Bulkhead Workshop › Land Rover models › Range Rover L405 3.0 Ingenium mild hybrid (D300 / P400) › Workshop guide › Air suspension check

Range Rover L405 3.0 Ingenium mild hybrid (D300 / P400): air suspension check

Suspension · Range Rover L405 (2012–21) · 2020–2021

How often: every 21,000 mi or 2 yrs, whichever comes first. Air springs perish with age; a leak makes the compressor overwork and fail.

Work safely: support the vehicle on axle stands, never a jack alone; let it cool first. Check figures against your workshop manual. You do this work at your own risk.

Parts

Air spring (if leaking)

Tools

Soapy water spray
Diagnostic tool

Step by step

Park overnight on level ground; note any corner that has dropped.
Spray the air springs (folds at the bottom) and pipe joints with soapy water to find leaks.
Read the suspension codes; listen for the compressor running for long periods.

More Range Rover L405 3.0 Ingenium mild hybrid (D300 / P400) servicing

Service: engine oil & filter every 21,000 mi or 2 yrs
Pollen (cabin) filter every 21,000 mi or 2 yrs
Air filter element every 42,000 mi or 4 yrs
Diesel fuel filter every 42,000 mi or 4 yrs
Auxiliary belt & tensioner check every 21,000 mi or 2 yrs
DPF & EGR health check every 21,000 mi or 2 yrs
AdBlue level check every 3 months
Hybrid system & 12 V battery check every 21,000 mi or 2 yrs
Coolant change (10-year) every 10 yrs
Brakes, tyres & suspension inspection every 21,000 mi or 2 yrs
Brake fluid change every 3 yrs
Transfer box & locking-diff oil every 60,000 mi or 5 yrs
Automatic gearbox fluid & differentials every 60,000 mi or 6 yrs
Electric parking brake check every 21,000 mi or 2 yrs
Underbody & corrosion check every year
Annual safety inspection every year
Monthly walk-round checks every month

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