Page 708 of 2490
20. Release the induction elbow su pport; working from the right
hand side.
1. Disconnect the vacuum pi pe from the centre of the
induction elbow.
2. Remove the upper bolt from the induction elbow support bracket.
21. Release the induction elbow su pport; working from the left
hand side.
1. Disconnect the vacuum pipe from the front of the
induction elbow.
2. Disconnect the engine breather T-piece from the induction elbow.
3. Remove the upper bolt from the induction elbow support bracket.
4. Loosen, but do not remove , the lower two bolts at the
induction elbow support bracket.
22. Disconnect the electrical conne ctor from each fuel injector.
23. Disconnect the fuel feed hose.
1. Disconnect the fuel f eed hose at the Quick Fit
connector, using special tool 310 - 044.
Page 714 of 2490
13. Reconnect the electrical connector to each fuel injector.
14. Refit the induction elbow support ; working from the left hand
side.
1. Fit the upper bolt to the induction elbow support
bracket.
2. Tighten the lower two bolts at the induction elbow support bracket.
3. Connect the engine breather T-piece to the induction elbow.
4. Connect the vacuum pipe to the front of the induction
elbow.
15. Fit the induction elbow support; working from the right hand
side.
1. Fit the upper bolt to the induction elbow support
bracket.
2. Reconnect the vacuum pi pe to the centre of the
induction elbow.
16. Fit the throttle body.
1. Fit a new gasket to the throttle body.
2. Position the throttle body to the induction elbow.
Page 722 of 2490
20. Release the induction elbow su pport; working from the right
hand side.
1. Disconnect the vacuum pi pe from the centre of the
induction elbow.
2. Remove the upper bolt from the induction elbow support bracket.
21. Release the induction elbow su pport; working from the left
hand side.
1. Disconnect the vacuum pipe from the front of the
induction elbow.
2. Disconnect the engine breather T-piece from the induction elbow.
3. Remove the upper bolt from the induction elbow support bracket.
4. Loosen, but do not remove , the lower two bolts at the
induction elbow support bracket.
22. Disconnect the electrical conne ctor from each fuel injector.
23. Disconnect the fuel feed hose.
1. Disconnect the fuel f eed hose at the Quick Fit
connector, using special tool 310 - 044.
Page 724 of 2490
3. Fit the inlet manifold to the engine.
1. Fit the inlet manifold.
2. Fit the ten bolts which secure the inlet manifold.
4. Connect the fuel feed hose.
1. Connect the fuel feed hose at the Quick Fit connector. Ensure that the hose is fully seated to the feed pipe.
5. Connect the fuel return hose.
1. Connect the fuel return hose at the Quick Fit
connector. Ensure th at the hose is fully seated to the
feed pipe.
6. Reconnect the electrical connector to each fuel injector.
Page 925 of 2490

T
he cooling system for the supercharged engine is very similar
to the normally aspirated engine, but with the addition of a
water cooled, intake air charge cooling system. This comprises a radiator, an electrically operated water pump and two
charge air cooler assemblies (heat exchangers) - one for each bank. The system works independently, but is connected to the
main cooling system at the bottom hose to allow for therma l expansion and to help to prevent unwanted circulation.
The condenser for the air conditioning system fits between th e coolant main radiator and the charge air cooling system
radiator.
Cylinder Block Heater, Drain Location
ItemDe
scription
1Rad
iator - Intake Air Coolant
2Ele
ctrically Operated Coolant Pump
3Top Hose
4Charge Air Coo
lers -
Intake Air Cooling
5Fi
lling Point for Intake Air Cooling
6N
on-Return Valves - Heater
7Ele
ctrically Operated Coolant Pump
8Hea
ter Matrix
9Wate
r Valve - Heater Control
10EGR V
alve (when fitted)
11Thr
ottle Body
12Coolan
t Recovery Bottle
13H
eader/Expansion Tank
14Eng
ine Coolant Pump
15The
rmostat Housing
16Bottom
Hose
17Air Bleed
Pipes
18Rad
iator - Main Cooling System
Page 934 of 2490

