Amp JAGUAR X308 1998 2.G Workshop Manual

Bumpers - Rear Bumper Cover
Removal and Installation
Removal
Installation
1. Position vehicle on 4-post lift.
2. Remove battery cover and disc onnect ground cable from
battery terminal. Refer to 86.15.19.
3. WARNING: THE REAR BUMPER IS CLOSE TO THE
EXHAUST PIPES WHICH MAY BE HOT. CARE MUST THEREFORE BE
EXERCISED WHEN WORKING IN THIS VICINITY.
Raise vehicle to working height.

4. If fitted, disconnect sidemarker lamp harness multiplugs and
position clear of armatures.

5. Slacken and remove bumper to strut securing bolts.
6. With assistance, carefully slide bumper clear of guide blocks
and remove from vehicle.

1. Release retaining clips and remo ve sidemarker lamps/reflectors from bumper.
2. Remove bumper blades.
1. Slacken and remove three screws securing each blade

Installation



to bumper cover.
2. Slide each blade forward to release three side tangs from cover and remove blades from bumper.
3. Drill out rivets securing cover to bumper beam.
4. Withdraw cover from bumper beam.
1. Position cover over bumper beam and secure with new fir tree
fasteners and rivets.
2. Fit and fully seat sidemarker lamp s/reflectors in bumper cover.
3. Fit chrome blades to top of cover locating tangs in slots and fit
and tighten securing screws.
4. Fit bumper assembly to vehicle. Refer to operations in this
section.
5. Fit ground cable to battery terminal and fit battery cover. Refer
to 86.15.15.

Generally, resistance spot welding equipment used in the motor vehicle repair industry does not produce welds of equivalent strength to those achieved during manufactu re. The expression 'single row of resistance spot welds' indicates that the spots
should be spaced on a pitch of 19mm to 25mm, which normally results in mo re spot welds than those produced in the
original factory joint.
Resistance spot welds should be removed using a resistance spot weld cutter. If the new joint is to be MIG plug welded, old
resistance spot welds should be cut from the panel to be reta ined and the resulting holes used for plug welding. Suitable
holes may also be drilled or punched; 8,0 mm dia for sect ions up to 1,6 mm, and 10,0 mm dia for thicker sections.
PLASTICS-EXPLANATORY NOTES
Plastic component and trim materials
This table, in conjunction with the illu strations on the following pages will enable rapid identification of the particular
material of any major plastic part.
• NOTE: Only those components suitable for economic reclamation are identified.
Plastics - Handling Notes
The exterior panel temperature of a vehicle must not exceed 95°C at any time and may only be held at this level for a
maximum of two hours. Similarly, interior vehicle temperatur e must be limited to 86°C for a maximum duration of two
hours. Exposure to temperatures above those specified may result in distorted or permanently damaged components. If
there is doubt concerning temperature limitations, components that may be adversel y affected by exposure to heat should
be removed from the vehicle.
Plastic components that become greasy may be clea ned with an 'SBP 3' spirit wipe, or equivalent.
Recycled Materials
Any of the materials listed in this section, may be recycled provided that they ar e not contaminated by other incompatible
plastics or metals. For instan ce, the air conditioning unit case, manufactur ed from PP (polypropylene), must be separated
from the heater matrix, evaporator, contro l devices (electronic and mechanical) and all fixings before it can be considered
for recycling. After removal, the case mu st only be placed for disposal with materials of the same generic type. Bumper
cover assemblies similarly have side arma tures of dissimilar materials rivetted to them, these together with their fixings
must be removed prior to recy cling. Components manufactured from 'blended' materials must not be recycled with pure
materials. For example do not mix PC/ABS (wheel trim) with ABS ('B' pillar upper trim).
Plastics, Component Location and Type - External
TermMaterial Name
absAcrylonitrile Butadiene Styrene
abs / paAcrylonitrile Butadiene Styrene and Polyamide (nylon) blend
abs / pcAcrylonitrile Butadiene Styrene and Polycarbonate blend
ABS / PBTAcrylonitrile Styrene Acrylate and Polybutylene Terephthalate
paPolyamide (nylon)
pcPolycarbonate
pePolyethylene
pmmaPolymethyl Methacrylate
pomPolyoxymethylene (acetal)
ppPolypropylene
ppoModified Polyphenylene Oxide
purPolyurethane
pvcPolyvinylchloride
SMAStyrene Maleic Anhydride

Body Structure
Introduction
The standard wheelbase Jaguar sedan has a unit construction monocoque body structure with bolt-on front fenders and
welded rear fenders. The doors feature lif t-off hinges and welded drop-glass frames.
Constructional Steel Classification
BODY ALIGNMENT
The Body Dimensions Plan, and Body Dimensions Side View, provide specified BIW dimensions to facilitate damage
assessment and location of replacemen t parts. These dimensions must be strictly applied when used for damage
assessment, component location or post repair verification.
• NOTE: The right-hand side is always looking towards the front, from the rear of the vehicle.
The nominated plan view master datums are on the right-hand side of the body with the left-hand datums dimensioned
from them. Right-hand datums must therefore be known to be correct before any other cross-car dimensions are checked.
Datum location, Example
The Front Master Datum (front crossmember rear mounting at the inner face of the main floor RH longitudinal) is nominally
359,5mm to the right-hand side of the body center line. The LH side fron t datum is measured 717,0 / 721,0mm from the
RH. Refer to the Body Dimensions Plan.
Expressed as a true posi tion in three planes, the front master datum is:
Standard Wheelbase Bo dy Dimensions-Plan
MaterialApplication
High strength low alloy
(HLSA).Impact prone areas, ie. seat frame and bumper mountings.
Double sided zinc plated mild steel.Exterior body panels subject to severe cond itions such as stone chipping and weather
exposure (excluding roof panel).
Boron steelDoor intrusion beams
Mild steel.Internal brackets, fill ets and strengtheners.
DatumLocationPosition
Front Master Datum
PlanCentre line of the front crossmember rear mounting, at the main floor RH
longitudinalX
300,0
Y 359,5 Z -50,0

