oil type JAGUAR XJ6 1994 2.G Workshop Manual

Introduction i
Term(s) Abbreviation Definition
(if applicable)
GLOSSARY OF TERMS
Previously used term(s) (or Eng-
lish Equivalent)
indicates camshaft position
device designed to hold dry material, e.g.
evaporative emission canister
controls purging of the EVAP canister
colorless gas with a density of approximately
1.5 times that of air
poisonous gas produced as the result of
incomplete combustion
camshaft
I
CID
sensor,
Hall sensor
Camshaft
Position
Camshaft Position Sensor CMPS
canister
Canister Purge CANP
Carbon Dioxide
CO2
I Case Ground I CSEGND
Carbon
Monoxide
camber
CO
Canadian Motor Vehicle Safety
Standard
caster
Catalytic Converter
Celsius
center
I
CMVSS
C
centimeters
I cm
trail built in to the geometry of a steered
roadwheel to give
it a caster - self-steering -
effect
caster,castor
color
columnlmirror control module I C/M CM
charge current
Closed Loop
Closed Loop System
Clutch
clutch disc, clutch disk
clutch
throwout bearing
connecting rod bearing
CL
CLS
a shaft on which phased cams are mounted.
Usually used to regulate opening and closing
of engine cylinder head valves
current developed by the generator
control system with one or more feedback
loops
device which uses mechanical, magnetic or
friction type connections to facilitate
engaging or disengaging
two shafts or
rotating members charging
current
Control
module casing ground
inclination of the plane of a wheel to the
vertical plane
ofthe vehicle. May be negative
or positive.
Also convex curvature across road surface
bearing (usually split, plain) at the lower end
of the connecting rod where
it connects with
the crankshaft big
end bearing
in
-line exhaust
system device used to reduce
the level of engine exhaust emissions
SI term forthe Centigradescale, with freezing Doint at zero and boilina Doint at looo
I centre
I centimetres
friction disc of a clutch assembly clutch
plate,
centre plate,
diaphragm spring to release the clutch disc
I colour
Issue 1 August 1994 X300 VSM 9

Engine (AJ16)
3.1.2 ENGlNE/ TRANSMlSSlON UN/& RENEW
SRO 12.41.02/20
The engine/transmission unit on the AJ 16 normally aspirated and supercharged engined vehicles are fitted ontothree
engine mounting/bracket assemblies. The two front engine mountings for the 3.2/4.0 liter normally aspirated and the
4.0 liter supercharged engined vehicles are identical. They are fitted to the front crossmember on either side of the
engine bay. Rubber to metal
engine/transmission rear mounts used for both engine types, are secured to a support
bracket which traverses the two body underframe longitudinal members. For access to remove the engine carry out the following procedures:
WARNING: WHEN WORKING WlTHlN THE ENGINE COMPARTMENT, KEEP CLEAR OF THE RADIATOR COOLING
FANS AS THEY COULD START WITHOUT WARNING EVEN IF THE ENGINE IS NOT RUNNING.
. Remove the hood, see SRO 76.16.01, section 13
. Remove the air cleaner assembly.
. Depressurize the fuel system, see SRO 19.50.02, section 5.1.
Disconnect the battery.
. In line with the relevant SRO's and sections, remove all appropriate obstructing parts, including their fixing and
. Disconnect all mechanical and isolate all electrical linkages leading to and from the engine.
. De-gas the airconditioning system, see section 14, Charge Recovery (System depressurization).
mounting
arrangements.
CAUTION : Do not vent refrigerant directly to the atmosphere and always use Jaguar approved recovery/recycle/re- charge equipment.
. Drain the engine oil, see 3.1.3 this section.
. Drain the coolant, see SRO 26.10.01, section 4.1.
