300Tdi Discovery
MFI
3
REPAIR
IDLE AIR CONTROL VALVE
Service repair no - 19.22.54
Remove
1. Disconnect battery negative lead.
2. Disconnect multi-plug.
3. Unscrew valve from rear plenum chamber.
4. Remove washer.
Refit
5. Fit NEW sealing washer.
NOTE: If same idle air control valve is
being refitted clean sealing compounds
from threads. Apply Loctite 241 to threads
of valve before reassembly.
6. Tighten valve to
20 Nm.
7. Reverse removal procedure.
VEHICLE SPEED SENSOR
Service repair no - 88.30.14
The vehicle speed sensor is located in the LH side of
the transfer box.
Remove
1. Place vehicle on lift, apply parking brake.
2. Disconnect battery negative lead.
3. Raise lift, disconnect multiplug from vehicle
speed sensor.
4. Remove screw securing sensor to transfer box.
5. Remove vehicle speed sensor
Refit
6. Reverse removal procedure.
