Cooling System (03.03)
Engine (03.00)3-3-2 Workshop Manual Issue 5, Janauary 2010
cooling system. No manual bleed points are provided on the
system.
The coolant reservoir should be full when the coolant system
is cold.
Engine Oil Cooler
The oil temperature is contro lled by an air/oil cooler
mounted at the front of the car. Engine oil is removed from
the dry sump, with the scavenge pump. The oil is routed to
a temperature controlled thermostat which controls the
directional flow of the oil. With the thermostat closed the oil
is routed directly to the oil tank. When the thermostat starts
to open (at 105°C) the oil is routed via the air/oil cooler
before entering the tank.
Specifications
Torque Figures
Maintenance
Coolant-Drain/Fill
1. Raise vehicle on ramp.
2. Remove front undertray (refer to Workshop Manual procedure 01.02.NB Undertray - Front - Renew).
3. Position suitable container to collect coolant.
4. Remove pressure cap from coolant reservoir.
5. Remove drain plug from radiator, allow coolant to drain.
6. Installation
7. Clean radiator drain plug.
8. Install and tighten drain plug.
9. Remove drain container.
10. Install front undertray (refer to Workshop Manual procedure 01.02.NB Undertray - Front - Renew).
11. Lower vehicle on ramp.
12. Fill cooling system with specified coolant mix to maximum level in coolant reservoir.
Antifreeze Mix
50% OAT coolant/50% water
Pressure Cap 150kpa
Leakage Rates 30cm/min. 150-180kpa
60xcm/min. 10kpa
Up to 75kpa @ 150cm/h
Water Pump Pumps 4ltr/min. @ 1000rpm
Pumps 240ltr/min. @ 7000rpm
Thermostat Opens between 86°C - 90°C (186.8°F -
194°F)
Fully open at 102°C
The anti-freeze is un ique and cannot be mixed with other
anti-freeze solutions. The OAT coolant/water mixture has a
life of 150,000 miles or 5 years (which ever comes first).
Description Nm. Ib/ft
Condenser A/C pipes 8-10 6-8
Thermostat Housing 8-12 6-9
Thermostat housing support bracket 23-27 17-20
Water pump 23-27 17-20
Water pump pulley 23-27 17-20
Oil Cooler 50 36
Caution
‘Spring-band’ clips
‘Spring-band’ clips must be installed as detailed below:
All coolant hoses and spigots must be de-greased before assembly.
Repair Operation Time (ROT)
ItemCode
Coolant-Drain-Fill 03.03.AD
WAR NI NG
DO NOT REMOVE THE PRESSURE CAP WHEN THE
COOLANT IS HOT. ALLOW TIME FOR THE COOLANT /
ENGINE TO COOL. TAKE PARTICULAR CARE TO AVOID BURNS FROM THE COOLING SYSTEM.
03-03-002
3
2
4
Coolant Hose SpigottAlignment Marks
Cooling System (03.03)
Engine (03.00)
Issue 5, Janauary 2010 Workshop Manual 3-3-3
13. Install and tighten pressure cap.
14. Run engine until normal operating temperature is reached.
15. Stop engine, allow to cool down.
16. Re-check coolant level, top-up as necessary.
Thermostat - Renew
Removal
1. Drain Coolant (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
2. Release breather valve (bolt x1) and tie aside.
3. Unclip engine harness for access (x4).
4. Remove one end of engine breather hoses for access (x3).
5. Remove breather valve bracket for access (nuts x2 bolt x1).
6. Remove thermostat housing from manifold (bolt x3).
7. Remove thermostat and sealing ring.
Installation
1. Install new thermostat and sealing ring .
2. Install thermostat housing (torque).
3. Install breather valve bracket.
4. Install breather hoses (x3) and clip.
5. Clip engine harness.
6. Install breather valve.
7. Refill coolant (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
Wa t e r P u m p - R e n e w
Removal
1. Drain cooling system (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
2. Disconnect breather pipe qu ickfits (x2) from air cleaner
duct.
3. Remove throttle body du ct for access. (clips x3). 4. Remove pump pulley bolts (x
3) (refer to Figure 1).
Figure 1
5. Release tensioner and slip belt from idler.
6. Remove pump pulley.
7. Remove pump (bolts x7 ) (refer to Figure 2).
Figure 2
Installation
1. Install pump (bolts x7) (torque), clean mating faces.
2. Fit pulley to pump with bolts.
3. Torque pulley bolts (bolt x3).
4. Release tensioner and slip belt on idler.
5. Install throttle body duct.
6. Connect breather pipe quickf its (x2) to air cleaner duct.
7. Refill cooling system (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
Water Pump Pulley - Renew
Removal
1. Battery isolation switch ‘OFF’.
2. Disconnect breather pipe qu ickfits (x2) from air cleaner
duct.