WARNING: DO NOT REMOVE THE HEADER TANK PRESSURE CAP WHILE THE ENGINE IS HOT. IF THE CAP MUST
BE REMOVED, PROTECT THE HANDS AGAINST ESCAPING STEAM AND SLOWLY TURN THE CAP ANTI- CLOCKWISE UNTILTHE EXCESS PRESSURE CAN ESCAPE. LEAVETHE CAP IN THIS POSITION UNTIL ALL
STEAM AND PRESSURE HAS ESCAPED AND THEN REMOVE THE CAP COMPLETELY.
Before lifting the complete engine/transmission unit with an engine hoist from the engine bay, ensure that two engine
lifting brackets (tool 18G. 1465) are secured equally spaced to the inlet manifold studs. The engine lifting brackets
should be positioned towards the front and the rear of the assembly. Ensure the front of the vehicle is jacked
up secure- ly on stands when removing the assembly.
e
0
0
X300 VSM Issue 1 August 1994 2

Engine (V12)
3.2.3 ENGINE OIL, RENEW
SRO 12.60.00
. Undo and remove the sump plug positioned at the rear of
the sump, drain the engine oil into a suitable receptacle
and dispose of
it in a safe and environmentally friendly
manner.
. Replenishtheengineoiltothecorrect level (1 Fig. 1) onthe
dipstick.
1ynfa: If the '0' ring on the on the filler cap is damaged, re- move the '0' ring and clean the groove. Secure a
new '0' ring in position using silicon sealant. Treat
the screw threads with copper grease, and grease
the top face of the oil filler with Hylosil lubricant.
When the oil is renewed, start the engine, wait for the oil
light to extinguish and switch off the engine for 30 sec- onds.
. Finally remove and wipe clean the dip stick
(Fig. l), check the oil level - replenish as necessary.
For recommended engine oil refer to Appendix AI. Fig.
1
3.2.4
OIL FILTER CARTRIDGE, RENEW
SRO 12.60.04
The white oil filter cartridge displaying the Jaguar logo, is lo- cated on the lower left-hand side of the engine, near side of
the sump. Access for removing the cartridge is from under- neath the vehicle (Fig. 2).
Remove the catalyst heat shield (where fitted) and use a coil
spring type filter wrench to remove the cartridge.
Start and run the engine for a few seconds to charge the
filter, then stop the engine and
checkthe oil level. Replenish
as necessary.
I Fig. 2
Issue 1 August 1994 X300 VSM 3
r

Automatic Transmission (AJ16)
8.1.1 GENERAL DESCRIPTION
’ This section provides information relating to the automatic transmissionsfitted to the 3,2 liter engine (ZF 4 HP 22 trans- mission) and the 4,O liter normally aspirated engine (ZF 4 HP 24 E transmission). The general arrangement of the two
units is shown in Fig. 1 and Fig. 2. The two automatic transmission units differ in the type of control unit employed:
the purely hydraulic control used in the ZF 4 HP 22 unit shifts gears automatically at predetermined points, while the
electronic-hydrauliccontrol oftheZF 4 HP 24 E unit providesforoptimized shift point sand shift quality based on engine
and transmission data received by the Transmission Control Module (TCM).
P \R J44-607
1. Torque converter 8. Shift lever positions:
2. Throttle cable
‘P - Park
3. 4
-speed gear train ‘R‘ - Reverse
4. Output flange ‘N’ - Neutral
5. Transmission control unit
6. Oil outlet (drain plug) 9. Dipstick/ oil filler tube
7. Shift cable attachment 10. Oil cooler connection
‘D‘
- Drive - Fully automatic
control
Fig. 1 ZF 4 HP 22 Transmission
X300 VSM 1 Issue 1 August 1994

Automatic Transmission (AJ16)
Both types of automatic transmission comprise a hydrodynamic torque converter driving an epicyclic gear train which
provides four forward ratios and reverse. Gearshift selection is made by a hydraulic (or electronichydraulic) trans- mission control unit. Six gearshift positions are provided:
Position
'P' (Park) -the driven wheels are mechanically locked at the transmission.
Position
'R' (Reverse) - reverse gear selected.
Position
'N' (Neutral) - engine disconnected from drive-line and wheels.
