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

Timing chain tensioner and guide wear (pre-2013), cooling system plastic component failures, supercharger coupler wear, and oil consumption. The timing chain is the single most critical issue — address it preventatively or risk a full engine replacement.

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

Range Rover values remain strong — a well-kept L405 is often worth £20,000–£50,000+. A £6,000–£9,000 reconditioned engine is only 15–30% of the vehicle's value — well within the Land Rover 60% scrap threshold. Replacement is almost always worthwhile on a cherished example.

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

The engine code is AJ133 — it's the only 5.0-litre supercharged V8 used in the Range Rover. You can find it on the VIN plate, in the vehicle documentation, or on a label on the engine itself. Production years: L322 (2009-2012) and L405 (2013-2021).

Can I repair the AJ133 timing chain tensioner, or does it need replacement?

It needs replacement — the tensioner pins wear through the aluminium guides. A full timing chain, tensioner, guide and VVT sprocket replacement costs £2,500–£4,500. It's a labour-intensive job but far cheaper than a full engine replacement (£5,500+). The revised 2013+ components are the correct fix. At the first sign of cold-start rattle, book an inspection immediately.

Land Rover Range Rover 5.0 Supercharged2009–20215.0 V8 Supercharged

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

The Range Rover 5.0 Supercharged is a masterpiece of power — 510 bhp and 625 Nm from Jaguar Land Rover's AJ133 V8. But it's plagued by three fatal flaws that UK owners know all too well. Get quotes from UK specialists for reconditioned, rebuilt and used units today.

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Range Rover 5.0 Supercharged Engines — from £4,000 to £14,000Code: AJ133

Range Rover 5.0 Supercharged Engines — from £4,000 to £14,000· Code: 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.

GenerationYearsEngine CodeReliabilityRecon CostEra Note

Why use this era map?

Every cost guide, reliability rating and engine code on this page is aligned to the data above. This keeps everything consistent and trustworthy.

Real UK Cost Data

Verified Reliability

Expert Insights

Updated for 2025

Land Rover Range Rover 5.0 Supercharged Engine Replacement Costs

Supply Only£5,500–£9,000

Fitted (Indie)£7,500–£11,000

Warranty12–24 months

Best ForMost owners — best cost/warranty balance

Engine TypeSupply OnlyFitted (Indie)WarrantyBest For

Used Engine£4,000–£7,000£6,000–£9,0001–6 monthsBudget priority; lower‑mileage examples

Reconditioned Engine£5,500–£9,000£7,500–£11,00012–24 monthsMost owners — best cost/warranty balance

Rebuilt Engine£8,000–£14,000£10,000–£16,00012–24 monthsLong‑term ownership; 3+ year horizon

Main Dealer New£12,000–£18,000+£14,000–£21,000+24–36 monthsInsurance jobs, warranty claims

Figures above reflect the current Range Rover 5.0 Supercharged market. This badge spans two generations — see the Era Map above for generation‑specific pricing. Post-2013 engines typically command a premium.

Labour estimate: Fitting a Range Rover 5.0 Supercharged engine typically takes 16–22 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer).

→ Compare 5.0 Supercharged engine prices from UK specialists

Common Problems

1. Timing Chain Tensioner and Guide Wear (Pre-2013)

Symptoms: Rattling noise on cold start lasting 1–5 seconds, metallic ticking from the front of the engine, engine warning light, misfire codes, eventual cam timing errors

Typical mileage: 60,000–100,000 miles

Repair cost: £2,500–£4,500 (timing chain, tensioner, guide and VVT sprocket replacement)

Replacement cost: £5,500–£9,000 (if chain jumps and causes valve interference)

🔴 Immediate - any cold-start rattle on a pre-2013 AJ133 requires immediate investigation

Our recommendation:

This is the single biggest risk on the 5.0 Supercharged. The original timing chain tensioner has a stainless steel pin that wears a hole through the aluminium chain guide. Once the guide is holed, the chain loses tension and can jump timing. The failure is so well-documented that there was a class action lawsuit. The fix is to replace the entire timing chain system with the revised 2013+ components. If you're buying a pre-2013 car and there's no proof this work has been done, budget for it immediately — or walk away. Frequent oil changes (every 5,000 miles) are the key to avoiding this issue.

