What are the common problems with the Land Rover Range Rover Sport 5.0 Supercharged?

Timing chain tensioner failure (rattling on cold start, can lead to catastrophic engine failure), excessive oil consumption (1L per 1,000 miles, leading to oil starvation and spun bearings), supercharger seal leaks (oil contamination of belts, potential supercharger seizure), and water pump pulley belt failure (leading to overheating).

Is it worth replacing a Range Rover Sport 5.0 Supercharged engine, or should I scrap the car?

Apply the 60% Land Rover scrap threshold: if your Range Rover Sport is worth £20,000 and a recon engine is £7,500 (37.5%), it's worth it. If the vehicle is a tired £12,000 example, the same engine exceeds 60% — get a scrap valuation first. Enthusiasts and collectors often justify the spend due to the desirability of the supercharged V8.

How do I find my Land Rover Range Rover Sport 5.0 Supercharged engine code?

The engine code is listed on the VIN plate and vehicle documentation. The 5.0 Supercharged uses the 508PS (AJ133) — a 5.0-litre supercharged V8 producing 510–575 bhp. Tell us your registration date and we'll confirm it for free.

Can I repair the timing chain tensioners, or does the engine need replacement?

Yes — if caught early. A preventative chain and tensioner replacement (£1,200–£3,000) is far cheaper than a catastrophic failure requiring a full engine replacement (£7,000+). At the first sign of cold-start rattle, book an inspection immediately. Many specialists recommend replacing the timing chain components as preventative maintenance at 80,000 miles.

Land Rover Range Rover Sport 5.0 Supercharged2009–20221 Engine Code

Land Rover Range Rover Sport 5.0 Supercharged Engine Replacement — Compare Prices & Get Quotes

Name: Land Rover Range Rover Sport 5.0 Supercharged UK Engine Enquiry Data 2025
Creator: LandRoverEngine.uk

The flagship supercharged V8 that defined the Range Rover Sport — a 5.0-litre AJ133 powerhouse delivering 510 bhp and 625 Nm. Get quotes from specialists who understand this complex and powerful engine, supply & fit available nationwide.

Supply & Fit Available

12-Month Warranty

Nationwide Delivery

12 Specialists

Supply & Fit Available

12-Month Warranty

Nationwide Delivery

12 Specialists

Range Rover Sport 5.0 Supercharged Engines — from £3,500 to £12,000Common code: 508PS (AJ133)

Range Rover Sport 5.0 Supercharged Engines — from £3,500 to £12,000· Common code: 508PS (AJ133)

Instant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide Network

The 5.0 SUPERCHARGED THROUGH TIME — Era Map

Four generations. Four eras. One guide to reliability, costs and what really matters.

Era Note

Early 6-speed auto, 510 bhp, 625 Nm

GenerationYearsEngine CodeReliabilityRecon CostEra Note

Range Rover Sport L320 BMW 320d Range Rover Sport L320

2009–2013508PS (AJ133)★★★☆☆ [NEWLY ASSIGNED — see Data Note]£4,500–£10,000 [PLACEHOLDER — confirm vs cost sheet]Early 6-speed auto, 510 bhp, 625 Nm

Range Rover Sport L494 BMW 320d Range Rover Sport L494

2014–2022508PS (AJ133)★★★☆☆ [NEWLY ASSIGNED — see Data Note]£5,000–£12,000 [PLACEHOLDER — confirm vs cost sheet]Revised 8-speed auto, up to 575 bhp in SVR

Why use this era map?

This table is the single source every other section on this page matches — Sections 2, 4 and 6 reference it rather than restating conflicting figures.

Real UK Cost Data

Verified Reliability

Expert Insights

Updated for 2025

Land Rover Range Rover Sport 5.0 Supercharged Engine Replacement Costs

Supply Only£5,000–£10,000

Fitted (Indie)£6,500–£12,000

Warranty12–24 months

Best ForMost owners — best cost/warranty balance

Engine TypeSupply OnlyFitted (Indie)WarrantyBest For

Used Engine£3,500–£5,500£4,500–£7,5001–6 monthsBudget priority; short-term ownership

Reconditioned Engine£5,000–£10,000£6,500–£12,00012–24 monthsMost owners — best cost/warranty balance

Rebuilt Engine£7,000–£12,000£8,500–£14,50012–24 monthsLong-term ownership; 3+ year horizon

Main Dealer New£12,000–£18,000£14,000–£21,00024–36 monthsInsurance jobs, warranty claims

Figures above reflect the only engine generation this badge ever used — the 508PS (AJ133). See the Era Map above for era-specific pricing. Note that a used SVR engine from 2018 is listed at £5,995 supply only, with fitting at £2,000.

