| Vehicle sits too high and does not lower |
- Air suspension fault (permanent)
- Vehicle too low (occasional)
|
- Vehicle is in Transportation mode
|
- Check for DTC C2780
- The Jaguar approved diagnostic system is required to reconfigure the vehicle into customer mode
|
| None |
- Vehicle is in Jacking mode
(this does NOT
indicate a fault)
|
To verify, drive the vehicle to above 3 km/h (1.8 mph) to exit jacking mode and check for lowering. If the vehicle does not lower, the system must be tested using the Jaguar approved diagnostic system |
| Vehicle sits too low |
Vehicle too low (flagged when any corner is more than 60 mm too low) |
- Low spring pressure following chassis rework
- Spring airline failure
- Spring leakage
|
Run the engine and listen for the compressor operating:
- If the vehicle attempts to lift for 45 seconds, then flags C2302, check that air is being delivered to the air springs by disconnecting the Voss fittings at the springs
- If air is being delivered to the springs, check the springs for leakage
- If air is not being delivered to the springs, verify where air flow is restricted or lost in the air harness
- If the vehicle does not attempt to lift, the system must be tested using the Jaguar approved diagnostic system
|
| None |
The reservoir is depleted, and the vehicle is not below the compressor activation height (this does NOT
indicate a fault) |
- If safe, drive the vehicle steadily to above 40 km/h (25 mph) for a minimum 5 minutes. Bring the vehicle to a halt and check if the vehicle has lifted
- If the vehicle does not lift, the system must be tested using the Jaguar approved diagnostic system
|
| Vehicle gradually lowers while stationary |
None |
- Air spring leak
- Air harness leak
- Voss fitting leak
|
Check the air harness, springs and fittings for leakage. Rectify as necessary |
| Vehicle attitude is not flat after levelling |
None |
- Height sensor linkage/clip displaced
- Water ingress into the height sensor connector
|
- Visually inspect the height sensor linkage/clip. Rectify as necessary
- Check the connectors. Rectify as necessary
|
| Hard ride |
None |
- Tire pressures incorrect
- Non-standard wheels/tires
- Ride height incorrect
- Harness fault
- Air spring fault
|
Check/adjust the tire pressures. Make sure that the wheels and tires are to specification. Check the ride height. Refer to RIDE HEIGHT ADJUSTMENTS . Check for DTCs indicating a harness or system fault, refer to the DTC index. Check the air springs (see visual inspection). |
| Soft ride |
None |
- Tire pressures incorrect
- Ride height incorrect
- Air spring fault
|
Check/adjust the tire pressures. Check the ride height. Refer to RIDE HEIGHT ADJUSTMENTS . Disconnect the electrical connector from the suspect air spring and recheck. If the ride is still soft, install a new air spring. Refer to Front Air Spring (60.32.08) , Rear Air Spring - VIN Range: G00442->G45703 (60.32.10) , Rear Air Spring - VIN Range: G45704->G99999 (60.32.10) . |