Air suspension faults
Compressors, valve blocks, reservoirs, height sensors and front and rear air struts all appear in specialist repair lists for the L405, usually with a suspension warning and a vehicle that will not raise.
Range Rover · L405 · 2013–2022
Electronic air suspension (EAS) parts for Discovery, Range Rover and Range Rover Sport: compressors, air springs, valve blocks and height sensors.
Air suspension is part of the Range Rover (L405) layout. Drivetrain and suspension: Permanent four-wheel drive with Terrain Response (including an automatic mode) and all-round air suspension on an aluminium monocoque. Compressors, air springs or struts, valve blocks and height sensors all wear, and a single suspension warning can point to any of them.
Compressors, valve blocks, reservoirs, height sensors and front and rear air struts all appear in specialist repair lists for the L405, usually with a suspension warning and a vehicle that will not raise.
L405 parts requests are led by air suspension (air struts, compressors, height sensors, valve blocks), diesel turbochargers, NOx sensors and AdBlue parts, DPFs and V6 diesel intake manifolds.
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.
Share the VIN and engine number and the SparesBoyz parts team will check fitment before quoting.