L322 Range Rover Service Procedures
FRONT SUSPENSION
ADJUSTMENTS
60-1
FRONT SUSPENSION
ADJUSTMENTS
Air suspension system - depressurise
and repressurise
$% 60.50.38
Depressurise
1. Depressurise suspension using TestBook/T4.
WARNING: The air suspension system is
pressurised up to:
l
Up to VIN 106309 - 13.7 Bar (199 lbf/in
2
)
l
From VIN 106310 - 11.8 Bar (171 lbf/in
2
)
WARNING: Ensure dirt or grease does not
enter the system. Wear hand, ear and eye
safety protection when working on the
system.
Repressurise
1. Repressurise suspension using TestBook/T4.
CAUTION: The air springs must be fully
pressurised before the weight of the vehicle
is applied to them.
Calibrate - air suspension
$% 60.90.03
The air suspension system calibration must be
carried out after the following components have been
replaced:
l
Air suspension ECU
l
Height sensor
l
Body panels incorporating suspension fixing
points.
Check
1. Connect Testbook/T4 to the vehicle and select
air suspension calibration.
WARNING: Always wear hand, ear and eye
protection when working on the air
suspension system.
Adjust
1. Observe the following cautions before
calibrating the air suspension system.
CAUTION: The vehicle can be calibrated
laden or unladen, but gross vehicle weight
must not be exceeded. Tyres must all be the
same size and set at the correct pressures.
CAUTION: Ensure the floor used for
calibration is level and smooth in all
directions to enable calibration to be carried
out successfully.
2. Release handbrake and move gearbox selector
to 'N' position.
3. Roll vehicle backwards and forwards to relieve
stresses in the steering and suspension.
4. Return gearbox selector to 'P' position.
5. Using Testbook/T4 calibrate the air
suspension.
6. Models with Xenon headlamps: After
calibrating the air suspension, use Testbook/T4
to reset the headlamp levelling ECU and adjust
the headlamps.
CAUTION: Failure to adjust the headlamps
using Testbook/T4 will result in the
incorrect setting of the headlamp
alignment.
7. Check/adjust headlamp alignment.
8. Disconnect TestBook/T4 from the vehicle.
