1998 JAGUAR X308 ECU

Engine - Exhaust Manifold RH
In-vehicle Repair
Removal
1. Open the engine compartment and fit paintwork protection
sheets.
2. Remove the air cleaner assemb ly. Refer to Section 303-12.
3. Remove the front silencer. Refer to Section 309-00.
4. Remove the downpipe catalytic converter, right hand side.
Refer to Section 309-00.

5. From above the vehicle, disconnect the EGR pipe from the
exhaust manifold.
1. Remove the two nuts whic h secure the EGR flange to
the right hand exhaust manifold.
2. Reposition the EGR pipe from the manifold.

6. Remove the bolts which secure th e front section of the exhaust
manifold to the cylinder head.

7. If working on a right hand drive vehicle; reposition the steering rack for access.
1. Remove the two bolts which secure the steering rack at the passenger side.
2. Loosen, but do not remove, the two bolts which secure the steering rack at the driver's side.
Reposition the steering rack for access.
8. Working from below the vehicle, remove the manifold bolts.
1. Remove the bolts which secu re the rear section of the
exhaust manifold to the cylinder head.

Installation


9. Remove the manifold.
1. Remove the manifold and the manifold gasket from the cylinder head.
2. Remove the gasket from the EGR flange.
10. If fitting a new manifold, remove the two studs from the EGR
flange of the manifold. and transfer them to the new manifold.
11. Clean the manifold faces (if refi tting) and the mating faces on
the cylinder head.
12. Use a thread tap (plug) to clean out the threads of the
manifold securing bolt holes, in the cylinder head.
1. Fit a spacer to each new manifo ld securing bolt (8 bolts).

2. Fit the manifold and manifold gasket.
1. Fit and align the new gasket to the cylinder head.
2. Fit and align the manifo ld to the cylinder head.
3. Fit the rear four bolts wh ich secure the manifold, but
do not tighten.
3. Working from above the vehicle, fit and tighten the remaining
manifold securing bolts.
4. Working from below the vehicle, fu lly tighten the rear bolts on
each manifold.
5. Refit the steering rack (if removed for access).
1. Reposition th e steering rack.
2. Fit and tighten the rack mounting bolts on the passenger side.

3. Tighten the rack mounting bolts on the driver's side.

6. From above the vehicle, connect the EGR pipe to the exhaust
manifold.
1. Fit a new EGR gasket to the manifold.
2. Reposition the EGR pipe to the manifold.
3. Fit the two nuts which secure the EGR flange to the exhaust manifold.
7. Fit the downpipe catalytic converter, right hand side. Refer to
Section 309-00.
8. Fit the front silencer. Refer to Section 309-00.
9. Fit the air cleaner assembly . Refer to Section 303-12.
10. Remove paintwork protection sheets and close the engine
compartment.

Engine - Exhaust Manifold LH and RH
In-vehicle Repair
Removal
1. Open the engine compartment and fit paintwork protection
sheets.
2. Remove the downpipe catalytic converter, right hand side.
Refer to Section 309-00.
3. Remove the downpipe catalytic co nverter, left hand side. Refer
to Section 309-00.
4. Remove the front silencer. Refer to Section 309-00.
5. Remove the air cleaner assemb ly. Refer to Section 303-12.

6. Working from above the vehicl e, remove the bolts which
secure the front sectio n of the left hand exhaust manifold to
the cylinder head.

7. Working from below the vehicle, reposition the steering rack
for access.
1. Remove the two bolts which secure the steering rack at the driver's side.
2. Loosen, but do not remove, the two bolts which secure the steering rack at the passenger side.
Reposition the steering rack for access.

8. Working from below the vehicl e, remove the manifold.
1. Remove the bolts which secu re the rear section of the
exhaust manifold to the cylinder head.
2. Remove the manifold and the manifold gasket.
9. From above the vehicle, disconnect the EGR pipe from the
right hand exhaust manifold.
1. Remove the two nuts whic h secure the EGR flange to
the right hand exhaust manifold.
2. Reposition the EGR pipe from the manifold.

