Renault Clio: Diesel supply circuit: Operating diagram
K9K, and 750 or 752 or 766 or 768
Operating diagram of the diesel fuel supply circuit

The circuit comprises:
- a sender (1),
- a priming bulb (2),
- a fuel filter (3) that can be fitted with a water detection
sensor,
- a high pressure pump (4) with a built-in mechanical
low pressure pump (transfer pump),
- a fuel flow actuator (5),
- an injector rail (6) fitted with a diesel pressure sensor (7),
- four injectors (8),
- a venturi tube (9),
- a bleed screw (10),
- various sensors,
- an injection computer.
IMPORTANT
Loosening a high-pressure pipe union when the
engine is running is strictly prohibited.
WARNING
It is forbidden:
Only the flow actuator, the diesel fuel temperature
sensor and the venturi tube can be replaced.
K9K, and 764
Operating diagram of the diesel fuel supply circuit

The circuit comprises:
- a sender (1),
- a priming bulb (2),
- a fuel filter (3) which may be fitted with a water detection
sensor,
- a high pressure pump (4) with a built-in mechanical
low pressure pump (transfer pump),
- a pressure regulator (5), mounted on the high-pressure
pump,
- a flow regulator (6), mounted on the high-pressure
pump,
- an injector rail (7) fitted with a pressure sensor,
- a bleed screw (8),
- four injectors,
- various sensors,
- an injection computer.
IMPORTANT
Loosening a high pressure pipe union when the
engine is running is strictly prohibited.
WARNING
It is forbidden:
- to dismantle the interior of the pump or injectors.
- to remove the pressure sensor from the fuel rail
(because of circuit contamination problems). If the
pressure sensor fails, the pressure sensor, the rail
and the five high pressure pipes must be replaced,
- to dismantle the flow regulator solenoid and the
pressure regulator solenoid on the high-pressure
pump.
K9K, and 772
Operating diagram of the diesel fuel supply circuit

The circuit comprises:
- a pump - sender (1),
- a priming bulb (2),
- a fuel filter (3) that can be fitted with a water detection
sensor,
- a high pressure pump (4) with a built-in mechanical
low pressure pump (transfer pump),
- a pressure regulator (5) mounted on the high pressure
pump,
- a flow regulator (6) mounted on the high pressure
pump,
- an injector rail (7) fitted with a pressure sensor,
- a bleed screw (8),
- four injectors,
- various sensors,
- an injection computer,
- a particle filter injector fuel filter (9),
- a diesel injector (10) on the catalytic pre-converter,
- a diesel injector cooler (11),
- a catalytic pre-converter (12).
IMPORTANT
Loosening a high-pressure pipe union when the
engine is running is strictly prohibited.
WARNING
It is forbidden:
- to dismantle the interior of the pump or injectors.
- to remove the pressure sensor from the fuel rail
(because of circuit contamination problems). If the
pressure sensor fails, the pressure sensor, the rail
and the five high pressure pipes must be replaced,
- to dismantle the flow regulator solenoid valve and
the pressure regulator solenoid valve on the high
pressure pump.
READ NEXT:
K9K
REMOVAL
I - REMOVAL PREPARATION OPERATION
Remove:
the front right-hand wheel (see Wheel: Removal -
Refitting) (MR 392, 35A, Wheels and tyres),
the right-hand wheel arch liner (see Front wh
D4F, and 740 or 742 or 764
REMOVAL
I - REMOVAL PREPARATION OPERATION
Disconnect the battery (see Battery: Removal - Refitting).
Remove:
the air filter box (see 12A, Fuel mixture, Air filter unit:
D4F
CHECK
IMPORTANT
During this operation, be sure to:
be careful of fuel splashes when disconnecting
the union.
IMPORTANT
Wear goggles with side protectors for this operation.
IMPORTANT
Wear lat
SEE MORE:
I - MEASURING POINTS
Radius under load:
(R1) : Distance between the ground and the front
wheel shaft
(R2) : Distance between the ground and the rear
wheel shaft
1 - Front height (W1)
(W1) : Height between the ground and the rear cross
member bolt head
2 - Rear height (W2)
(W2) : Height be
K9K
IMPORTANT To avoid all risk of damage to the systems, apply the
safety and cleanliness instructions and operation recommendations before
carrying out any repair (see Vehicle: Precautions for the repair).
IMPORTANT Wear leaktight gloves (Nitrile type) for this operation.
REMOVAL
I - REMOVAL PR
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