Discovery 2. Manual — part 450

EMISSION CONTROL - TD5

REPAIRS 17-1-15

Valve - EGR - EU3 models

$% 17.45.01

Remove

1. Release turnbuckles and remove battery cover.
2. Disconnect battery earth lead.
3. Remove 3 bolts and remove engine acoustic

cover.

4. Remove cooling fan coupling.

+

COOLING SYSTEM - Td5, REPAIRS,

Fan - viscous.

5. Disconnect vacuum hose(s) from EGR valve.
6. Loosen clip screw and disconnect air intake

hose from EGR valve.

7. Remove screw and remove clamp securing

EGR pipe to EGR valve.

8. Remove 4 bolts securing EGR valve, remove

valve and discard gasket.

9. Discard EGR pipe gasket.

Refit

1. Clean EGR valve and mating faces.
2. Fit new gasket to EGR pipe.
3. Using new gasket, position EGR valve to inlet

manifold fit bolts and tighten to 10 Nm (7 lbf.ft).

4. Fit EGR pipe clamp and tighten screw to 6 Nm

(4.4 lbf.ft).

5. Connect air intake hose to EGR valve and

tighten clip.

6. Connect vacuum hoses to EGR valve.
7. Fit cooling fan coupling.

+

COOLING SYSTEM - Td5, REPAIRS,

Fan - viscous.

8. Fit engine acoustic cover and tighten bolts to

10 Nm (7 lbf.ft).

9. Connect battery earth lead.

10. Fit battery cover and secure the fixings.

EMISSION CONTROL - TD5

17-1-16 REPAIRS

EMISSION CONTROL - V8

DESCRIPTION AND OPERATION

17-2-1

EMISSION CONTROL - V8

DESCRIPTION AND OPERATION

Crankcase emission control system

1 Intake air
2 LH rocker cover breather tube
3 Oil separator in RH rocker breather tube

EMISSION CONTROL - V8

17-2-2

DESCRIPTION AND OPERATION

Exhaust emission control

1 RH catalytic converter
2 Heated oxygen sensors – post-catalytic

converter (2 off – NAS only)

3 LH catalytic converter
4 Heated oxygen sensors – pre-catalytic

converter (2 off)