10. Remove the bolts which secure the front section of the right
hand exhaust manifold to the cylinder head.

11. Working from below the vehicle, remove the manifold bolts.
1. Remove the bolts which secu re the rear section of the
exhaust manifold to the cylinder head.

12. Remove the manifold.
1. Remove the manifold and the manifold gasket from the cylinder head.
2. Remove the gasket from the EGR flange.
13. If fitting a new manifold, remove the two studs from the EGR
flange of the manifold. and transfer them to the new manifold.
14. Clean the manifold faces (if refitting), the EGR pipe flange
and the mating faces on the cylinder head.
15. Use a thread tap (M8 x 1,25 plug) to clean out the threads of
each manifold securing bolt hole, in the cylinder heads.

Installation

1.
Use new manifold securing bolt s and.fit a spacer to each.

2. Fit each manifold and manifold gasket.
1. Fit and align the new gasket to the cylinder head.
2. Fit and align the manifo ld to the cylinder head.
3. Fit the rear four bolts wh ich secure the manifold, but
do not tighten.
3. Working from above the vehicle, fit and tighten the remaining
manifold securing bolts.
4. Working from below the vehicle, fu lly tighten the rear bolts on
each manifold.

5. Refit the steering rack.
1. reposition the steering rack.
2. Fit and tighten the rack mounting bolts on the driver's
side.
3. Tighten the rack mounting bolts on the passenger side.

6. From above the vehicle, connect the EGR pipe to the right
hand exhaust manifold.
1. Fit a new EGR gasket to the manifold.
2. Reposition the EGR pipe to the manifold.
3. Fit the two nuts which secure the EGR flange to the exhaust manifold.
7. Fit the downpipe catalytic converter, left hand side. Refer to
Section 309-00.
8. Fit the downpipe catalytic converter, right hand side. Refer to
Section 309-00.
9. Fit the front silencer. Refer to Section 309-00.
10. Fit the air cleaner assembly . Refer to Section 303-12.
11. Remove paintwork protection sheets and close the engine
compartment.

Engine - Exhaust Manifold Gasket LH
In-vehicle Repair
Removal
Installation

1.
Open the engine compartment and fit paintwork protection
sheets.
2. Remove the front silencer. Refer to Section 309-00.
3. Remove the downpipe catalytic converter, left hand side. Refer
to Section 309-00.

4. Working from above the vehicle, remove the bolts which secure
the front section of the exhaust manifold to the cylinder head.

5. If working on a left hand drive vehicle; working from below the
vehicle, reposition the steering rack for access.
1. Remove the two bolts which secure the steering rack at
the driver's side.
2. Loosen, but do not remove, the two bolts which secure the steering rack at the passenger side.
Reposition the steering rack for access.

6. Working from below the vehicle, remove the manifold.
1. Remove the bolts which secu re the rear section of the
exhaust manifold to the cylinder head.
2. Remove the manifold and the manifold gasket.
7. Clean the manifold faces (if refi tting) and the mating faces on
the cylinder head.
8. Use a thread tap (plug) to clean out the threads of the manifold
securing bolt holes, in the cylinder head.
1. Installation is the reverse of removal. Use new gaskets and new
securing bolts for the manifold.

Engine - Exhaust Manifold Gasket RH
In-vehicle Repair 1. Open the engine compartment and fit paintwork protection
sheets.
2. Remove the air cleaner assemb ly. Refer to Section 303-12.
3. Remove the front silencer. Refer to Section 309-00.
4. Remove the downpipe catalytic converter, right hand side.
Refer to Section 309-00.

5. From above the vehicle, disconnect the EGR pipe from the
exhaust manifold.
1. Remove the two nuts whic h secure the EGR flange to
the right hand exhaust manifold.
2. Reposition the EGR pipe from the manifold.

6. Remove the bolts which secure th e front section of the exhaust
manifold to the cylinder head.

7. If working on a right hand drive vehicle; reposition the steering rack for access.
1. Remove the two bolts which secure the steering rack at the passenger side.
2. Loosen, but do not remove, the two bolts which secure the steering rack at the driver's side.
Reposition the steering rack for access.
8. Working from below the vehicle, remove the manifold bolts.
1. Remove the bolts which secu re the rear section of the
exhaust manifold to the cylinder head.