Page 921 of 2490
2
. Reposition and secure the pipe clip.
3. Position the expansion tank to the left side enclosure
panel.
47
.
Fit the expansion tank securing nuts.
1. Connect the coolant level sensor connector.
2. Fit the nuts which secure the tank.
48
.
Connect the hoses (Quick Fit connections) to the expansion
tank.
Remove all blanking plug s
from the pipes and the
expansion tank.
1. Connect the hose, expansion tank to thermostat housing (coolant outlet pipe on supercharged
engines).
2. Connect the hose, expansion tank to recovery tank.
3. Connect the hose, expansion tank to radiator.
49
.
Fit the trim panels to the engine compartment.
1. Locate the centre trim panel.
2. Fit the left hand side enclosure panel.
50. Fit the intake tube / air flow meter / air cleaner cover
assembly.
1. Position the intake tube / air flow meter / air cleaner
cover assembly.
2. Fit a new rubber seal and po sition the air intake tube
Page 922 of 2490
to th
e throttle body.
51 . Co
nnect the intake tube to the throttle body.
1. Fit a new seal and connect the intake tube to the throttle body.
2. Fit the two bolts which secure the intake tube to the throttle body.
52 . Conne
ct the air cleaner cover.
F
it
the five clips which secu
re the air cleaner cover.
53 . Re
connect the breather pipe to the A-Bank camshaft cover.
1. Fit a new O-ring seal to the breather pipe.
2. Connect the breather pipe to the stub pipe.
54. Connect the air flow meter connector.
55. Fit a new Ty-strap to secures the vacuum pipe to the
induction elbow.
56. Refill the cooling system. Refer to Operation 26.10.01.
57. NOTE: When the engine is star ted from cold and run for a
short period only, before being swit ched off, a quantity of oil will
Page 923 of 2490

be 'hun
g up' within the engine because it is not up to operating
temperature.
Should the oil level subsequently be topped-up, the level could
become too high, causing oil burning.
Typically, 0.875L is hung up.
Refill the engine with the correct specification engine oil.
58. Refill the automatic transmission. Refer to Section 307-01A,
Operation 44.24. 02.
59. Refill and bleed the power stee ring system. Refer to Section
211-02 General Procedures.
60. Repressurise the air conditioni ng system. Refer to Operation
82.30.30 and note all Wa rnings and Cautions.
61
.
Fit the engine covers.
62
.
With assistance, reposition the engine compartment cover
(bonnet) and fit the si x bolts; reconnect the ground lead to the
original location on the left hand hinge.
Re
connect the gas struts.
R
emove the masking tape from the front edge.
63. Remove the paintwork protection sheets and close the engine
compartment cover.
64. Reconnect the battery ground cable and fit the battery cover.
Re
set the clock and the radio information.
Page 924 of 2490

Engine Cooling
- Engine Cooling
Descr
i
ption and Operation
Engine Cooling Comp onents - Normally Aspirated Vehicles
Engine cooling is via a low volume, high velocity system which achieves a very fast warm up. The temperature of the
combustion chambers is reduced along with a more even temperature distribution. The temperature of the bores is increased.
F r
om the pump, coolant flows into each bank of the cylinder bl
ock. In each bank, approximately 50% of the coolant cools the
cylinder bores and the remainder is diverted th rough the bypass gallery to the cylinder head.
With the thermostat closed, coolant returns directly to the pump through the bypass on the thermostat housing.
With the thermostat open, coolant returns to the pump via the radiator.
The cooling system uses a mixture of water and Jaguar Anti-Freeze/Inhibitor (Dow 542).
The cooling system on a supercharged engine is similar, but has additional components for cooling the intake air.
Engine Cooling Co mponents - Supercharged Vehicles
ItemDescrip
tion
1Thr
ottle B
ody
2Hea
ter Return
3Coolant Pum p
4Ther
mostat Housing
5Vehicle Radia
t
or
6Hea
ter Su
pply
7Bleed
Outl
et (to expansion tank)
8EGR V
a
lve (when fitted)
9Bleed
Outl
et (to expansion tank)
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 926 of 2490
A coola n
t drain plug is located at the rear of the cylinder block.
Coolant may be drained from the A-bank, by removing the coolant pipe from behind the starter motor.
For vehicles fitted with the cold climate package, a cylinder block heater (shown) replaces the drain plug located on the B-
bank.
Coolant Pump and Flow Control
The coolant pump is fitted between the two cylinder banks, on the front face of the cylinder block.
The pump consists of a housing containing a shaft, with a sh rouded plastic impeller on one end and a drive pulley on the
other.
A pair of roller bearings support the shaft in the housing. A seal behind the impeller prevents coolant from contaminating the
bearings. Should this seal fail, coolant escapes from a witness hole in the housin g indicating that immediate action is
required.
An O-ring and an aluminum-alloy gasket, seal the ports between the pump and the cylinder banks.
Coolant Outlet Duct
Page 927 of 2490

A coola
nt outlet plastic pipe connects to the outlet port of ea
ch cylinder head to provide a common connection point for the
radiator top hose. It also incorporates the Engine Coolant Te mperature (ECT) sensor which provides a signal representing
coolant temperature at the cylinder heads. The outlet pipe has connections to supply the heater matrix and the bypass flow
to the thermostat housing. An in-groove ga sket, seals each of the outlet-to-cylinder head joints. An aluminium gasket seals
the ECT sensor to duct joint.
Coolant Outlet Duct - Supercharged
The coolant outlet duct on the supercharged engine performs exactly the same function as on the normally aspirated engine
and connects to the same ports on the engine. The main physical difference is that the thermostat housing has been
ItemDe
scription
1Bottom
Hose Connection
2The
rmostat Cover
3The
rmostat
4Coolan
t Outlet Duct
5B
reather Connection
6ECT Se
nsor
7Top Hose Conn
ection
8Bypa
ss to Water Pump
9Hea
ter Hose Connection
Page 928 of 2490
combin
ed with the outlet duct and consequently, there is no separate housin
g assembly fitted above the water pump, as used
on the normally aspirated engine. The illustration shows the outlet duct viewed from the engine.
Thermostat Housing
The plastic housing for the thermostat is fitted between th e two cylinder banks immediately above the coolant pump.
Controlling the coolant flow through the radiator, the thermostat starts to open at 80 ° to 84 °C and is fully open at 96 °C.
A duct in the cylinder block connects the thermostat housing outlet to the coolant pump inlet. The joint between the
thermostat housing and the cylinder block is via an in-groove seal.
An air bleed outlet vents an y air in the system into the expansion reservoir, durin
g normal operation. A removable cap (usin g
a hex key) allows air to vent from the system when filling from empty.
On supercharged engines, the thermostat housin g is combined with the coolant outlet duct.
Radiator