Air suspension compressor and air springs
The air springs develop cracks and tears with age, and the leaks overwork the compressor until it fails. The air springs themselves are relatively cheap to replace.
Discovery · L319 · 2005–2009
Electronic air suspension (EAS) parts for Discovery, Range Rover and Range Rover Sport: compressors, air springs, valve blocks and height sensors.
Air suspension is fitted to most, but not all, Discovery 3 vehicles. Drivetrain and suspension: Permanent four-wheel drive with a two-speed transfer case. Most vehicles use all-round air suspension and Terrain Response; the coil-sprung base model used conventional steel springs and did without Terrain Response. Check which system your vehicle has before ordering, because a steel-sprung vehicle needs conventional suspension parts instead.
See Discovery 3 suspension for that side of the system.
The air springs develop cracks and tears with age, and the leaks overwork the compressor until it fails. The air springs themselves are relatively cheap to replace.
On the Discovery 3, air suspension parts lead the list: air springs, compressors, valve blocks and height sensors, plus front and rear suspension arms.
Air leaks are the root of most failures. A leak from an air spring, air line or valve block makes the compressor run much more than it should, until the compressor wears out or overheats. When a compressor fails, find and fix the leak as well, or the new compressor will go the same way.
A corner that sinks while parked usually has a leak in its air spring, air line or the valve block. If the whole vehicle drops evenly, the valve block or a common line is more likely. Spraying soapy water on the springs and fittings with the vehicle raised can reveal where the leak is.
For how these parts work and the signs of wear, read the Land Rover air suspension guide.
Share the VIN and engine number and the SparesBoyz parts team will check fitment before quoting.