WA R N I N G
DO NOT REMOVE THE PRESSURE CAP WHEN THE
COOLANT IS HOT. ALLOW TIME FOR THE COOLANT /
ENGINE TO COOL. TAKE PARTICULAR CARE TO
AVOID BURNS FROM THE COOLING SYSTEM.
Repair Operation Time (ROT)
Repair Operation Time (ROT)
Repair Operation Time (ROT)
A030350
A030351
Cooling System (03.03)
Engine (03.00)
Issue 5, Janauary 2010 Workshop Manual 3-3-5
3. Put the horn assembly into the correct position.
4. Install and tighten the two bolts that attach the horn mount bracket to the body.
5. Connect the two electrical connectors to the wiring harness for the radiator fan and motor assembly.
6. Install the radiator closin g panel. (0102AA - Radiator
Closing Panel).
7. Set the battery isolation switch to on.
8. Close the boot.
Radiator and Condenser Assembly -
Renew
Removal
1. Remove cooling fan pack (refer to Workshop Manual procedure 03.03.DB Fan and Motor Assembly -
Radiator - Renew).
2. Remove grille (refer to Workshop Manual procedure 01.08.AA Grille - Radiator - Renew).
3. Drain cooling system (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
4. Recover refrigerant (refer to Workshop Manual procedure 12.03.FA Refrigerant Gas - Recover/Recharge
- Renew).
5. Remove bolts (x4), that attach the PAS fluid cooler to bonnet latch cross member. Tie fluid cooler aside.
6. Remove bolts (x6), and spacers (x2) that attach the bonnet latch cross member to body and position aside.
7. Disconnect top and bottom hose from radiator (clips
x2).
8. Remove expansion tank hose from radiator (clip x1).
9. Remove bolts (x2), that attach the condenser pipe connections. Plug pipes and block connections.
10. Remove radiator mounting rubbers (x4)
11. Remove foam seals from radiator (x3).
Installation
1. Install foam seals to radiator (x3).
2. Install rubber mounts to radiator (x4).
3. Clean pipe connections, remove plugs.
4. Install new 'O' rings to pipe connections. Connect pipes to condenser. Install and torque tighten bolts (x2).
5. Connect top and bottom hoses to radiator (clips x2).
6. Connect expansion tank hose to radiator (clip x1). 7. Install bonnet latch cross member, install spacers and
bolts (torque).
8. Position PAS fluid cooler to cross member, install and
torque tighten bolts (x4).
9. Install grill (refer to Workshop Manual procedure
01.08.AA Grille - Radiator - Renew).
10. Install cooling fan pack (refer to Workshop Manual procedure 03.03.DB Fan and Motor Assembly -
Radiator - Renew).
11. Recharge refrigerant (refer to Workshop Manual procedure 12.03.FA Refriger ant Gas - Recover/Recharge
- Renew).
12. Refill cooling system (r efer to Workshop Manual
procedure 03.03.AD Coolant - Drain and Refill).
Radiator Assembly - Renew
Removal
1. Remove cooling fan pack (refer to Workshop Manual procedure 03.03.EB Fan and Motor Assembly Radiator -
Renew
2. Remove grille (refer to Workshop Manual procedure 01.08.AA Grille - Radiator - Renew).
3. Drain coolant (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
4. Remove bolt that attaches the PAS pipe bracket to bottom cross member.
5. Remove bolts (x6), and spacers (x2) that attach the bonnet latch cross member to body and position aside.
6. Disconnect top and bottom hose from radiator (clips x2).
7. Disconnect top and bottom hose from radiator (clips x2).
8. Remove expansion tank hos e from radiator (clip x1).
9. Remove bolts (x2) that attach the radiator to condenser.
10. Unclip condenser from ra diator and remove from
vehicle (lugs x4) (support condenser).
11. Remove radiator mounting rubbers (x4)
1. Remove foam seals from radiator (x3).
Installation
1. Install foam seals to radiator (x3).
2. Install rubber mounts to radiator (x4).
3. Install radiator and clip to condenser (lugs x4).
4. Install condenser to radiator bolts x2 (torque).
5. Connect top and bottom hoses to radiator (clips x2).
6. Connect expansion tank hose to radiator (clip x1).
7. Install bonnet latch cross member, install spacers and bolts (torque).
8. Position PAS fluid cooler to cross member, install and
torque tighten bolts (x4).
Repair Operation Time (ROT)
Repair Operation Time (ROT)
Cooling System (03.03)
Engine (03.00)3-3-6 Workshop Manual Issue 5, Janauary 2010
9. Install grill (refer to Workshop Manual procedure 01.08.AA Grille - Radiator - Renew).
10. Install cooling fan pack (refer to Workshop Manual procedure 03.03.EB Fan and Motor Assembly Radiator -
Renew).
