1998 JAGUAR X308 Amp

The front muffler assembly features:
Twin-pipe absorption type muffler. Pipe-to-pipe pres sure damping. Inlet and outlet pipes welded to the muffler. Front joints are flanged on supercharged engines and a flexible pipe (not removable separately ) is fitted behind each
flange - refer to the inset above.
Intermediate Muffler Assembly

The left- and right-hand intermedia te muffler assemblies comprise:
Absorption type muffler. Inlet and outlet pipes welded to the muffler.

Joints and Clamps

Pipe-to-pipe joints which are slip joints, feature:
Clamping by Torca strap clamp. Indicator rings providing Maximum, Mini mum and Nominal engagement marks.
Oxygen Sensor (O2)
Location

I
nstallation

7.
R
aise the vehicle on a ramp.

8. R
emove the downpipe catalytic converter.
R

emove the bolts which se
cure the downpipe lower
mounting bracket.
Remove the
downpipe assembly.

9. R
emove the oxygen sensor(s).
The downstream sensor i

s fitt
ed only for North American
markets.
10. Remove gasket from the manifold flange.
Clean and inspect th
e manifold joint faces.
Clean and inspect th

e threads
on the downpipe studs.
1. Fit the oxygen sensor(s).
The downstream sensor i
s fitt
ed only for North American
markets.

2. Fit a ne
w gasket to the mani
fold mating flange on the
downpipe.

3. Fit
the downpipe catalytic converter.
Fit the down
pipe assemb l
y to the manifold.
Fi
t,
but do not fully tighten, the mounting bracket securing

bolts. (Leave loose until the nu ts securing the downpipe to
the exhaust manifold are fitted.)
4. Lower the ramp.

5. Tighte
n the nuts securing the downpipe flange to the manifold
flange.

6. Connec t
the oxygen sensor multiplugs.
Con
n
ect the plug(s) to the respective (previously noted)
sensor(s).
Cor r
ectly position the multiplu
gs on the mounting bracket.
7. Fit the coolant header tank.
1. Reposition the tank and fit the securing nuts.

2.
Connect the harness connector

8. R
efit the centre trim panel and th
e left hand enclosure panel to
the engine compartment.
1. Refit the centre trim panel.
2. Refit the left hand enclosure panel.
9. Raise the ramp.

10
.
Tighten the mounting brac ket securing bolts.
11. Fit the front muffler; refer to Operation 30.10.18.
12. Lower the ramp.
13. Remove the paintwork protection sheets and close the engine
cover.

6. R
aise the vehicle on a ramp.

7. R
emove the bolts which secure
the rear of the front muffler
assembly to the transmission rear mounting.

8. R
emove the bolts which secure
the front flange of the front
muffler to the downpipe flange.
R
epeat for the flange bolt
s on the opposite side.

9. R
emove the gasket from the front
muffler flange at each side.
R
eposition the front silencer rearwards.
R

emove the gasket from each flange.

10
.
Remove the downpipe catalytic converter.
R
emove the bolts which se
cure the downpipe lower
mounting bracket.
Remove the
downpipe assembly.
11. Remove the oxygen sensor(s).
The downstream sensor i
s fitt
ed only for North American
markets.

In
stallation

12
. R
emove gasket from the manifold flange.
Clean and inspect th
e manif
old joint faces.
Clean and inspect th
e threads on th
e downpipe studs.

1. Fit
the oxygen sensor(s).
The downstream sensor i
s
fitt
ed only for North American
markets.
2. Fit a new gasket to the mani fold mating flange on the
downpipe.

3. Fit
the downpipe catalytic converter.
1. Fit the downpipe assembly to the manifold.
Fit,
but do not fully tighten, the mounting bracket securing

bolts. (Leave loose until the nu ts securing the downpipe to
the exhaust manifold are fitted.)
4. Lower the ramp.
5. Tighten the nuts securing the downpipe flange to the manifold
flange.

6. Connec
t the oxygen sensor multiplugs.
Con

nect the plug(s) to the respective (previously noted)
sensor(s).
Cor
rectly position the multiplu
gs on the mounting bracket.

7. F
it the coolant header tank.
1. Reposition the tank and fit the securing nuts.
2. Connect the harness connector

8. R
efit the centre trim panel and th
e left hand enclosure panel to
the engine compartment.
1. Refit the centre trim panel.
2. Refit the left hand enclosure panel.
9. Raise the vehicle on the ramp.
10. Tighten the mounting brac ket securing bolts.