Key to Plan
Standard Wheelbase Body Dimensions- Side View
KeyLocation
1Front face body-bumper strut/mounting point
2Rearmost hole, vee-mount to crush tube
3Front Master Datum Plan, centre li ne of front crossmember rear mount ing at main floor RH longitudinal
4Rearmost hole, transmission mounting at main floor RH longitudinal
5Handbrake rear lever bracket fixings
6Rear Master Datum Plan, rear longitudinal
7Tapped boss, rear suspension 'A' frame mounting bush
8Rear suspension spring-pan damper mounting
9Rear suspension differential strut mounting
10Rear face body-bumper strut/mounting point
11Driveshaft centre bearing mounting

Key to SideView
Long Wheelbase Body Dimensions-Plan
KeyLocation
1Front face body-bumper strut/mounting point
2Front Master Datum Vertical, centre line of front crossmember rear mounting
3Transmission mountings at the main floor longitudinal
4Handbrake rear lever bracket fixings
5Rear Master Datum Vertical,, rear longitudinal
6Tapped boss, rear suspensi on 'A' frame mounting bush
7Rear suspension spring-pan damper mounting
8Rear suspension differential strut mounting
9Rear face body-bumper strut/mounting point
10Wheel centre to bumper cover face
11Wheelbase
12Wheel Centre to Bumper Cover Face
13Driveshaft centre bearing mounting

Key to Plan
Long Wheelbase Body Dimensions- Side View
KeyLocation
1Front face body-bumper strut/mounting point
2Rearmost hole, vee-mount to crush tube
3Front Master Datum Plan, centre line of front crossmember rear mount ing at main floor RH longitudinal
4Rearmost hole, transmission mounting at main floor RH longitudinal
5Handbrake rear lever bracket fixings
6Rear Master Datum Plan, rear longitudinal
7Tapped boss, rear suspension 'A' frame mounting bush
8Rear suspension spring-pan damper mounting
9Rear suspension differential strut mounting
10Rear face body-bumper strut/mounting point
11Driveshaft centre bearing mounting

Key to SideView
KeyLocation
1Front face body-bumper strut/mounting point
2Front Master Datum Vertical, centre line of front crossmember rear mounting
3Transmission mountings at the main floor longitudinal
4Handbrake rear lever bracket fixings
5Rear Master Datum Vertical,, rear longitudinal
6Tapped boss, rear suspensi on 'A' frame mounting bush
7Rear suspension spring-pan damper mounting
8Rear suspension differential strut mounting
9Rear face body-bumper strut/mounting point
10Wheel centre to bumper cover face
11Wheelbase
12Wheel Centre to Bumper Cover Face
13Driveshaft centre bearing mounting

a pneumatic saw (3).
• NOTE: On some panels, before removing the bulk with a pneumatic saw, it may be necessary to remove brazed areas and
MIG welded seams. Separate spot welded joints and remove the panel remnants.
Removal of Panels and Welds

PREPARATION OF PANEL SURFACES
WARNING: DO NOT BURN UNDERSEAL OFF. USE A 'HOT KNIFE' OR SUITABLE SOLVENT.
• NOTE: Observe all appropriate safety procedures.
Remove weld nuggets with a sander and 36 gr it disc and clean all flanges to a bright smooth finish (1). Straighten existing
panel joint edges as required.
Mark off the area of new panel and cut to size leaving approxim ately two inches overlap on the existing panel. Offer up new
panel or section, align with associated pa rts, i.e. new rear fender aligned with door / luggage compartment lid / backlight
aperture and clamp the panel into positi on.Where necessary, cut the new and orig inal panels to form a butt joint.
Release all clamps and remove the new panel. If required, apply inner panel protection and or sound insulation.
Prepare the new panel joint edges, including interior and exterior, for welding by cleaning to bright metal (1).
Apply weld-through primer or in terweld sealer(2) to all surfaces to be resistance spot welded.
Where appropriate, apply metal- to-metal adhesive or sealer (3) in accordance with the manufacturer's instructions.

Panel Surface Preparation

ALIGNING AND WELDING PANELS
• NOTE: Observe all appropriate safety procedures.
Apply appropriate sealer or joint preparation.
Align the replacement panel with adjacent panels, secure with clamps, MIG tack welds or self tapping screws. Finally check
panel alignment and contours and re-adjust as necessary.
Select the correct 'arms' for resistance spot welding and ensure that tips are correctly trimmed.
• NOTE: It is recommended that 'arms' of not more than 300 mm (12 in.) long ar e used and the equipment is tested for
satisfactory operation by producing test samples (2). In the ab sence of test equipment, a satisfactory weld can be verified
by pulling the test sa mples apart and viewing the weld condition.
Prepare zinc coated panels as detailed in this section and resistance spot weld where required (3).
Dress back all tack welds, then MIG seam-weld the butt joints (4). Finally dress all welds as necessary and final braze and
fill prior to paint preparation.
Ali
gning and Welding Panels