2010 JAGUAR XFR temperature

Operating Temperature Range -40 to 160 °C (-40 to 320 °F) Oil Level Check

For additional information, refer to Engine Oil Draining and Filling (303-01A, General Procedures).

For accuracy, oil level checks should be performed with the vehicle on level ground when the oil is hot. The vehicle needs to
stand for approximately 10 minutes, after the engine is switched off, to allow the oil to drain back into the sump pan and the
oil level to stabilize. The oil level system will not give a reading until the oil level has stabilized.

With the ignition on, the engine stopped and the transmission in P (park), repeatedly press the trip button on the end of the
LH multifunction switch until the oil level icon and applicable message are displayed in the fuel gage/trip computer area of the message center, as shown below:



Item Description A Oil level is between 50% and 100% of recommended level. No top-up required. B Oil level is between 12.5% and 50% percent of recommended level. Add 0.5 liter (0.53 US quart) of oil. C Oil level is between 0% and 12.5% of recommended level. Add 1 liter (1.06 US quarts) of oil. D Oil level is above maximum for safe operation. Reduce oil level to recommended level. E Oil level is below minimum for safe operation. Add 1.5 liters (1.59 US quarts) of oil, then recheck level. F Oil level is stabilizing. Wait 10 minutes and then recheck level. If this display is accompanied by the message ENGINE OIL LEVEL MONITOR SYSTEM FAULT, a fault with the oil level monitoring system is indicated. System Fault Warning

If there is a fault with the system, in addition to being displayed during an oil level check, the message ENGINE OIL LEVEL
MONITOR SYSTEM FAULT will be temporarily displayed when the ignition is first switched on.

Published: 11-May-2011
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Engine Cooling - Overview
Description and Operation

OVERVIEW

The engine cooling system maintains the engine within an optimum temperature range under changing ambient and engine
operating conditions. The system is a pressurized expansion tank system with continuous bleeds to separate air from the
coolant and prevent the formation of air locks. The engine cooling system also provides:
Heating for:
- The passenger compartment. For additional information, refer to 412-01 Climate Control.
- The throttle body.
Cooling for:
- The engine oil cooler. For additional information, refer to 303-01F Engine - 5.0L, Vehicles With: Supercharger or
303-01E Engine - 5.0L, Vehicles Without: Supercharger.
- The transmission fluid cooler. For additional information, refer to 307-02B Transmission/Transaxle Cooling -
5.0L/3.0L Diesel.
The primary components of the engine cooling system are the:
Coolant pump.
Thermostat.
Radiator.
Auxiliary radiator (SC (supercharger) vehicles only).
Cooling fan.
Expansion tank.
Engine oil cooler.
Outlet tube and heater manifold.
Connecting hoses and pipes.

14 Radiator 15 Auxiliary radiator 16 Connection with supercharger cooling system
System Operation
When the engine is running, the coolant is circulated around the engine cooling system by the coolant pump. From the coolant
pump, coolant flows through the cylinder heads and the engine oil cooler into the cylinder block and the heater manifold.

In the cylinder block, the coolant flows forwards to the outlet tube. When the coolant is cold, the thermostat is closed and the
coolant flows direct from the outlet tube back to the coolant pump. Once the coolant reaches operating temperature the
thermostat begins to open, to control system temperature, and coolant flows from the outlet tube to the coolant pump via the
radiator and, on SC (supercharger) vehicles, the auxiliary radiator. When the thermostat is open, the coolant flow through the
radiator(s) also generates a coolant flow through the transmission fluid cooler.

From the heater manifold the coolant flows through the electronic throttle and the heater core, in parallel circuits that are
unaffected by the position of the thermostat. From the electronic throttle, the coolant merges with bleed coolant from the
coolant pump and the outlet tube and flows to the expansion tank. From the heater core, the coolant flows back to the inlet of
the coolant pump.

Expansion and contraction of the coolant is accommodated by an air space in the expansion tank and the compliance of the
flexible hoses.

If the coolant level in the expansion tank decreases below a predetermined value, the level sensor connects a ground to the
instrument cluster, which activates the appropriate warning. For additional information, refer to 413-01 Instrument Cluster.

The cooling fan is operated by a fan control module integrated into the cooling fan motor. The fan control module regulates the
voltage, and thus speed, of the cooling fan motor in response to a PWM (pulse width modulation) signal from the ECM (engine
control module).

