300Tdi Discovery
ZF
11
REPAIR
CONTROL UNIT
Remove
1. Site vehicle on a four post ramp [hoist].
2. Disconnect battery negative lead.
3. Raise vehicle.
4. Drain oil and refit plug with new seal.
5. Detach heat shield at front exhaust pipe to
manifold.
6. Disconnect electrics from Lambda sensors.
7. Remove catalytic converter assembly.
8. Remove chassis cross-member from under
gearbox.
9. Disconnect dipstick tube at oil sump. Loosen
securing bolt at bell housing and move dipstick
aside.
10. Remove clamps securing oil sump. Note their
locations for refit and withdraw sump.
11. Remove gasket and clean gasket mating faces.
12. Remove securing screws and detach oil screen
and suction pipe, taking care to retain suction
pipe spacer, discard ’O’ ring seal.
13. Remove securing screws and detach control unit
from casing.
