See also:

Crankcase ventilation system check (Every 12 000 miles (20 000 km) or 12 months)
1 Inspect the crankcase ventilation system for blockage or damage. A blocked hose can cause a build-up of crankcase pressure, which in turn can cause oil leaks (see illustration). 35.1 Loosenin ...

Engine coolant renewal (Every 36 000 miles (60 000 km) or 3 years)
Caution: Before proceeding, note the precautions given in Chapter 3, Section 1. 1 Disconnect the battery negative lead. 2 It is preferable to drain the cooling system with the engine cold. If thi ...

Turbocharger- removal and refitting
Note: New gaskets and new tabwashers must be used on refitting. Removal 1 Disconnect the battery negative lead. 2 Disconnect the turbocharger inlet and outlet air hoses and the hoses from the was ...