 1-4

Necessary preliminary work: 

• Remove AIR INTAKE SILENCER HOUSING on right side.

Release clamp (1).

Tightening torque: 13 71 8AZ .

Bend the charge air pipe (2) slightly to the side.

Check the gasket on the exhaust turbocharger. replacing if necessary.

Fig 1: Identifying Charge Air Pipe & Clamp

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Version 1: 

1. Unlock the retainer.
2. Pull off the retainer together with the line.
   Fig 2: Pulling Off Retainer Together With Line

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Version 2: 

Pull the line (1) gently in the direction indicated by the arrow.

At the same time, use a screwdriver (3) to unlock the latch mechanisms (2) one after the other.

Pull the connecting line off the clean air pipe and engine crankcase ventilation line.

Fig 3: Pulling Connecting Line Off Clean Air Pipe And Engine Crankcase Ventilation Line

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Release screw (1).

Tightening torque: 13 71 1AZ .

Pull clean air pipe (2) from exhaust turbocharger.

Fig 4: Identifying Air Pipe On Exhaust Turbocharger

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Release screws (1).

Remove oil filler neck.

Fig 5: Identifying Oil Filler Neck Screws

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1. Unlock the retainer.
2. Pull off the retainer together with the line.
   Fig 6: Pulling Off Retainer Together With Line

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Version 1: 

1. Unlock the retainer.
2. Pull off the retainer together with the line.
   Fig 7: Pulling Off Retainer Together With Line

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Version 2: 

Pull the line (1) gently in the direction indicated by the arrow.

At the same time, use a screwdriver (3) to unlock the latch mechanisms (2) one after the other.

Pull the connecting line off the clean air pipe and engine crankcase ventilation line.

Fig 8: Pulling Connecting Line Off Air Pipe And Engine Crankcase Ventilation Line

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Release screws (1).

Tightening torque: 12 51 2AZ .

Lift the engine wiring harness (2) slightly and remove the crankcase ventilation line.

Fig 9: Identifying Engine Wiring Harness And Screws

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