Range Rover Sport MOT Failures: Common Issues & Parts Guide (L494, 2013–2022)

The second-generation Range Rover Sport (L494) combined genuine performance with luxury and off-road ability, making it one of the UK's most popular premium SUVs. With the earliest examples now past their tenth birthday and over 314,000 Sport MOT tests per year across both generations, the L494 is firmly into its maintenance years. Based on DVSA anonymised MOT data and specialist workshop reporting, here's what's failing and the parts you need to fix it.

Range Rover Sport L494 MOT Pass Rate

Across all Sport generations, the model scores 86.6% — 8.3 percentage points above the UK average. The L494 sits at the newer end of that range, with pass rates well above the overall figure for younger cars.

The median mileage at MOT across all Sport generations is 51,451 miles. The L494's aluminium monocoque means corrosion is far less of a concern than on the L320, but the complexity of the air suspension, diesel emissions systems, and electronics creates its own set of challenges.

1. Suspension — The #1 Individual Failure

Suspension components top the individual MOT failure list for the Range Rover Sport, and the L494 — despite being a generation newer — shares the same fundamental weakness: worn front suspension joints and bushes.

What Fails

• Suspension pin, bush or joint excessively worn — 6,059 failures across all Sport generations (the #1 individual item)
• Suspension joint dust cover missing or deteriorated — 3,202 failures
• Front lower arm bushes — clonking/knocking at low speed, especially when braking
• Front anti-roll bar D-bushes — woolly steering and clunking when cornering
• Front drop links (tie bars) — metallic rattle over bumps; corroded fixings make removal difficult

What You Need

Tip: Front lower arm wear is the single most common workshop job on the L494. A 4-wheel alignment is essential after replacement — misalignment alone causes rapid tyre wear and can itself trigger an MOT advisory.

2. Air Suspension Faults

Every L494 comes with electronic air suspension as standard, and it's a consistent source of workshop visits as these cars age. While an air suspension fault doesn't always cause a direct MOT failure, a sagging corner, inability to level, or an active warning light will.

Common Symptoms

• One corner sinks overnight or sits low
• "Suspension Fault" warning on the dashboard
• Vehicle won't rise above standard height; off-road mode unavailable
• Compressor running constantly or cutting out
• Bouncy or wallowing ride quality

What Fails

• Air springs (bags) — rubber bellows become porous and leak, rears most commonly
• Compressor — overworks to compensate for leaking bags, eventually burns out
• Valve block — internal seal failure causes air to bleed between corners
• Height sensors — corrode or fail, feeding incorrect data to the ECU
• Complete strut failure (front) — struts are sealed units requiring full replacement
• Reservoir tank — develops cracks or valve faults

What You Need

Tip: Air suspension diagnostics and calibration should always be carried out before replacing individual components. A system re-calibration alone can sometimes resolve height faults caused by sensor drift rather than a failed component.

3. Brakes — Heavy Vehicle, Fast Wear

Brakes account for 65.4% of all recorded failure items across the Range Rover Sport range. The L494 weighs between 2,100 and 2,300 kg, and that mass combined with the performance on offer means brake components wear quickly.

What Fails

• Brake pipe damaged or excessively corroded — 3,611 failures
• Brake lining/pad worn below 1.5mm — 3,497 failures
• Brake disc significantly worn or scored

Average disc life is around 32,000 miles on the L494. The ECU-controlled calipers on later models require specialist diagnostic equipment to retract the pistons when fitting new pads — standard wind-back tools won't work.

What You Need

Tip: Don't ignore the brake wear warning light. Once it's triggered, the discs are already close to minimum thickness and will likely need replacing alongside the pads — doubling the cost.

4. Tyres

Tyre-related items account for three entries in the top 10 individual failures across the Sport range, with a combined 10,121 failures.

What Fails

• Tyre seriously damaged — 4,727 failures
• Tyre cords visible or damaged — 3,000 failures
• Tyre tread depth non-compliant — 2,394 failures

The L494's weight, large wheel options (20"–22"), and the performance-oriented tyre fitments on SVR and HSE Dynamic models mean faster-than-expected wear. The AWD system distributes wear across all four corners, which can mask low tread depth until all four tyres need replacing simultaneously.

What You Need

5. SRS (Airbag) Warning Light

The SRS malfunction indicator recorded 2,099 failures across the Sport range — the 8th most common individual item. An illuminated airbag light is an automatic MOT failure.

On the L494, the most common cause is a small-gauge wire beneath the front seats that chafes and breaks. Land Rover's approved fix is a wire overlay repair rather than replacing the entire airbag unit — a significantly cheaper solution when correctly diagnosed.

What You Need

6. Windscreen Wipers & Visibility

Wiper blade failure is the 9th most common individual item at 2,036 failures.

What Fails

• Wiper blade missing or not clearing windscreen — 2,036 failures
• Windscreen washer system inoperative
• Windscreen damage in swept area

What You Need

7. Lighting

Lighting accounts for 34.9% of failure items as a category. The L494's LED and adaptive headlamp systems are reliable in themselves, but headlamp aim is linked to the air suspension ride height — a sagging corner or failed height sensor will throw the beam pattern out of spec.

