Symptoms
Uneven ride height, suspension warning lights, or a truck that won't hold the height it's asked for. Height-sensor faults are one of the electrical causes of air-suspension trouble.
The fix, step by step
- Each corner has its own sensor linked to a suspension arm.
- Unplug it, unbolt the sensor and its link, fit the new one and check the arm moves freely.
- Repair a corroded plug with the harness repair kit rather than living with it.
- The suspension usually needs calibrating after a sensor is replaced; Gap's IIDTool offers an individual sensor calibration that doesn't need a level floor.
Tools & part numbers
- Basic sockets, dielectric grease, diagnostic tool for calibration
- LR020155 (FL) / LR020157 (FR) / LR020159 (RL) / LR020161 (RR)
Where to buy the parts
Hunting a used or discontinued part? Search eBay Motors for Land Rover LR3 / Discovery 3 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.