The cooling fan receives a battery feed and an ignition feed from the EJB (engine junction box). The ignition feed is supplied
from the main relay in the EJB, which is controlled by the ECM.
The ECM calculates the required fan speed from the engine temperature, A/C (air conditioning) system pressure and transmission fluid temperature. Under hot operating conditions, the fan may continue to operate for 4 minutes after the engine
has been switched off.



COOLANT PUMP Component Description



Item Description 1 Inlet connection 2 Pump body 3 Outlet flange to RH cylinder head 4 Outlet to engine oil cooler 5 Outlet flange to LH cylinder head

7 Bleed pipe connection (containing check valve) The body of the coolant pump contains an impeller attached to a shaft supported in a bearing assembly. The impeller is driven
by a pulley, pressed on to the front of the shaft, which is driven by the accessory drive belt. For additional information, refer to
303-05E Accessory Drive - 5.0L, Vehicles Without: Supercharger or 303-05F - 5.0L, Vehicles With: Supercharger.

Two coolant outlet flanges attach the coolant pump to the front of the cylinder heads. A pipe connects a further coolant outlet
to a pipe from the engine oil cooler. A bleed connector is installed in the front of the coolant pump, adjacent to the coolant
inlet connection from the thermostat. A check valve is incorporated into the bleed connection.

THERMOSTAT



Item Description 1 Screw (3 off) 2 Lower body 3 Upper body 4 Thermostat 5 Seal The thermostat is a multi-stage device located in the coolant pump inlet to provide fast response and control of the engine
outlet temperature.

The thermostat allows rapid engine warm-up by preventing coolant flow through the radiator and by limiting coolant flow
through the cylinder block when the engine is cold. During warm-up and at engines speeds above approximately 1800 rev/min,
a by-pass valve opens to control the coolant flow and pressure, to protect the engine components. When the thermostat
opening reaches 6 mm (0.24 in.), the by-pass flow is shut-off. When the thermostat opening exceeds 6 mm (0.24 in.), the
radiator coolant flow is further controlled up to the point where the thermostat is fully open. At this point maximum radiator
coolant flow is achieved to provide maximum cooling.

On both naturally aspirated and supercharger vehicles, the thermostat begins to open at 88 - 90 °C (190 - 194 °F) and is fully
open at 102 °C (216 °F).

1 Throttle body heater hose connection 2 Heater core supply hose connection 3 RH cylinder head connection 4 Engine coolant temperature sensor 5 LH cylinder head connection
ENGINE COOLANT

The engine coolant is formulated to last for ten years or 240,000 km (150,000 miles). The coolant is silicate free and must not
be mixed with conventional engine coolant.

ENGINE BLOCK HEATER



Item Description A 110 V ac version B 240 V ac version For vehicle markets subject to very cold climatic conditions, an engine block heater is installed in place of the cylinder block
drain plug. The engine block heater is either a 110 V ac or 240 V ac electric heater element, depending on the market, which
can be connected to a domestic power supply via a connector in the lower center grill of the front bumper. Heater Manifold

Published: 17-Apr-2014
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Engine Cooling V8 5.0L
Petrol/V8 S/C 5.0L Petrol
Diagnosis and Testing

Principle of Operation

For a detailed description of the engine cooling system and operation, refer to the relevant description and operation section of
the workshop manual. Engine Cooling, Section - 303-03

Inspection and Verification


WARNING: Moving parts can cause severe injury, keep clear of moving parts, never place your hands or any part of your
body near to moving parts


CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle
NOTES:


Check DDW for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific
customer complaint and carry out the recommendations as required.


If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the
Warranty Policy and Procedures manual, or determine if any prior approval programme is in operation, prior to the installation
of a new module/component.


Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests

1. Verify the customer concern

2. Visually inspect for obvious signs of mechanical or electrical damage

Visual Inspection
Mechanical Electrical
Coolant leaks
Coolant hoses
Coolant expansion tank
Radiator
Heater core
Accessory drive belt
Cooling fan
Fuses
Harnesses
Loose or corroded connector(s)
Engine coolant temperature sensor
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step

4. If the cause is not visually evident, verify the symptom and refer to the symptom chart, alternatively check for
diagnostic trouble codes (DTCs) and refer to the DTC Index
Symptom Chart