11. Raise vehicle
12. Install bottom radiator cros smember (bolts x4) (torque).
13. Install PAS pipe bracket to cross member (bolt x1).
14. Refill coolant (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
Air Conditioning Condenser - Renew
Removal
1. Recover refrigerant gas fr om A/C system (refer to
Workshop Manual procedure 12.03.FA Refrigerant Gas
- Recover/Recharge - Renew).
2. Remove grille (refer to Workshop Manual procedure 01.08.AA Grille - Radiator - Renew).
3. Remove slam panel (screws x12).
4. Remove bolts (x4), that attach the PAS fluid cooler to bonnet latch cross member. Tie fluid cooler aside.
5. Remove bolts (x6), and spacers (x2) that attach the bonnet latch cross member to body and position aside.
6. Remove bolts (x2), that attach the condenser pipe connections. Plug pipes and block connections.
7. Remove and discard O-rings (x2) from pipe connections.
8. Remove bolts (x2), that attach the condenser to radiator, remove condenser.
Installation
1. Install condenser to radiator, install and torque tighten bolts (x2).
2. Clean pipe connections, remove plugs.
3. Install new O-rings to pipe connections. Connect pipes
to condenser. Install and torque tighten bolts (x2).
4. Install bonnet latch cross member, install spacers and bolts (torque).
5. Position PAS fluid cooler to cross member, install and torque tighten bolts (x4).
6. Install slam panel.
7. Install grille (refer to Workshop Manual procedure 01.08.AA Grille - Radiator - Renew). 8. Refrigerant gas re-charge A/C system (refer to Workshop
Manual procedure 12.03.FA Refrigerant Gas - Recover/
Recharge - Renew).
Radiator Fan Modulator - Remove and
Install
Removal
1. Remove the radiator fan and motor assembly. (0303DB - Radiator Fan and Motor Assembly).
2. Disconnect the two electrical connectors from the radiator fan modulator.
3. Release the five fir tree cl ips that attach the wiring
harness for the radiator fan modulator to the fan cowl.
4. Release the two electrical connectors for the radiator fan modulator from the mount.
5. Remove the screw that attaches the radiator fan modulator to the fan cowl.
6. Remove the radiator fan modulator.
Install
1. Install the radiator fan modulator.
2. Install and tighten the screw that attaches the radiator fan modulator to the fan cowl.
3. Attach the two electrical connectors for the radiator fan modulator to the mount.
4. Install the five fir tree clips that attach the wiring harness for the radiator fan modulator to the fan cowl.
5. Connect the two electrical connectors to the radiator fan modulator.
6. Install the radiator fan and motor assembly. (03.03.DB - Radiator Fan and Motor Assembly).
Expansion Tank Assembly - Renew
Remove
1. Using a syringe, remove coolant from expansion tank.
2. Remove bolts (x4), remove LH corner cross brace.
3. Release clips, disconnect coolant hoses (x3) from expansion tank.
4. Remove upper bolt and side nut that attaches the expansion tank.
Repair Operation Time (ROT)
Repair Operation Time (ROT)
ItemCode
Radiator Fan Modulator - Remove and
Install 03.03.EC
Repair Operation Time (ROT)
ItemCode
Expansion Tank Assembly - Renew 03.03.FB
WAR NI NG
DO NOT REMOVE THE PRESSURE CAP WHEN THE
COOLANT IS HOT. ALLOW TIME FOR THE COOLANT /
ENGINE TO COOL. TAKE PARTICULAR CARE TO AVOID BURNS FROM THE COOLING SYSTEM.
Cooling System (03.03)
Engine (03.00)
Issue 5, Janauary 2010 Workshop Manual 3-3-7
5. Raise expansion tank sufficient to disconnect multiplug, release clip, disconnect hose.
6. Remove expansion tank.
Install
1. Position expansion tank, connect multiplug , install hose and secure with clip.
2. Install nut and bolt, tighten to correct torque.
3. Install hoses (x3) on expansion tank, secure with clips (x3).
4. Install LH cross brace, inst all bolts (x4) (torque with
vehicle on level ground).
5. Refill expansion tank to correct level with correct
coolant fluid mixture.
6. Clean up any spilled coolant fluid.
Coolant Recovery Tank Assembly -
Remove and Install
Remove
1. Raise the vehicle and make it safe.
2. On Roadster vehicles, re move the centre undertray.
3. Remove the left side front wheel.
4. Remove the five or six M6 Torx-head screws that attach the rear of the wheelarch liner.
5. Remove the self-tapping screw that attaches the rear of the wheelarch liner into the wheelarch.
6. Turn the steering fully to the left.
7. Move the rear of the wheela rch liner away to get access
to the recovery tank. 8. Release the clip that attaches each of the two hoses (2)
to the recovery tank and release the hoses (refer to
Figure 1).
