CITROEN C6 2005 Manual PDF

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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: DT17BTED4
Reposition the timimg belt, strip «j»well tensioned, in the following order:
- Guide roller (19).
- Camshaft pulley (18).
- Guide roller (16).
- Camshaft pulley (23).
- Tensioner roller (20).
NOTE:If necessary, turn the pulleys (23)and (18)slightly anti-clockwise (the offset must not be
more than one tooth).
Remove the tool [4].
Using a hexagonal spanner, rotate the tensioner roller (20)anti-clockwise.
Position the index "l"facing the notch "k".
Tighten the screw (21) : 2,5 ± 0,2.
Remove the screws (15)and (17)from the pulleys (23)and (18)in order to check that the screws
(15)and (17)are not at the end of slots.
IMPERATIVE: If the screws (15) and (17) are at the end of slots, restart the operations to refit
the timing belt.
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: DT17BTED4
Tighten the screws (15)and (17) : 2,2 ± 0,2.
Remove tools [2]and [3].
Rotate the crankshaft 8 times
in the normal direction of rotation.
Fit the tool [2].
Peg the camshafts using tools [3], at "h"and "g".
NOTE:If it is not possible to refit the tools [3], slacken the screws (15)and/or (17)of the camshafts
and drive the camshafts by means of their central screws (25)and/or (26).
Peg the camshafts using tools [3], at "h"and "g".
Tighten the screws (15)and (17) : 2,2 ± 0,2.
Remove tools [2]and [3].
Rotate the crankshaft 8 timesin the normal direction of rotation.
Fit the tool [2].
Fit the tools [3], at "h"and "g".
Check that the index "l"of the tensioner roller (20)is facing the notch "k".
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ENGINE
CHECKING AND SETTING THE VALVE TIMING
Engine: DT17BTED4
Remove tools [2]and [3].
Refit: The lower timing cover (10), the upper timing covers (11), the crankshaft pulley (9), the engine
support (12), the coolant pump pulley (13), the accessories drive belt (8)(see corresponding operation),
the engine support (4)on the chassis member, the upper RH engine support (5) and the upper RH
engine support tie bar.
Take away the workshop hoist.
Remove the tool [6].
Refit the "Swirl"electrovalve (7)with its support, the header tank (1), the electrical harness.
Remove the tool [1].
Reposition and couple the pipes (3)and (2).
Complete the refitting.
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ENGINE
EXHAUST SPECIFICATIONS1Upstream oxygen sensor (rear)
2Downstream oxygen sensor (rear)
3Downstream oxygen (front)4,7 ± 0,54Upstream oxygen sensor (front)
5Precatalyser (rear)3,5 ± 0,56Precatalyser (front)7Resonator8Catalytic converter9Rear silencer10Clips2,6 ± 0,3 Engine: ES9A
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ENGINE
EXHAUST SPECIFICATIONS
Engine: ES9A
Repair.
Respect the precautions to be taken prior to any operation:
- The front flexible pipe must be protected against any external mechanical damage.
- The front flexible pipe must not come into contact with corrosive products.
- Do not deform the front flexible pipe more than 20°angular (X), 20 mm axial, 25 mm shearing
(Y)(front flexible pipe removed).
- Do not deform the front flexible pipe more than 3°angular (X), 0 mm axial, 3 mm shearing (Y)
(front flexible pipe in place).
WARNING: Non-respect of these precautions will shorten the life of the flexible pipe.
It is therefore imperative to disconnect or remove the exhaust line for any operations
necessitating lifting of the engine-gearbox.
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ENGINE
EXHAUST SPECIFICATIONS
(1) (2) (3) (4) (5) (6)
Engine versions Clip Particle filter Intermediate pipe Exhaust Rear Front
silencer precatalyser precatalyser
UHZ TR PSA F016 TR PSA K330 PSA 4234 TR PSA K311 TR PSA K310Engine: DT17BTED4
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ENGINE
71
EXHAUST SPECIFICATIONS
Engine: DT17BTED4
Repair.
Respect the precautions to be taken prior to any operation:
- The front flexible pipe must be protected against any external mechanical damage.
- The front flexible pipe must not come into contact with corrosive products.
- Do not deform the front flexible pipe more than 20°angular (X), 20 mm axial, 25 mm shearing
(Y) (front flexible pipe removed).
- Do not deform the front flexible pipe more than 3°angular (X), 0 mm axial, 3 mm shearing (Y)
(front flexible pipe in place).
WARNING: Non-respect of these precautions will shorten the life of the flexible pipe.
It is therefore imperative to disconnect or remove the exhaust line for any operations
necessitating lifting of the engine-gearbox.
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ENGINE
TIGHTENING TORQUES - EXHAUST LINE
1Clip2,6 ± 0,4
2Particle filter hangers
3Intermediate pipe hangers0,8 ± 0,14Silencer hangers5Rear precatalyser screw2 ± 0,36Front precatalyser screw2 ± 0,3 Engine: DT17BTED4
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ENGINE
73
COOLING SYSTEM SPECIFICATIONS
Engine type
Capacity
Radiator surface
Pressurisation
Opening of thermostatic regulator
Cooling fan
1st speed
2nd speed
3rd speed
Air con cut-off
Alert
Post cooling
Marking
Information
Sensor
Colour of connector
Tightening (m.daN)
Engines: ES9A - DTE17BTED4
3.0i 24S 2,7 24V
XFV UHZ
11,3 13,2
27 dm
2
1,4 bar
78°C 83°C
1 x 600 W 2 x 150W
FRIC function 97°C or aircon in operation
105°C 101°C or 17 bars in the aircon circuit
105° or 30 bars in the aircon circuit
115°C or 30 bars in the aircon circuit
118°C
6 minutes
11 6
Level of coolant Temperature of coolant Temperature, diesel injection, alert, aircon
Resistance Thermostat Thermostat
Black Blue Grey
1,7 ± 0,4
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ENGINE
COOLING SYSTEM SPECIFICATIONS
Engine: ES9A
(1)Heater matrix
(2)Bleed screw
(3)Coolant outlet housing
(4)Coolant inlet housing
(5)Thermostat
(6)Coolant temperature sensor
(7) Coolant/oil heat exchanger (engine)
(8)Cooling radiator drain plug
(9)Coolant/oil heat exchanger (automatic gearbox)
(10)Engine cooling radiator
(11)Coolant level sensor
(12)Header tank
(13) Venting chamber
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