What Fails

• Headlamp aim outside limits — linked to air suspension state
• Headlamp or light source inoperative
• Number plate non-conforming — 1,536 failures (10th most common individual item)
• Rear lamp failure

What You Need

Tip: If headlamp aim fails the MOT, check the air suspension first. On the L494, headlamp levelling is automatic and reads from the ride height sensors — a suspension fault will cause a lighting fail.

8. Steering

Worn track rod ends and steering play are consistent MOT failures on higher-mileage L494s, accounting for around 13.9% of failure items.

What You Need

9. Emissions & Exhaust

Diesel L494s — which make up the majority of UK cars — are increasingly failing on emissions-related items as they accumulate mileage and age.

What Fails

• Engine MIL illuminated (mandatory MOT fail since 2018)
• DPF blockage — particularly on short-journey cars
• EGR valve clogging (3.0 diesel)
• Throttle body failure (3.0 diesel) — prevents DPF regeneration
• Lambda sensor degradation
• AdBlue / NOx sensor faults (2016+ diesels)

What You Need

Beyond the MOT: Major L494 Faults

These are the issues that bring L494 owners into workshops — and they all need parts.

Crankshaft Failure (3.0 TDV6 / SDV6 Diesel)

The most serious and expensive L494 fault. The 3.0 V6 diesel — shared across much of the Land Rover/Jaguar range — carries a known crankshaft weakness inherited from the original 2.7 TDV6 design. Reports of catastrophic crankshaft failures are concentrated between 80,000 and 120,000 miles, and they typically result in an engine beyond economical repair. The 2014–2015 model years are considered the highest risk.

Timing Chain Failure (2.0 Ingenium Diesel)

The same Ingenium timing chain issue seen across the Land Rover range. Oil dilution from incomplete DPF regeneration stretches the chain and degrades the plastic guides. A cold-start rattle is the early warning. Left unchecked, the chain jumps or snaps and the engine is destroyed.

Timing Belt (3.0 Diesel)

The 3.0 V6 diesel uses a timing belt with a service interval of every 7 years or 112,000 miles. Given the earliest L494s are now 13 years old, many will be approaching their second belt change. A snapped belt causes pistons to hit valves — catastrophic engine damage.

Turbocharger Failure (Diesel Models)

Loss of power, engine management light, and blue exhaust smoke are the signs. A progressive whining or whistling noise from the engine bay is an early warning. When replacing the turbo, a full engine oil flush and replacement of intercoolers, feed pipes, and filter screens is recommended to prevent contamination killing the new unit.

Throttle Body & Inlet Manifold (3.0 Diesel)

The throttle body clogs and the plastic inlet manifold can crack, both causing "Restricted Performance" mode. The throttle body issue also prevents DPF regeneration, creating a cascade — a clogged throttle body leads to a blocked DPF leads to an MOT failure.

AdBlue & NOx Sensor Faults (2016+ Diesels)

The SCR system is sensitive. Depleted AdBlue prevents the car from starting. A failed NOx sensor (~£610 to replace) triggers the engine management light and fails the MOT. Overfilling the AdBlue tank can also cause sensor damage.

Hub & Wheel Bearing Failure

Both front and rear bearings wear on the L494. A grinding or rumbling noise — worsening when turning (front) or increasing with speed (rear) — is the classic symptom.

Water Pump & Cooling System

The supercharged V6 and V8 petrols share the same cooling system weaknesses as their Jaguar counterparts — water pump bearing corrosion, cracked plastic pipes, and thermostat housing leaks. Overheating risks head gasket failure on the V8s.

Door Latch Failure

A known issue across the Land Rover range — central locking activates but one door still opens, or the vehicle won't lock at all. The latches are sealed units requiring complete replacement. Over 65,000 L494s were recalled for 2014–2016 keyless entry door latch defects.

Differential & Transfer Case Wear

The front and rear differentials develop a drone or whining noise at constant speeds as bearings and gears wear. The transfer case can also develop faults, particularly on high-mileage cars.

Supercharger Service (V6 SC & V8 SC)

The Eaton supercharger on the petrol models needs periodic attention. A rattle or whine from the front of the engine, or reduced performance, indicates wear to the nose cone bearing or snout coupler.

Range Rover Sport L494 MOT Failure Summary — At a Glance

Keeping Your Range Rover Sport L494 on the Road

The L494 is a more modern and sophisticated vehicle than its L320 predecessor, with far less corrosion risk thanks to its aluminium construction. But it carries its own set of challenges — the Ingenium timing chain, the 3.0 diesel crankshaft weakness, and the complexity of the air suspension and emissions systems all demand attention.

The good news is that most MOT failures are wear items — suspension bushes, brake pads, tyres, and wiper blades. Keeping on top of these is the cheapest way to avoid an MOT fail. For the bigger mechanical items, early diagnosis and quality parts make all the difference.

Browse all Range Rover Sport Mk2 (L494) parts at myton.parts

We stock genuine, OEM, and aftermarket parts for every L494 system, with next-day UK delivery available.

Service & Maintenance Parts

Regular servicing is non-negotiable on the L494. Oil quality directly affects timing chain life on the Ingenium diesel, and the 3.0 diesel's timing belt has a hard service interval that must not be exceeded.

Data sourced from DVSA anonymised MOT test results (2024 test year, 314,750 tests across all Sport generations). Specialist fault data from K Motors, Engine Finders, and Land Rover workshop reporting.