Figure 1
9. Remove the two M6 screws (3) that attach the recovery tank to the body and remove the recovery tank.
Install
1. Put the recovery tank in position on the body.
2. Install and tighten the two M6 attachment screws (3).
3. Connect the two hoses (2) to the recovery tank.
4. Put the clip back in position on each hose.
5. Put the wheelarch liner back into position.
6. Turn the steering to the centre position.
7. Install the self-tapping screw that attaches the rear of the wheelarch liner into the wheelarch.
8. Install the five or six M6 Torx-head screws that attach the rear of the wheelarch liner.
9. Install the front left roadwheel.
10. On Roadster vehicles, install the centre undertray.
11. Lower the vehicle.
12. Do a check of the coolant level and fill if necessary.
Repair Operation Time (ROT)
Cooling System (03.03)
Engine (03.00)3-3-8 Workshop Manual Issue 5, Janauary 2010
Engine Coolant Reservoir Hose - Renew
Removal
1. Drain cooling system (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
2. Remove screw and nut that attaches the expansion tank to body, move expansion tank aside (to access hose
clip).
3. Release clip and disconnect hose from expansion tank.
4. Remove hose from engine (quickfit).
5. Release hose from body clip, remove hose.
Installation
1. Install hose, secure in body clip.
2. Install hose to expansion tank, secure with clip.
3. Install and secure hose to engine (quick fit).
4. Install and torque tighten screw and nut that attaches the expansion tank to body.
5. Refill cooling system (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
Water Inlet/Outlet Manifold - Renew
Removal
1. Remove reservoir bracket assembly - vacuum system (refer to Workshop Manual procedure 03.08.AE
Reservoir and Bracket Assembly - Vacuum System -
Renew).
2. Disconnect bottom hose (cli p x1) (refer to Figure 1).
Figure 1
3. Disconnect top hose (clip x1) (refer to Figure 2).
Figure 2
Repair Operation Time (ROT)Repair Operation Time (ROT)
ItemCode
Water Inlet/Outlet Manifold - Renew LHD03.03.MH
Water Inlet/Outlet Manifold - Renew RHD03.03.MJ
A030361
A030361A
Cooling System (03.03)
Engine (03.00)
Issue 5, Janauary 2010 Workshop Manual 3-3-9
4. Disconnect expansion tank feed hose (quickfit) (refer to Figure 3).
Figure 3
5. Disconnect heater feed hose (clip x1) (refer to Figure 4).
Figure 4
6. Disconnect heater return hose (clip x1) (refer to Figure 5).
Figure 5
7. Disconnect breather hose (qui ckfit) (refer to Figure 6).
Figure 6
8. Disconnect separator hose (clip x1) (refer to Figure 7).
Figure 7
9. Disconnect coolant temperature multiplug (refer to
Figure 8).
Figure 8
10. Remove harness clips (x2).
11. Remove 4th bolt of vacuum tank bracket fixing (refer to Figure 9).
A030361B
A030364
A030364A
A030359
A030361
A030373
Cooling System (03.03)
Engine (03.00)3-3-10 Workshop Manual Issue 5, Janauary 2010
12. Remove coolant manifold (bolts x4) (refer to Figure 9).
Figure 9
13. Remove old seals.
14. Remove bracket breather (bolt x1, nut x2).
Installation
1. Install bracket breather (bolt x1, nuts x2) (torque).
2. Clean gasket faces.
3. Install new seals.
4. Install coolant manifold (bolts x4) (torque).
5. Install 4th bolt of vacuum tank bracket fixing (torque).
6. Install harness clips (x2).
7. Connect coolant temp multiplug.
8. Connect separator hose (clip x1).
9. Connect breather hose (quickfit).
10. Connect heater return hose (clip x1).
11. Connect heater feed hose (clip x1).
12. Connect expansion tank feed hose (quickfit).
13. Disconnect top hose (clip x1).
14. Connect bottom hose (clip x1).
15. Install reservoir bracket asse mbly - vacuum system (refer
to Workshop Manual procedu re 03.08.AE Reservoir and
Bracket Assembly - Vacuum System - Renew).
Engine Electric Co olant Temperature
Sensor - Renew
Removal
1. Drain Cooling system (refer to Workshop Manual procedure 03.03.AD Coolant - Drain and Refill).
2. Disconnect breather pipe qu ickfits (x2) from air cleaner
duct.
3. Remove throttle body duct for access. (clips x3). 4. Remove pump pulley bolts (x3) (refer to Figure 1).
Figure 1
5. Release tensioner and slip belt from idler (refer to Figure
2).
Figure 2
6. Remove pump pulley.
7. Disconnect throttle body coolant hose (refer to Figure 3).
Figure 3
Repair Operation Time (ROT)
A030368A030350
A030553
A030364