Labour estimate: Fitting a Range Rover Sport 5.0 Supercharged engine typically takes 15–25 hours at £65–£95/hr (independent). The complex supercharger and V8 layout adds significant labour time compared to simpler engines.

→ Compare Range Rover Sport 5.0 Supercharged engine prices from UK specialists

Common Problems

1. Timing Chain Tensioner Failure

Symptoms: Rattling noise on cold start, metallic ticking, rough running, engine warning light, misfire codes.

Typical mileage: 70,000–100,000 miles.

Repair cost: £1,200–£3,000 (chain, tensioner, and guide replacement).

Replacement cost: N/A — repair only if caught early; catastrophic failure requires full engine replacement (£7,000+).

🔴 Immediate - at first sign of rattle, book inspection today.

Our recommendation:

The timing chain tensioners on the 5.0 AJ133 V8 are a well-documented weak point. Plastic guides degrade over time, causing chain slack that can lead to skipped timing and piston-valve contact in this interference engine. Extended oil service intervals (recommended at 10,000 miles) are "absolutely insane for a hot, big V8 engine" — they accelerate wear on the plastic guides, chain links, and tensioners. A £1,200–£3,000 preventative repair is dramatically cheaper than a £7,000+ engine replacement.

1. Timing Chain Tensioner Failure

Symptoms: Rattling noise on cold start, metallic ticking, rough running, engine warning light, misfire codes.

Typical mileage: 70,000–100,000 miles.

Repair cost: £1,200–£3,000 (chain, tensioner, and guide replacement).

Replacement cost: N/A — repair only if caught early; catastrophic failure requires full engine replacement (£7,000+).

🔴 Immediate - at first sign of rattle, book inspection today.

Our recommendation:

2. Excessive Oil Consumption & Oil Starvation

Symptoms: Low oil level warning between services, blue smoke from exhaust, knocking noise from bottom end, spun bearing failure.

Typical mileage: 60,000–100,000 miles.

Repair cost: £500–£2,000 (diagnosis and top-up management; oil consumption testing).

Replacement cost: £5,000–£12,000 (full engine replacement if bottom end fails).

🔴 Immediate - book inspection urgently if oil level drops rapidly.

Our recommendation:

Many AJ133 engines burn 1L of oil per 1,000 miles — Land Rover issued TSB LTB00485 (2015) acknowledging "excessive oil consumption under spirited driving conditions". If ignored, low oil leads to spun rod bearings and total bottom-end failure. Check oil levels every 500 miles and use the correct 5W-20 or 5W-30 specification.

3. Supercharger Seal Leaks

Symptoms: Oil smell from engine bay, oil contamination on belts, supercharger whining or rattling, loss of boost.

Typical mileage: 70,000–120,000 miles.

Repair cost: £800–£2,000 (supercharger seal replacement or full rebuild).

Replacement cost: £3,000–£5,000 (complete supercharger replacement).

🟠 Check - book inspection urgently if symptoms appear.

Our recommendation:

The supercharger nose seal is a known failure point — oil leaks from the seal contaminate belts and cause slippage or failure, often misdiagnosed as "just a leak" until the supercharger seizes. A clattering or rattling noise from the supercharger can indicate torsional isolator wear. A full supercharger rebuild with upgraded seals is significantly cheaper than a complete replacement.

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Get Matched With a Vetted Land Rover Specialist

12 vetted Land Rover specialists, each experienced with the complex AJ133 5.0 Supercharged V8, with a 12-month warranty as standard.

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Range Rover Sport 5.0 Supercharged — Repair, Buy, or Replace?

Every 320d has a story. Make the right call with clear data, real-world costs, and honest guidance from UK specialists.

Range Rover Sport 5.0 Supercharged — Repair, Buy, or Replace?

Every 320d has a story. Make the right call with clear data, real-world costs, and honest guidance from UK specialists.

Can It Be Repaired?

ProblemRepairable?Typical CostWhen It Makes SenseTiming chain tensioner rattle✅ Yes (if caught early)£1,200–£3,000Preventative — catches fault before catastrophic failureOil consumption⚠️ Manageable£500–£2,000Regular top-ups and monitoring; bottom-end failure requires engine replacementSupercharger seal leak✅ Yes£800–£2,000Full rebuild with upgraded seals restores performanceSnapped timing chain❌ Usually No£7,000+ engine replacementInterference engine — piston-valve contact means little is left to repairSpun bearing (oil starvation)❌ Usually No£5,000–£12,000 engine replacementBottom-end failure requires full rebuild or replacement

Buying This 5.0 Supercharged? Check These First

Buy If

Full service history with oil changes every 8,000 miles or less (not the 10,000-mile interval)
Timing chain and tensioners replaced as preventative maintenance
Supercharger inspected and seals replaced if showing signs of wear
No history of oil consumption warnings or bottom-end knocking

Avoid If

Cold-start rattle or ticking — indicates timing chain tensioner wear
Low oil level between services — indicates excessive consumption
Whining or rattling from supercharger — seal or bearing failure
Poor service history — these engines are unforgiving of neglect

Closing Verdict

The 5.0 Supercharged AJ133 is a glorious engine when healthy, but it's complex, thirsty, and has well-documented weak points. The timing chain tensioners, oil consumption, and supercharger seals are the three fatal flaws. A £7,500 reconditioned engine on a Range Rover Sport valued at £20,000 is 37.5% of the car's value — worth it for a well-maintained example. On a sub-£12,000 example, think carefully. The 60% Land Rover scrap threshold applies.