Position 'D' (Drive)
- all four speed ranges are selected automatically with lock-up available in top gear only.
Position
'3' - automatic selection of the lowest three speed ranges only.
Position '2'
- automatic selection of the lowest two speed ranges only; the transmission is prevented from shift- ing up to the third and top speed ranges.
Immediate selection of a lower ratio is also available, within mapped limits, by 'kick
-down' (pressing the accelerator
pedal down beyond the normal full throttle position) for example when overtaking.
A brake pedal/gearshift interlock is incorporated in the shift lever mechanism. Theshift lever may only be movedfrom
the 'P' (Park) position if the ignition key switch is in position 'll', and the foot brake is applied. The ignition key cannot
be removed from the ignition switch unless the shift lever is in the 'P' (Park) position. Once the ignition key has been
removed, the shift lever is locked in the Park position. The gearshift interlock may be over-ridden manually in the event
of an electrical failure or when it is required to move the vehicle manually for access, ie for removal of the propeller
shaft.
8.1.1.1
Gearshift selection causes the appropriate gear to be selected through a cable operated shift lever on the side of the
Gear Selection (ZF 4HP 22)
transmission unit. When a gea; is selected, the shift points are determined by accelerator pedal position through a
throttle cable connection and by pressures equivalent to road speed derived from a centrifugal governor on the output
shaft.
Gearshift speed and quality are controlled by the hydraulic control unit located in the lower part of the transmission
housing. The control unit contains selector valve, control pistons and pressure valves.
The hydraulic control unit can be overridden by 'kickdown'. This is actuated by the final travel of the accelerator pedal
and causes the next lower gear to be selected.
8.1.1.2
Gearshift selection causes the appropriate gear to be selected through a cable operated shift lever on the side of the
transmission unit; the shift lever also operates a rotary switch attached to the side of the transmission unit. When a
gear is selected, the rotary switch provides an output or combination of outputs to the TCM, which continuously moni
- tors the gear selected in addition to output shaft speed and transmission oil temperature. Information from the Engine
Control Module (ECM) representing engine speed, load and throttle position is also fed to the TCM to enable the most
suitable gear to be selected.
Gear selection and gearshift speeds are controlled by the manually operated selector valve, a solenoid operated pres
- sure regulator and three solenoid valves. On receipt of signalsfrom the TCM, the three solenoid valves MVI, MV2 and
MV3, in various combinations with the safety valve, determine the appropriate gear range. The TCM, on receipt of
information of engine state and road speed, determines the shift speed.
The Performance Mode switch, located on the shift lever surround, provides two alternative shift speed patterns:
1. 'Normal (Economy) Mode' - designed for everyday use.
2. 'Sport Mode'
- gear shift takes place at higher road speeds to enhance performance.
The 'kick
-down' switch, located beneath the accelerator pedal, is actuated by the final travel of the pedal and signals
to the TCM that the next lower gear is to be selected.
Gear Selection (ZF 4 HP 24 E)
X300 VSM 3 Issue 1 August 1994

10.1 STEERING SYSTEM DESCRIPTION
10.1.1 Steering Column Major Components
Integrated column assembly incorporating power, or manual, reach /tilt mechanism and lock.
Ignition switch.
Ignition interlock solenoid.
Key transponder coil.
Body attachment points.
Depending upon model, the steering column may be adjusted for
tilt and reach, either by electrical or manual means.
Power variants may be either automatically or manually adjusted and all types have the entry / exit feature.
10.1.2 Steering Column Operating Principle
Power Adjust: Two independent motor / gearbox assemblies provide infinite adjustment for reach and height within
approximate ranges of 35mm and
13O respectively. Adjustments may be automatically made in conjunction with the
seat memory facility or manually when the adjustment switch is used. It should be noted that selection of 'Off will
disable the automatic entry / exit mode.
Manual Adjust: The cable operated reach adjustment is infinite within a range of 35mm, with the desired position being
fixed
by a rack and wedge. Tilt variations are stepped at approximately 3O intervals with 6 positions being available,
the uppermost being unlatched.
