Range Rover L322 maintenance guide

The L322 rewards owners who stay ahead of maintenance and punishes those who defer it. This guide covers the routine jobs worth keeping on top of and a sensible rhythm for doing them — the things that keep a good L322 reliable and stop small issues becoming expensive ones.

The right approach

Think of L322 ownership as staying ahead of a known list rather than waiting for things to break. The faults are well documented (see common problems), which means most are predictable and preventable. A car with a thick folder of routine receipts is worth far more, and costs far less to run, than one that's been left to chance.

A sensible service schedule

Manufacturer intervals are a starting point, but many L322 owners service more often than the book to protect the car. A pragmatic rhythm:

ESTIMATE / GENERAL GUIDANCE

Intervals are general guidance — always check the correct schedule and fluid specifications for your specific engine and model year. See servicing.

Battery & electrics

The single most underrated maintenance item on an L322. A weak battery doesn't just fail to start the car — it destabilises the whole electrical network and triggers a cascade of unrelated fault codes and warning lights. Keeping the battery healthy prevents an astonishing number of "faults".

• Fit a good-quality battery of the correct type and size — these cars are demanding.
• Keep terminals and earth straps clean and tight; corrosion here causes weird electrical gremlins.
• If the car sits for days, consider a smart trickle charger — it prevents the slow drain that flattens batteries and throws codes.
• Watch for parasitic drain (battery flat after a few days standing); track it down rather than just replacing batteries.

Fluids & filters

Clean fluids are the cheapest insurance on the car.

• Engine oil & filter: the most important routine job — use the correct grade and don't stretch the interval, especially on the diesels.
• Gearbox oil & filter: despite the "sealed for life" label, periodic changes are widely considered essential — skipping this is a leading cause of expensive gearbox failure.
• Transfer box oil: often forgotten; worth doing with the gearbox service.
• Brake fluid: hygroscopic, so change it periodically regardless of mileage.
• Cabin (pollen) filter: a cheap, easy job that keeps the climate system breathing — a good first DIY task.

Cooling system

Overheating is one of the quickest ways to turn an L322 into a big bill, so the cooling system earns attention. Keep the coolant fresh and the right type, check for weeping hoses and a healthy radiator, and watch temperatures. On the 3.6 TDV8 in particular, the plastic coolant pipe in the engine valley is a known weak point — many owners replace it with an uprated metal one as preventive work before it fails. See preventive upgrades.

Air suspension care

The air suspension is reliable when looked after and troublesome when neglected. The key maintenance mindset is to fix small leaks early: a slightly weeping air spring makes the compressor work harder, and an overworked compressor eventually fails — turning a cheap fix into a dearer one. Watch for the car sitting unevenly, dropping overnight, or being slow to raise, and address it before it cascades.

Brakes & tyres

Heavy cars are hard on both, so treat them as regular wear items rather than faults.

• Brakes: inspect pads and discs at every service; budget for replacement roughly every 48,000 km, sooner if you tow. Cars with uprated Brembo brakes cost more for parts. See brakes.
• Tyres: use the correct size and a quality tyre; mismatched or wrong-size tyres can upset the air suspension and 4WD systems. Check pressures and wear regularly.

Seasonal checks

• Before winter: test the battery, check coolant antifreeze strength, inspect wipers and lights, and make sure the heating works on both sides.
• Before summer / a long trip: air-con check, coolant and oil levels, tyre condition, and a general look underneath for leaks.
• After heavy rain: check for damp footwells — blocked sunroof and body drains are a classic L322 cause of water ingress and the electrical faults that follow.

DIY vs specialist

Plenty of L322 maintenance is within reach of a confident home mechanic, and doing the simple jobs yourself saves real money and builds familiarity with the car.

A Land-Rover-literate diagnostic tool is the best single purchase for a hands-on owner — it turns mystery warning lights into specific, often cheap, fixes.

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