wiper fluid LAND ROVER DISCOVERY 2002 User Guide

WIPERS AND WASHERS
84-14 DESCRIPTION AND OPERATION
Front washer pump
The front washer pump consists of a DC motor with an impeller. It is located in the rear of the washer fluid reservoir
and can be identified by its black top.
Operating the front washer switch provides battery voltage to the front washer pump. This same battery voltage signal
also goes to the BCU and increments the headlamp powerwash counter providing the headlamps are switched on.
Rear washer pump
The rear washer pump consists of a DC motor with an impeller. It is located in the rear of the washer fluid reservoir
and can be identified by its red top.
Operating the rear washer switch provides battery voltage to the rear washer pump.

WIPERS AND WASHERS
DESCRIPTION AND OPERATION 84-15
Headlamp powerwash pump
The headlamp power wash pump consists of a DC motor with an impeller. It is located on the front of the washer fluid
reservoir.
The BCU controls operation of the headlamp power wash relay, which supplies battery voltage from fuse 4 located in
the engine compartment fuse box to the headlamp power wash pump. When the BCU determines headlamp power
wash is to be activated, it provides a ground path for the coil of the headlamp power wash relay. The auxiliary relay
located in the engine compartment fuse box supplies the headlamp power wash relay coil with battery voltage.

WIPERS AND WASHERS
REPAIRS 84-19
REPAIRS
Reservoir - washer - up to 03MY
$% 84.10.03
Remove
1.Remove front grille.

+ EXTERIOR FITTINGS, REPAIRS,
Grille - front - up to 03MY.
2.Remove front bumper assembly.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
3.Disconnect multiplug from headlamp washer
pump.
4.Identify multiplugs for refit and disconnect from
rear screen and windscreen washer pumps.
5.Identify hoses for refit and disconnect hoses
from rear screen and windscreen washer
pumps.
6.Release clip securing washer hose to
headlamp washer pump. 7.Remove 2 nuts and 1 bolt securing reservoir,
release reservoir from filler neck and remove
reservoir assembly.
8.Remove filler neck grommet.
NOTE: Do not carry out further dismantling if
component is removed for access only.
9.Remove fluid level indicator.
10.Remove washer pumps from reservoir,
remove and discard pump seals.
Refit
1.Use new seals and fit washer pumps to new
reservoir.
2.Fit filler neck grommet to reservoir.
3.Fit level indicator into filler neck.
4.Fit reservoir assembly and secure with nuts
and bolt.
5.Connect hoses to rear screen pump,
windscreen washer pump and headlamp
washer pump. Secure hoses with clips.
6.Identify and connect multiplugs to washer
pumps.
7.Fit front bumper assembly.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
8.Fit front grille.

+ EXTERIOR FITTINGS, REPAIRS,
Grille - front - up to 03MY.
9.Refill reservoir

+ MAINTENANCE, PROCEDURES,
Wipers and washers.

WIPERS AND WASHERS
REPAIRS 84-21
Jet - washer - windscreen
$% 84.10.08
Remove
1.Carefully pull the elbow from the washer jet.
2.Place a protective covering around the washer
jet, then release and remove washer jet.
Refit
1.Fit washer jet to its location in the bonnet, and
remove the protective material.
2.Connect the washer tube, ensuring that it is
pushed fully onto the stub pipe.
Pump - washer - screen and headlamp
$% 84.10.21
The following procedure also covers removal of the
rear screen washer pump and the headlamp washer
pump.
Remove
1. Headlamp washer pump: Remove front
bumper.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
2. Front and rear screen washer pumps:
Remove 7 screws securing LH front wheel arch
liner extension to liner and bumper valance and
remove liner extension.
3.Position container under washer reservoir to
collect fluid spillage.

WIPERS AND WASHERS
84-22 REPAIRS
4.Disconnect multiplug from washer pump.
5.Release clip and disconnect washer hose from
washer pump.
6.Remove washer pump from reservoir and
remove and discard pump seal.
Refit
1.Use a new seal and fit pump to reservoir.
2.Connect hose to pump and secure with clip.
3.Connect multiplug to pump.
4. Front and rear screen washer pumps:Fit
wheel arch liner extension, secure to bumper
valance and liner with screws.
5. Headlamp washer pump:Fit front bumper.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
6.Fill reservoir with washer fluid.
Motor and linkage - wiper - windscreen
$% 84.15.11
Remove
1.Remove plenum air intake.

+ HEATING AND VENTILATION,
REPAIRS, Plenum Air Intake.
2.Remove 4 nuts and one bolt securing motor
mounting plate to body.
3.Remove nut and bolt securing linkage to body.
4.Release motor and linkage from body and
disconnect multiplug from windscreen wiper
motor.
5.Remove motor and linkage.