Engine and peripherals
Crankcase ventilation (oil vapour recirculation)
In this manual: Engine and peripherals
14steps
~84min
3/5difficulty
Done 0 of 14
D7F engine
CIRCUIT DESCRIPTION

- Rocker cover
- Manifold
- Oil vapour return line connected upstream of the throttle body (this circuit is used at medium and high loads).
- Oil vapour return line connected downstream of the throttle body.
- Air hose
- Throttle body
CHECKING
To ensure the emissions control system works properly, the oil vapour return circuit must be kept clean and in good condition.

E7J Engine
CIRCUIT DESCRIPTION

- Cylinder head
- Manifold
- Oil vapour return line connected upstream of the throttle body (this circuit is used at medium and high loads).
- Oil vapour return line connected downstream of the throttle body.
CHECKING
To ensure the emissions control system works properly, the oil vapour return circuit must be kept clean and in good condition.
F8Q engine

- Engine
- Oil separator
- Air filter
- Intake manifold
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