Diesel temperature sensor

K9K

Before any work on the injection system, use the diagnostic tool to check:

• that the injection rail is no longer under pressure,
• that the fuel temperature is not high.

• Always observe the safety and cleanliness instructions given in this document during every operation.
• Never loosen a high-pressure pipe connection while the engine is running.

• Use the special plug kit for the high-pressure injection circuit.
• Always replace any high-pressure pipe and the high-pressure pipe clips that were removed.

REMOVAL

• Disconnect the battery.
• Remove the engine covers.

• Disconnect the air intake duct (1).

• Disconnect:

• the glow plugs for cylinders no. 3 and 4,
• the injectors (2) for cylinders no. 3 and 4,
• the diesel temperature sensor connector (3).

• Remove the diesel temperature sensor (4).
• Fit plugs to the openings.

INSTALLATION

Remove the protective plugs only at the last moment, for each component.

• Lubricate the O-ring with the lubricant contained in the sachet supplied with the new part.

CAUTION: Do not damage the O-ring when refitting.

• Install the diesel temperature sensor.
• Tighten the diesel temperature sensor to torque (1.5 daN.m +/- 0.15).
• Reconnect the electrical connector.

Connect the battery; carry out the necessary re-learns (see Electrical Equipment chapter).

Check for diesel leaks:

• check the seal after the repair (Diesel Injection chapter, High-pressure pipe: Sealing check, page 13B-48),
• run the engine at idle until the radiator fan starts,
• rev the engine several times with no load,
• carry out a road test,
• switch off the ignition,
• check that no diesel is leaking.