From the uppermost position the column may be pulled down to engage the first detent without using the
tilt lever.
WARNING: MANUAL ADJUST ONLY: TO AVOID PERSONAL INJURY, COLUMN UPWARD TRAVEL SHOULD BE MAN- UALLY RESTRAINED TO CHECK UPWARD SPRING ASSISTANCE. THIS IS ESPECIALLY IMPORTANT IF
THE STEERING WHEEL HAS BEEN REMOVED FOR MAINTENANCE REASONS.
WARNING: ALL TYPES; DO NOT REMOVE THE STEERING COLUMN FROM THE VEHICLE WITH THE STEERING
WHEEL ATTACHED UNLESS THE STEERING
IS CENTERED AND THE COLUMN LOCK IS ENGAGED. IFTHE
SERVE THIS MAY RESULT IN AN INOPERATIVE AIRBAG SYSTEM. SEE LABEL ON STEERING WHEEL
HUB. LOCK IS TO BE RENEWED, 'LOCK-WIRE THE ASSEMBLY TO PREVENT ROTATION. FAILURE TO OB-
0
X300 VSM 1 Issue 1 August 1994
J57-27L
3 Ignition switch 1 1 Tilt motor 2 Tilt motor flexible coupling 4 Reach motor
Fig.
1 Major components Power operated steering column

Body Components & Trim a
13.7.4
Localized stains caused by accidental spillage may be one of three types:
0 Water based stainscaused byfoodstuffs,starches, sugars, soft drinks,fruit stains, washable inketc. These stains
adhere readily to the pile and do not respond to vacuum cleaning. They are best removed immediately using
the procedure detailed below.
0 Oil /grease based stains caused by spillage or other contamination by butter, grease, hand cream, ball point pen
ink, crayon, lipstick etc.
0 A combination of both these types.
Spot Cleaning - Localized Stains
To remove water based stains:
. Blot up liquids and /or scrape off semi-solids using a spatula.
. Sponge the affected area with clean luke-warm water. Use a clean, damp, undyed, cotton cloth to absorb as much
. If the stain persists, apply a suitable carpet shampoo solution made up to the manufacturers instructions, again work-
= Rinse with clean, warm water, taking care not to over-wet the carpet.
Absorb excess moisture by laying dry, undyed cloths or white paper towels over the moist carpet under light pres-
. When the carpet is thoroughly dry, vacuum clean the area to lift the carpet pile.
CAUTION: When liquids are applied to the pile, use only a clean cloth or sponge. Do not apply liquids directly to the
carpet - when attempting to remove stains, blot the pile as heavy rubbing can destroy the yarn structure of the carpet.
of the moisture as possible, working from the edge to the centre of the stain.
ing from the edge to the centre of the stain.
sure; replace when necessary.
To remove oil /grease based stains:
. Using a suitable aerosol containing solvent loaded with absorbent powder, spray the affected areas of the carpet.
= Allow the solvent to evaporate and remove the powder containing the grease by using a vacuum cleaner or brush.
m:
CAUTION: Solvents must only be used in well-ventilated areas where naked lights and smoking are prohibited.
The solvent loosens the grease from the fibre and the powder then absorbs the grease-carrying solvent.
Neat solvent, eg dry cleaning
fluid, may be used, but should be used sparingly from a clean white cloth.
To remove stains which are a combination of oil and water based contamination (usually resulting from food or drink):
. Treat combination stains as for water based stains.
. Allow to dry out.
. Treat as for grease based stains.
Issue 1 August 1994 46 X300 VSM

Climate Control Systems
Description U-
HFC 134A - ICI Klea or
equivalent
Polyalkyleneglycol (PAG) Compressor lubricant
Refrigerant
111.
Notes
Recyclable. NOT
compatible
with CFC 12
Absorbs water readily. NOT
compatible with mineral based
oils
SERVICE MATERIALS
Standard for Recovery I Recycle 1 Recharge Equipment.