Symptom Possible Causes Action Coolant loss
Hoses
Hose connections
Radiator
Water pump
Heater core
Gaskets
Engine casting cracks
Engine block core
plugs Carry out a visual inspection. If there are no obvious leaks, carry out a
cooling system pressure test. Rectify any leaks as necessary Overheating
Low/contaminated
coolant
Thermostat
Cooling fan Check the coolant level and condition. Carry out a cooling system pressure
test. Rectify any leaks as necessary. Check the thermostat and rectify as
necessary. Check the cooling fan operation, make sure the cooling fan
rotates freely. Check for obstructions to the air flow over the radiator.
Rectify as necessary

Symptom Possible Causes Action Engine coolant
temperature sensor
Restricted air flow
over the radiator Engine not reaching
normal temperature
Thermostat
Cooling fan
Thermostat
Fan speed module Check the thermostat operation. Check the cooling fan operation, make
sure the cooling fan is not seized. Rectify as necessary Engine NOT running.
Cooling fan is
maximum speed
Circuit reference PWM
- Duty cycle is
implausible
Circuit reference PWM
- Frequency out
of range
Circuit reference PWM
- Circuit is open
circuit
Circuit reference PWM
- Circuit is short
circuit to power
Circuit reference PWM
- Circuit is short
circuit to
ground Refer to the electrical circuit diagrams and check the PWM circuit for short
circuit to ground, short circuit to power, open circuit, high resistance Engine IS running.
Cooling fan is
stationary
Circuit reference - IGN
-
- Circuit is open
circuit
Circuit reference - IGN
-
- Circuit is short
circuit to
ground
- EMS fuse
failure
- EMS relay
failure Refer to the electrical circuit diagrams and check the IGN circuit for short
circuit to ground, open circuit, high resistance. Check and install a new EMS
relay and fuse
PINPOINT TEST A : TEST
CONDITIONS DETAILS/RESULTS/ACTIONS A1: CHECK FOR COOLING FAN RELATED DTCS

NOTE: For a complete list of all diagnostic trouble codes that could be logged on this vehicle, please refer
to section 100-00. Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the
5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits
give extra information read by the manufacturer-approved diagnostic system). 1 Using the manufacturer approved diagnostic system check the engine control module for DTCs 2 P0480-00 & P0480 with any other different last 2 digits in the DTC 3 P0481-00 & P0481 with any other different last 2 digits in the DTC 4 P0483-00 & P0483 with any other different last 2 digits in the DTC Are any of the cooling fan related DTCs listed, logged in the engine control module?
Yes
Please refer to section 100-00 and refer to the relevant DTC index and carry out repair procedure
Using the manufacturer approved diagnostic system clear all stored diagnostic trouble codes from the
diagnosis menu tab
Proceed to the test step A9 'Cooling fan validation procedure'
No
Proceed to the next step. A2 'Check for other DTCs' A2: CHECK FOR OTHER DTCS 1 Using the manufacturer approved diagnostic system check the engine control module for DTCs Are any other DTCs listed, logged in the engine control module?
Yes
Please refer to section 100-00 and refer to the relevant DTC index and carry out repair procedure
Using the manufacturer approved diagnostic system clear all stored diagnostic trouble codes from the
diagnosis menu tab
No

- Megafuse fixing nuts
Engine junction box
- Megafuse
- Megafuse fixing nuts
- Fuses
- Engine control module relay Were any circuits or wiring short circuit to ground, short circuit to power, open circuit, high resistance or any
connectors damaged from water ingress, pin damage and/or corrosion?
Yes
Rectify as required
No
Proceed to the next step. A9 'Cooling fan validation procedure' A9: COOLING FAN VALIDATION PROCEDURE 1 Ensure the hood is closed 2 Allow vehicle to idle 3 Switch ON air conditioning and set to lowest temperature and highest fan speed 4 Allow vehicle to reach operating temperature (approximately 90 degrees C). Using the manufacturer approved diagnostic system monitor datalogger signals – Engine Coolant Temperature (0XF405) -and -
Electric Fan PWM Control - Commanded (0X03F9) - as the engine coolant temperature reaches
operating temperature the fan speed should also increase between the values of 9 and 90% Did the cooling fan rotate at increasing speed as engine coolant temperature increased?
Yes
Return vehicle to customer
No
Contact dealer technical support DTC Index

For a list of diagnostic trouble codes (DTCs) that could be logged on this vehicle, please refer to Section 100-00.
REFER to: Electronic Engine Controls (303-14D Electronic Engine Controls - V8 S/C 5.0L Petrol, Diagnosis and Testing). www.JagDocs.com