See also:

Windscreen/tailgate wiper blades and arms - removal and refitting
Removal 1 Pull the wiper arm away from the glass until the arm locks. 2 Depress the small clip on the blade and slide the blade out of the hooked part of the arm (see illustration). 17.2 Disco ...

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 ...

Oil pump - dismantling, inspection and reassembly
Dismantling 1 The oil pump can be dismantled for cleaning, but if any of the components are worn, the pump must be renewed as an assembly. 2 To dismantle the pump, proceed as follows. 3 Unscrew ...