Recovery rate
Cleaning capability
Oil separator
.Moisture indicator
Vacuum pump
Filter Replaceable with moisture indicator
Charge Hoses
Feature Requirement
0,014 - 0,062 m3 / min. (1,36 kg in 20 minutes)
15 parts per million (ppm) moisture; 4000 ppm oil; 330 ppm non condensable gases
in air
With hermetic compressor and automatic oil return
Sight glass type, sensitive to 15 ppm minimum
2 stage 0,07 - 0,127 m3 I min.
Selectable charge weight and automatic delivery
Dedicated HFC 134A port connections.
Iv. SERVICE DATA
Application
Charae weight
Lubricant capacity
Compressor pressure relief valve
Drive belt 12 cylinder
Drive belt tension
All figures apply to a cold belt
Special note
Drive belt tension measuring point
Drive belt 6 cyclinder
Drive belt tension
All figures apply to a cold belt
Drive belt tension measuring point
Specification
160 - 200 ml
Opening point 34 Bar. Closing point 27,6 Bar.
Maximum leakage rate of 113 liters 1 minute @ 41 Bar
7 rib Poly
-vee; 1450 mm long
Burroughs method
- New belt 790 N; If tension falls
below 270 N reset at 630 N
Clavis method
- New belt 114 to 120 Hz; If tension falls
below 70 Hz reset at 87 to 93 Hz
For new belt; rotate engine 3 revolutions minimum and
retension
Mid-way between crankshaft and compressor pulley ~
4
rib Poly-vee X 1010 mm long
Burroughs method
- New belt 556 to 578 N; If tension
falls below 245 N reset at 378 to 400
N
Clavis method - New belt 167 to 173 Hz; If tension falls
below 85 Hz reset at 127 to 133 Hz
Mid
-way between crankshaft and compressor pulley on
the upper run
1 Charge pressure I Heating element to increase pressure
Issue 1 August 1994 X300 VSM iii

Climate Control Systems
0 Because HFC 134A is fully recycleable it may be 'cleaned' by the recovery equipment and re-used following
removal from a system.
0 Leak tests should only be carried out with an electronic analyzer which is dedicated to HFC 134A. Never use a CFC 12 analyzer or naked flame type.
0 Do not attempt to 'guess' the amount of refrigerant in a system, always recover and recharge with the correct
charge weight. In this context do not depress the charge or discharge port valves to check for the presence of
refrigerant.
14.1.3 Handling Lubricating Oil
0 Avoid breathing lubricant mist, it may cause irritation to your respiratory system.
0 Always decant fresh oil from a sealed container and do not leave oil exposed to the atmosphere for any reason
other than to fill or empty a system. PAG oil is very hygroscopic (absorbs water) and will rapidly become con-
taminated by atmospheric moisture.
PAG oil is
NOTcompatible with previously used mineral based oils and must NEVER be mixed (Fig. 1). Do not
re
-use oil when it has been separated from refrigerant, following a recovery cycle. Dispose of used oil safely.
14.1.4 System Maintenance
0 When depressurizing a system do not vent
refrigerant directlyto atmosphere, always use Jaguar
approved recovery equipment.
0 Always decant compressor oil from a sealed con- tainer and do not leave oil exposed to the atmosphere
for any reason other than to fill or empty
a system.
PAG oil is very hygroscopic and will rapidly become
contaminated by atmospheric moisture.
0 Plug pipes and units immediately after disconnection
and only unplug immediately priorto connection. Do
not leave the system open to atmosphere.
0 It is not necessary to renew the receiver drier when- ever the system has been 'opened' as previously ad-
vised - see note this page. However,if a unit or part
of the system is left open for more than five minutes,
it may be advisable to renew the receiver drier. This
guidance is based on
U.K average humidity levels;
therefore, locations with lower humidity will be less
critical to moisturecontamination of the unit.
It must
be stressed that there is not
a 'safe' period for workto
be carried out in: ALWAYS plug pipes and units im-
mediately after disconnection and only remove plugs
immediately prior to connection.
