2005 Citroen C4 Egr valve

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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Cylinder head bolts (*)
1st pre-tightening1,5 ± 0,1
2nd pre-tightening5 ± 0,5
11Angular slackening360°
Tightening2 ± 0,2
Angular tightening285° ± 5°
Camshaft bearing cap cover screws (*)
12Pre-tightening0,5
Tightening1 ± 0,1
13 EGR valve screw 0,8 ± 0,1
14 Valve for injection of air to the exhaust 0,8 ± 0,2
15 Inlet manifold stud 0,8 ± 0,1
16 Inlet manifold fixing nuts 2,2 ± 0,5
17 Sparking plugs 2,7 ± 0,2
Engine: RFN
B1BP34MP
(*) = IMPERATIVE: Respect the tightening sequence (see following page).
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Camshaft bearing cover studs
4Pre-tightening0,5 ± 0,1
Tightening1 ± 0,1
5 Exhaust gas recycling electrovalve (EGR) 1 ± 0,1
Cylinder head
6Pre-tightening2 ± 0,2
Tightening4 ± 0,5
Angular tightening260° ± 5°
7 Vacuum pump 1,8 ± 0,2
Coolant outlet housing
8Pre-tightening0,3 ± 0,1
Tightening0,7 ± 0,1
Engine: 9HX
B1DP05BC
(6) Sequence for tightening the cylinder head bolts
B1BP39YP
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Cylinder head
Camshaft bearing cover studs
4Pre-tightening0,5 ± 0,1
Tightening1 ± 0,1
5 Exhaust gas recycling electrovalve (EGR) 1 ± 0,1
Cylinder head
6Pre-tightening2 ± 0,2
Tightening4 ± 0,5
Angular tightening260° ± 5°
7 Vacuum pump 1,8 ± 0,2
Coolant outlet housing
8Pre-tightening0,3 ± 0,1
Tightening0,7 ± 0,1
Engines: 9HY - 9HZ
B1DP05BC
(6) Sequence for tightening the cylinder head bolts
B1BP39XP
C4
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ENGINE
SPECIAL FEATURES - TIGHTENING TORQUES (m.daN)
Engines9HZ - 9HY
Cylinder head
Camshaft bearing covers
Pre-tightening0,5 ± 0,1
Tightening1 ± 0,1
Exhaust manifold3 ± 0,3
Camshaft pulley
Pre-tightening2 ± 0,2
Angular tightening50°±5°
Cylinder head
Pre-tightening2 ± 0,2
Tightening4 ± 0,5
Angular tightening260° ± 5°
EGR valve1 ± 0,1
Flywheel - Clutch
Flywheel
Pre-tightening3 ± 0,3
Angular tightening90°±5°
Clutch mechanism2 ± 0,2
XSARA PICASSO
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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Tool.
[1] Manual pressure-vacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness requirements.
EGR valve.
Connect tool [1] on the capsule take-off (2).
Apply a vacuum of approx. 0,6 barseveral times to activate the rod «a».
In abruptly suppressing the vacuum, the valve should click and lock itself back on its seating.
Regulation electrovalve (EGR).
Check to be performed between the electrovalve (1)and the EGR valve (2).
Link the tool [1]in series, between the electrovalve (1)and the capsule (2).
Compare the values noted with those in the table below.
Engine speed (rpm) Vacuum value
780 0,5 bar
2500 0 bar
B1HP1K6D
Engines: 8HX - 8HZ
XSARA
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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Exhaust gas recycling (EGR) valve.
(1)Exhaust gas recycling (EGR) electrovalve
NOTE:The engine ECU pilots the EGR valve.
Perform the check with the aid of a diagnostic tool.
Carry out the following operations with the diagnostic tool:
- «INJECTION»menu.
- Actuator tests.
- EGR electrovalve.
Check that you can hear the click from the EGR regulation electrovalve.
Double butterfly housing
(vehicle with particle filter).
(2)Double butterfly housing
Perform the check with the aid of a diagnostic tool.
Carry out the following operations with the diagnostic tool:
- «INJECTION»menu.
- Actuator tests.
- Butterfly.
EGR exchanger butterfly.
Check that you can hear the click from the double butterfly housing.
B1HP1UPC
B1HP1UQC
XSARA PICASSO
Engines: 9HZ - 9HY
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INJECTION
CHECKS: EXHAUST GASES RECYCLING CIRCUIT
Tool.
[1]Manual vacuum pump: FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness requirements.
EGR valve.
Connect the tool [1]to the capsule union (1).
Apply, several times in succession, a vacuum of approx. 0.6 barto activate the rod "a".
In abrupt reaction to the vacuum, the valve should close on its seating with a clicking noise.
Exhaust gas reycling (EGR) electrovalve.
Check, not under load, between the electrovalve (2)and the EGR valve (1).
Connect the tool [1]between the electrovalve (2)and the capsule (1).
Compare readings with the values in the table below.
Engine speed (rpm) Vacuum value
780 0,5 bar
2500 0 bar
B1HP12GD
Engines: RHY - RHZ
XSARA PICASSO
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AXLES
SUSPENSION
STEERING
C4TIGHTENING TORQUES: POWER-ASSISTED STEERING
Steering column
Ref. Description Tightening
1Fixed central controls steering wheel screw2,2 ± 0,2
2Steering column interface nuts
3Upper nuts
4Lower nuts
5Fixing of steering cardan on valve stem
Steering mechanism with integral ram
Ref. Description Tightening
6Union of hydraulic pipe on ram0,8 ± 0,1
7Fixing of distributor valve on steering mechanism1,5 ± 0,1
8Fixing of bracket on distributor valve2 ± 0,2
9Union of hydraulic pipe on distributor valve0,8 ± 0,1
10Steering ball-joint nut3,5 ± 0,3
11Locking nut for adjustment of steering track rods5,5 ± 0,5
12Fixing of ball-joint on steering rack7 ± 0,7
13Stud on steering mechanism0,8 ± 0,1
14Nut fixing mechanism on subframe8 ± 0,8
B3EP177D
B3EP176D
2,2 ± 0,2
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