2005 Citroen C4 thermostat

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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head1 Inlet air pressure sensor 0,8 ± 0,12 Motorised butterfly housing fixing screws 0,7 ± 0,13 Inlet manifold nuts 0,8 ± 0,24 Valve cover screws (*) 0,9 ± 0,15 Coolant outlet housing screw 0,8 ± 0,26 Thermostat fixing screw 0,8 ± 0,27 Oxygen sensor 4,7 ± 0,7
Catalytic converter fixing nuts (*)
8Pre-tightening1,8 ± 0,3
Tightening4 ± 0,4
Check the tightening4 ± 0,49 Exhaust manifold nuts 2,3 ± 0,510 Exhaust manifold fixing stud 0,8 ± 0,111 Lubrication plug 1,5 ± 0,2
Cylinder head bolts (*)
12Tightening2 ± 0,2
Angular tightening260° ± 5°13 Camshaft bearing cap screws (*) 0,9 ± 0,114 Inlet manifold fixing stud 0,8 ± 0,115 Engine coolant temperature sensor (CMM) 1,7 ± 0,116 Engine coolant temperature sensor (instrument panel) 1,7 ± 0,1
17 Sparking plugs 3 ± 0,1
Engine: NFU
B1BP362P
(*) = IMPERATIVE: Respect the tightening sequence (see following page).
C4
Angl.-t2-page040-134-2005 9/01/06 10:11 Page 55

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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Valve cover screws (*)
1Pre-tightening0,5
Tightening1,1 ± 0,1
2 Exhaust manifold stud 0,7 ± 0,1
Exhaust manifold nuts
3Tightening on heat shield2,5 ± 0,2
Tightening apart from on heat shield3,5 ± 0,3
4 Oxygen sensor 4,7 ± 0,5
5 Coolant outlet housing fixing (BSE)
Tightening of the nuts1 ± 0,2
Tightening of the screws1 ± 0,1
6 Thermostat fixing screw 0,8 ± 0,1
7 Coolant outlet housing fixing stud (BSE) 0,3 ± 0,1
8 Engine coolant temperature sensor 1,7 ± 0,1
9 Inlet manifold screws 2,2 ± 0,4
10 Motorised butterfly housing fixing screws 0,8 ± 0,1
Engine: RFN
B1BP34MP
(*) = IMPERATIVE: Respect the tightening sequence (see following page).
C4
Angl.-t2-page040-134-2005 9/01/06 10:11 Page 76

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ENGINESPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
1 Exhaust manifold stud 0,7 ± 0,1
Exhaust manifold nuts
2Tightening on heat shield2,5 ± 0,2
Tightening apart from on heat shield3,5 ± 0,3
3 Oxygen sensor 4,7 ± 0,5
Coolant outlet housing fixing
4Tightening of the nuts1 ± 0,2
Tightening of the screws1 ± 0,1
5 Thermostat fixing screw 0,8 ± 0,1
6 Coolant outlet housing fixing stud 0,3 ± 0,1
7 Engine coolant temperature sensor 1,7 ± 0,1
8 Motorised butterfly housing fixing screws 0,8 ± 0,1
9 Inlet manifold screws 2,2 ± 0,4
10 Inlet manifold fixing nuts 2,2 ± 0,5
11 Inlet manifold stud 0,8 ± 0,1
Engine: RFK
B1BP35QP
(*) = IMPERATIVE: Respect the tightening sequence(see following page).
C4
Angl.-t2-page040-134-2005 9/01/06 10:11 Page 86