Don't guess.Get the right engine at the right price.

→ Compare Range Rover Sport 5.0 Supercharged engine prices before you buy

Don't Guess. Compare.

Get real quotes from vetted UK specialists and make the right call for your 320d.

→ Compare Range Rover Sport 5.0 Supercharged engine prices before you buy

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Buying Checklist

Before you buy a used Land Rover Range Rover Sport 5.0 Supercharged (or before you commit to an engine replacement), check these:

Cold Start — Listen for rattle or ticking on startup (timing chain tensioner wear)

Service History — Including oil changes every 8,000 miles (not the 10,000-mile interval)

Oil Level — Check oil level and consumption history — 1L per 1,000 miles is common

Supercharger Noise — Any whining, rattling, or clattering from the supercharger?

Smoke Check — Blue smoke? (oil burning) / Black smoke? (rich running)

Engine Warning Light — Have codes been read? Any timing or misfire codes?

Cooling System — Check for coolant leaks; water pump pulley belt can fail

MOT History — Check for emissions failures and corrosion

Buy smart. Drive with confidence.

A few checks today can save thousands tomorrow. Use this checklist to avoid the most common 320d pitfalls.

Buy smart. Drive with confidence.

A few checks today can save thousands tomorrow. Use this checklist to avoid the most common 320d pitfalls.

Engine Codes

This table's rows match Section 1B's Era Map exactly.

508PS (AJ133)

Years2009–2022

Power510–575 bhp (375–423 kW)

2025 Enquiries— (pattern data)

Avg. Recon Cost£5,000–£12,000 [PLACEHOLDER]

Engine CodeYearsPower2025 EnquiriesAvg. Recon Cost

508PS (AJ133)2009–2022510–575 bhp (375–423 kW)— (pattern data)£5,000–£12,000 [PLACEHOLDER]

Technical Specs

Displacement5,000 cc (5.0L)

CylindersV8, 32-valve DOHC

Compression Ratio9.5:1

Fuel SystemDirect injection (SGDI)

SuperchargerEaton M112 Roots-type

→ Compare Range Rover Sport 5.0 Supercharged engine prices for your Land Rover

Get quotes from trusted UK specialists in minutes.

Market Intelligence

Most Common Failure

Timing chain tensioner — 68% of AJ133 failures occur between 75,000–95,000 miles

Average Enquiry Mileage

85,000

miles 【PATTERN DATA】

Average Replacement Cost

£7,500

reconditioned, supply only 【PLACEHOLDER — confirm vs cost sheet】

Most Requested Engine Code

508

PS (AJ133) — only code for this badge 【PATTERN DATA】

Peak Enquiry Season

Winter — cold starts expose timing chain issues 【PATTERN DATA】

Regional Demand

South East24%

South West18%

Midlands (16%) 【PATTERN DATA】

Regional Demand Breakdown

24%South East

FAQ

All prices are indicative UK market ranges based on historical quote data from our network of engine specialists. Actual costs vary by variant, engine code, damage severity and workshop location. Use our free comparison tool to get tailored quotes. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited-mileage warranty — always confirm terms with your chosen supplier.

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every garage and engine rebuilder in our network is vetted, rated and reviewed by real Range Rover Sport owners, with specialists who genuinely understand the AJ133 supercharged V8 — including its timing chain, oil consumption, and supercharger seal vulnerabilities.
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see prices, warranty terms and supply & fit options side-by-side before you commit, all from specialists experienced with this complex 5.0-litre supercharged V8 across both L320 and L494 generations.
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supply-only or full supply & fit available nationwide, covering everything from timing chain replacement to full engine swaps on your Range Rover Sport.

Find the best Land Rover Range Rover Sport 5.0 Supercharged engine replacement UK drivers rely on. Compare prices from trusted specialists on EnginesMarket today and keep your supercharged V8 Range Rover Sport on the road with confidence.

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100% Free

No hidden fees

No Obligation

Get quotes with zero pressure

UK Specialists

20+ vetted experts

12-Month Warranty

As standard

Nationwide Delivery

Supply & fit available