Hours:
Open Today Sales: 8:30 AM-7 PMOpen Today Service: 7 AM-7 PMOpen Today Parts: 7:30 AM-6:30 PM
Location
Service Guide · Chassis
How Land Rover air suspension works, why a Range Rover sometimes lowers or sits unevenly, which parts wear and in what order, and how to keep the system healthy through North Texas heat.
Book a suspension check → Full maintenance scheduleThe short answer
A Range Rover lowering on its own is often normal. The air suspension deliberately drops to access height for entry and exit, and lowers at highway speed on many models. It becomes a fault when one corner sits low after parking, the compressor runs more than usual, or a suspension warning appears. The most common cause is a slow leak in a rubber air spring, most often at the rear, followed by height sensor faults and, less often, the valve block or compressor. Diagnosing a leak early usually keeps a small repair from turning into a worn-out compressor.
Many suspension “problems” are the system doing its job. This comparison helps tell the difference.
| Usually normal | Worth booking an inspection | |
|---|---|---|
| Lowering when parked | Drops evenly to access height when you switch off or open a door, if access height is enabled | One corner or one end sits noticeably lower than the rest after standing |
| Lowering while driving | Settles lower at sustained highway speed, then rises again as you slow | Drops unexpectedly at low speed, or will not return to normal height |
| Compressor sound | A brief hum after starting or after changing height | Runs often, for long periods, or sounds harsh or grinding |
| Messages | None, or a height-change confirmation | A suspension fault warning, or height adjustment unavailable |
| Ride | Firm over sharp bumps in a sportier setting | Bouncing, crashing over bumps, or leaning on one side |
Height modes and automatic lowering vary by model and settings. Your owner’s handbook describes the exact behavior of your vehicle.
Land Rover’s electronic air suspension replaces steel coil springs with rubber air springs at each corner. A compressor supplies air, a valve block directs it to individual springs, height sensors report each corner’s position, and a control module keeps the vehicle level. It also raises the vehicle for off-road clearance and lowers it for entry and efficiency.
Most common wear item
Air springs
Rubber bladders that carry the vehicle’s weight. Age, heat and flexing eventually crack the rubber. Rear springs carry the load and usually wear first.
Often misdiagnosed
Height sensors
These report each corner’s position. A faulty sensor can trigger a warning or hold one corner at the wrong height while the springs themselves are fine.
Usually a secondary failure
Compressor
This builds the air pressure. Compressors mostly wear out from running overtime to make up for a leak somewhere else in the system.
Distribution
Valve block
This routes air to each spring and holds it there. Internal seal wear can let a corner drop, and it is often mistaken for a spring leak.
Plumbing
Air lines and fittings
Plastic lines run from the valve block to each spring. Cracked lines or loose fittings cause slow leaks that are easy to miss.
Electronics
Control module and software
This coordinates height changes with Terrain Response. Calibration and fault diagnosis are done with a diagnostic tool.
If the lowering is not one of the normal behaviors above, these are the common causes, starting with the most frequent culprits.
| Symptom | Most likely cause | What it means for the repair |
|---|---|---|
| One rear corner low after standing overnight | Leaking rear air spring | Replace the spring. Fixing it early protects the compressor. |
| Whole vehicle slowly settles over a day or two | Leak in a line, fitting or the valve block | A leak test locates the source before any parts are replaced |
| Warning appears but the vehicle sits level | Height sensor or stored intermittent fault | Diagnose with the scan tool first, as it may be a sensor, not a spring |
| Compressor runs constantly or is noisy | Compressor working to cover a leak, or worn compressor | Find and fix the leak, then check the compressor’s output |
| Vehicle will not rise to off-road height | Low system pressure or a compressor protecting itself from overheating | Let it cool. If it recurs, have the pressure and compressor tested. |
The order of diagnosis matters as much as the parts. Replacing a compressor that failed because of a leaking spring, without fixing the spring, sets up the new compressor to fail the same way. A proper diagnosis reads the stored fault codes, checks sensor readings against the actual ride height, and leak-tests the system before recommending parts.
| Model | Suspension |
|---|---|
| Range Rover | Electronic air suspension, standard |
| Range Rover Sport | Electronic air suspension, standard on current models |
| Defender 130 | Electronic air suspension, standard |
| Defender 90 and 110 | Coil springs standard. Air suspension optional, or included on higher trims. |
| Discovery, Range Rover Velar | Depends on model year and specification. Check your vehicle’s build. |
If you are choosing between a coil-sprung and an air-sprung Defender, the Defender body-style differences are covered in our Defender 90 vs 110 vs 130 comparison.
Rubber and plastic components age faster in heat, and North Texas summers are long. None of these steps is complicated. Together they catch small leaks before they become larger bills.
Suspension checks fit naturally into routine visits. Brake work, for example, puts the wheels off and the springs in plain view. See our Land Rover brake service guide, and the Land Rover maintenance schedule and cost guide for how air suspension wear fits into long-term ownership costs.
Air suspension components on a vehicle inside the 4-year / 50,000-mile New Vehicle Limited Warranty are covered against defects. A fault in that period should go to an authorized retailer, where covered repairs are performed at no charge. Outside warranty, the repair is typically a single component, such as one spring, one sensor or one line, rather than the whole system, provided the fault is caught before it damages the compressor.
For the 2026 recall campaigns that do apply to many current Land Rovers, covering the mild-hybrid DC-DC converter and the driver airbag clockspring, see schedule certified Land Rover service in Frisco.
Book a diagnosis and tell us what you have noticed and when. A slow leak caught after a hot summer is usually a one-part repair.
Schedule a suspension diagnosis →Often it is normal. The system lowers to access height for entry and on many models at highway speed. If one corner sits low after parking, or a suspension warning appears, the most common cause is a leaking air spring, usually at the rear, followed by a height sensor fault or a leak in the lines or valve block.
There is no fixed lifespan. Air springs are rubber and wear with age, heat and use, so problems become more common as vehicles get older and accumulate miles. Catching a leak early protects the compressor, which is the costlier part to replace.
It depends on the fault. If the vehicle sits level and drives normally, drive gently and book a diagnosis soon. If it sits very low, leans or bottoms out, avoid driving it and arrange an inspection. Your handbook describes the specific warning messages for your model.
As of September 2026, no 2026 recall covers Land Rover air suspension. NHTSA’s open investigation EA26003 on 2014–2022 Range Rover and Range Rover Sport models concerns the aluminum front steering knuckle, which is a separate part. Check your VIN at NHTSA’s recall lookup.
The Defender 130 has electronic air suspension as standard. The Defender 90 and 110 come with coil springs as standard, with air suspension available as an option or included on higher trims.