2005 CITROEN C6 AUX

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ENGINE
CHECKING THE VALVE TIMING
Engine: DT17BTED4
Remove:
- The auxiliary drive belt (5)(see corresponding operation).
- The upper timing covers (6).
Position the camshaft pegging holes "a"and "b"at "c"and "d", 30° ± 5°forward of their pegging
holes "e"and "f".
NOTE:Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion
screw.
B1EP1J9DB1EP1JAD
Angl-C6-page022-82-2005 4/02/05 17:19 Page 59

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ENGINE
CHECKING THE VALVE TIMING
Engine: DT17BTED4
Remove the plug from the pegging hole on the cylinder block.
NOTE:Removing the particle filter and catalytic converter flexible pipe assembly facilitates removal
of the plug from the pegging hole and the positioning of the tool [2].
NOTE:Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion
screw.
Peg the crankshaft, using tool [2].
Peg the camshafts, using tools [3].
IMPERATIVE: If it is not possible to peg the camshafts, restart the setting of the valve timing
(see corresponding operation).
Remove the tools [2]and [3].
Refit the plug on the pegging hole on the cylinder block.
Refit:
- The upper timing covers (6).
- The auxiliary drive belt (5)(see corresponding operation).
Reclip the electrical harness.
Fit the venting chamber (1).
Remove the tools [1].
Reposition and connect the pipes (2)and (3).
Complete the refitting.
B1DP1MOCB1EP1JBD
Angl-C6-page022-82-2005 4/02/05 17:19 Page 60

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AIR
CONDITIONING
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Aircon circuit diagnosis table (for information)
Principal problem Symptom Possible causes
Aircon compressor clutch
Lack of aircon fluid in the aircon circuit
The clutch of the aircon compressor does not Aircon pressostat
engage, or disengages suddenly
Aircon evaporator sensor
The aircon compressor does not turn Electrical circuit (wiring, fuses, etc.)
or stops suddenly
Auxiliaries drive belt
Aircon compressor
The clutch of the aircon compressor remains Filtering and drying cartridge
engaged and stops suddenly
Aircon pressure reducer
Leak of aircon fluid
Aircon compressor clutch
Angl-C6-page203-217-2005 4/02/05 17:40 Page 212

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AIR
CONDITIONING
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Aircon circuit diagnosis table (for information)
Principal problem Symptom Possible causes
Incorrect adjustment of the aircon compressor
clutch
The clutch of the aircon compressor Aircon fluid quantity
remains engaged
Aircon compressor defective
The aircon compressor makes an abnormal Lack of aircon fluid in the aircon circuit
noiseAircon compressor valves defective
The clutch of the aircon compressor Aircon compressor clutch
remains engaged and slips
Auxiliaries drive belt
Angl-C6-page203-217-2005 4/02/05 17:40 Page 213