Engine Cooling - Engine Cooling
Diagn
osis and Testing
Related Faults / Codes
Adaptive
Fue
ling
Sym
p
tom Chart
Sy
m
ptom Chart
S
p
ecial Tool(s)
D
i
gital multimeter
Generi
c scan tool
Conditi
on
Possib
l
e Source
Acti
o
n
D
T
C P0171 System too lean bank
1 (A)
D T
C P0174 System too lean bank
2 (B)
Fuel delivery blockage Fu
el delivery pressure (low)
F
a
ulty injector (blocked)
Ai
r i
ntake system leak
F
u
el injector electrical fault
ECT sensor
faul
t
MAFM sensor fault IAT se
nsor fault
Thro
tt
le position sensor
fault
Mec hanica
l check
Mec
hanica
l check
Mec
hanica
l check
Mec
hanica
l check
Go t
o DTC P020
1 to 0208
Go t
o
DTC P0116 to 0118, P0125
Go t
o
DTC P0101 to 0103, P1104
Go t
o DTC P011
1 to 0113
Go t
o
DTC P0121 to 0123, P0222,
P0223
D T
C P0172 System too rich bank
1 (A)
D T
C P0175 System too rich bank
2 (B)
F u
el delivery pressure
(high)
F a
ulty injector (leaking)
F
u
el injector continuously
open
Ai r i
ntake system restricted
Fu
el injector electrical fault
ECT sensor
faul
t
MAFM sensor fault IAT sensor fault
Thrott
le position sensor
fault
Mec hanica
l check
Mec
hanica
l check
Mec
hanica
l check
Mec
hanica
l check
Go t
o DTC P020
1 to P0208
Go t
o
DTC P0116 to P0118, P0125
Go t
o
DTC P0101 to P0103, P1104
Go t
o DTC P011
1 to P0113
Go t
o
DTC P0121 to P0123, P0222,
P0223
Sy m
ptom
Possib
l
e Sources
Acti
o
n
D
T
C P0116 ECT circuit range / performance problem
Thermostat
Coo
l
ant level / contamination
Sensor out of range
Harness open circuit
Connector loose or corroded
*
*
*
*
*
GO to Pinpoint
Test A
*
D
T
C P0125 Insufficient coolant temperature for closed
loop fuel control
Thermostat
Coo l
ant level / contamination
Sensor out of range
Harness open circuit
Connector loose or corroded
*
*
*
*
*
GO to Pinpoint
Test A
*
D
T
C P0117 ECT circuit low input
Sensor o
p
en circuit
Harness open circuit
Harness short
*
*
*
GO to Pinpoint
Test B
*
Page 956 of 2490

• NOTE
: To ensure that
air is not drawn into the system during the following operations:
Do
not remove the cap from the header tank whilst the
charge air cooling system is open to atmosphere.
Do
not switch on the ignition when th
e charge air cooling system is open to atmosphere because the electrical
cooling pump may draw air into the system.
2. Fi
ll the cooling system at the header tank until the
level stabilises near the to p of the charge air cooler
fill point. This will take some time, as air is being
purged from the system.
Ensure that the head
er tank is full.
2. Fit the pressure cap to the header tank.
3. Pour coolant careful l
y into the charge air cooler fill point until
the system is full.
Fi t t
he plug and washer to the fill point.
4. Remove the pressure cap from the header tank.
5. Switch on the ignition and switch off the climate control
system.
Le ave
the ignition switched on (do not start the engine)
for at least 2 minutes to allow the air charge cooler
electric water pump to oper ate and to purge any air from
the air charge cooler radiator to the header tank. (This
operation will be repeated later)
6. Switch off the ignition for at least 1 minute.
7. Leave the ignition switched on (do not start the engine) for at
least 2 minutes to allow the air charge cooler electric water
pump to operate and to purg e any air from the air charge
cooler radiator to the header tank.
8. Top up the cooling system.
1. Top up the header tank and fit the pressure cap.
2. Remove the plug from the air charge cooler fill point. Pour coolant carefully into the air charge cooler fill
point until the system is full.
3. Fit the plug and washer to the fill point.
Page 1011 of 2490
Supercharger Cooling - Water Pump
Re
moval and Installation
Remov
al
1.
O
pen the engine compartment and fit paintwork protection
sheets.
2. Di
sconnect the batt
ery ground cable.
R
emove the battery cover.
3. Remove the twin fan and motor assembly. Refer to Operation
26.25.12.
4. Disc
onnect the harness electrical connector.
R
elease the harness connector from the mounting bracket.
Disc
onnect the harness connector.
5. R
emove the two nuts which secure the pump to the flexible
mountings.
6. Reposition the pump to fit hose clamps.
Fi
t a hose clamp to the inlet pipe and one to the outlet
pipe.