temperature sensor Citroen C4 2005 2.G Workshop Manual

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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
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
11 Camshaft bearing cap screws (*)
Pre-tightening0,5
Tightening1 ± 0,1
12 Exhaust manifold fixing stud 0,8 ± 0,2
13 Coolant outlet housing fixing stud 0,8 ± 0,2
14 Engine coolant temperature sensor 1,7 ± 0,1
15 Inner timing cover screw 0,8 ± 0,1
16 Electrovalve fixing screw (VVT) 0,9 ± 0,1
Engine: RFJ
B1BP35MP
(*) = IMPERATIVE: Respect the tightening sequence(see following page).
C4
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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
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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
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AIR
CONDITIONING
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Aircon circuit diagnosis table
Principal problem Symptom Possible causes
Low pressure normal and high pressure too high Presence of air in the aircon circuit
Low pressure normal and high pressure too lowAircon pressostat defective
Evaporator sensor defective
Abnormal levels of pressure Low pressure too high and high pressure normal Aircon pressure reducer jammed open
Filtering and drying cartridge saturated or
Low pressure too low and high pressure normal clogged
Aircon pressure reducer iced up
Under cooling too weak Lack of aircon fluid
Air conditioning operating inExcess aircon fluid
back-up mode
Under cooling excessive Presence of air in the aircon circuit
Filtering and drying cartridge clogged
NOTE: In all cases, measure the excessive heating (SC)and the blow air temperature.
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