J82-387
Fin. 1
U: The receiver / drier MUST be renewed if the compressor has failed or if it is suspected that debris may be in
the system.
0 If replacement parts are supplied without transit plugs and seals DO NOT use the parts. Return them to your
supplier.
0 Diagnostic equipment for pressure, mass and volume should be calibrated regularly and certified by a third
party organization.
0 Use extreme care when handling and securing aluminium fittings, always use a backing spanner and take
special care when handling the evaporator.
0 Use only the correct or recommended tools for the job and apply the manufacturer's torque specifications.
Issue 1 August 1994 2 X300 VSM

Climate Control Systems
0 14.9 GENERAL SYSTEM PROCEDURES
14.9.1 Leak Test
Faults associated with low refrigerant charge weight and low pressure may be caused by leakage. Leaks traced to
mechanical connections may be caused by torque relaxation or joint face contamination. Evidence of oil around such
areas is an indicator of leakage. When checking for non visible leaks use only
a dedicated HFC 134A electronic analyzer
and apply the probe all round the joint / connection.
Should a leak betraced to a joint,checkthatthefixing issecuredtothecorrecttightening torque before any other action
is taken.
Do not forget to check the compressor shaft seal and evaporator.
CAUTION : Never use a dedicated CFC 12 or naked flame type analyzer.
14.9.2 Charge Recovery (System depressurization)
The process of HFC 134A recovery will depend on the basic characteristics of your chosen recovery/ recycle I recharge
equipment, therefore, follow the manufacturer's instructions carefully.
Remember that compressor oil may be drawn
out of the system by this process, take note of the quantity recovered
so that it may be replaced.
CAUTION: Observe all relevant safety requirements.
Wear suitable eye and skin protection
Do not mix HFC 134A with CFC 12. Do not vent refrigerant directly to atmosphere and always use Jaguar approved recovery I recycle I re- charge equipment.
Take note of the amount of recovered refrigerant, it will indicate the state of the system. 0
14.9.3 Evacuating the System
This process, the removal of unwanted air and moisture, is critical to the correct operation of the air conditioning sys-
tem. The specific procedures will vary depending on the individual characteristics of your chosen recovery I recycle / recharge equipment and must be carried out exactly in accordance with the manufacturers instructions. However,
it is recommended that the initially only the HIGH side valve be opened at the start of the procedure. After a short time a small depression should be seen on the LOW side, at which point the LOW side valve may be opened and the evacu- ation process completed. If a vacuum is not registered on the LOW side it may indicate that the expansion valve is
jammed closed or that the system is blocked. This simple check may save time and effort when the system is re- charged.
Moisture can be highly destructive and may cause internal blockages due to freezing, but more importantly, water sus- pended in the PAG oil will damage the compressor. Once the system has been opened for repairs, or the refrigerant
charge recovered, all traces of moisture MUST be removed before recharging.
14.9.4
The amount of oil drawn out during a recovery procedure will be dependent on the state of the system and the rate
of recovery. The quantity will be approximately 30 to 40 ml; this may vary, and the figure is given only for guidance.
The oil separator vessel in the recovery equipment must be clean and empty
at the start of the process so that the quan- tity of oil which is drawn out may be accurately measured.
Oil may be added by three methods,
1 and 2 being direct into the system and 3 with the compressor off the vehicle;
1. Via the recovery I recycle 1 recharge station.
2. Proprietary oil injector.
Adding Lubricating Oil - Compressor Related
1ynfa: Equipment manufacturer's instructions must be adhered to when using direct oil introduction.
3. Directly into the original, or new unit, because of rectification work to the existing compressor, or the need to fit a new compressor.
Original
From an existing compressor, drain the oil into a measuring cylinder and record the amount. Flush the unit out
with fresh PAG oil and drain thoroughly, Replenish the compressor with the same amount of PAG oil that was
originally drained out and immediately plug all orifices ready for refitting to the vehicle.
X300 VSM 13 Issue 1 August 1994