Read the full timing chain failure guide

1. Timing Chain Tensioner and Guide Wear (Pre-2013)

Symptoms: Rattling noise on cold start lasting 1–5 seconds, metallic ticking from the front of the engine, engine warning light, misfire codes, eventual cam timing errors

Typical mileage: 60,000–100,000 miles

Repair cost: £2,500–£4,500 (timing chain, tensioner, guide and VVT sprocket replacement)

Replacement cost: £5,500–£9,000 (if chain jumps and causes valve interference)

🔴 Immediate - any cold-start rattle on a pre-2013 AJ133 requires immediate investigation

Our recommendation:

Read the full timing chain failure guide

2. Cooling System Plastic Component Failures

Symptoms: Gradual coolant loss, dampness around the engine bay, rising temperature gauge, steam from bonnet, engine warning light

Typical mileage: 60,000–120,000 miles

Repair cost: £400–£1,200 (coolant crossover pipes, thermostat housing, water pump)

Replacement cost: N/A — repair only (unless overheating causes engine damage)

🟠 Check - book inspection urgently

Our recommendation:

The AJ133's cooling system is full of plastic components that become brittle with age and heat cycles. The plastic thermostat housing and crossover pipes are known failure points. A cracked plastic pipe can dump coolant quickly, leading to rapid overheating and potential head gasket failure. Upgraded aluminium parts are available from specialist suppliers. If you own a 5.0 Supercharged, inspect the cooling system regularly and consider replacing plastic components preventatively at around 80,000 miles.

Read the full coolant leak guide

3. Supercharger Coupler and Snout Bearing Wear

Symptoms: Rattling or grinding noise from the supercharger at idle, metallic tick that changes with engine speed, reduced power delivery

Typical mileage: 80,000–150,000 miles

Repair cost: £400–£900 (supercharger coupler replacement)

Replacement cost: £2,500–£5,000 (if supercharger requires full rebuild)

🟡 Monitor - book inspection soon

Our recommendation:

The supercharger coupler is a known wear item on higher‑mileage AJ133 engines. It can cause a rattling noise that owners often mistake for timing chain rattle. Replacement is a specialist job but well-understood by JLR performance specialists. Catch it early and it's a relatively inexpensive fix. Ignore it and the supercharger bearings can fail, requiring a full supercharger rebuild or replacement.

Read the full supercharger failure guide

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Range Rover 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 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/guide (pre-2013)✅ Yes£2,500–£4,500The single most important upgrade — fit revised 2013+ componentsTiming chain failure (engine damage)❌ Usually NoEngine replacementIf chain jumps and valves hit pistons, replacement is the only optionPlastic coolant pipe failure✅ Yes£400–£1,200Straightforward replacement — fit upgraded aluminium partsSupercharger coupler wear✅ Yes£400–£900Simple replacement — well-understood by JLR specialistsHead gasket failure (overheating)⚠️ Sometimes£2,000–£4,000Viable on a low‑mileage example; borderline on high‑mileage

Buying This Range Rover 5.0 Supercharged? Check These First

Buy If

Post‑2013 build date — revised timing components make this a significantly safer buy
Pre‑2013 with documented timing chain upgrade using 2013+ revised parts — this is the single most important check
Full service history with frequent oil changes (every 5,000–8,000 miles recommended)
Evidence of cooling system maintenance — water pump, thermostat, or crossover pipes replaced

Avoid If

Pre‑2013 with no proof of timing chain work — you're buying a ticking time bomb
Any cold‑start rattle — this is almost certainly timing chain tensioner wear
Evidence of repeated coolant top‑ups without a diagnosed leak — plastic cooling system components are failing
Poor service history — the AJ133 is unforgiving of neglected oil changes

Closing Verdict

The 5.0 Supercharged is a genuinely iconic engine — 510 bhp, supercharged V8 character, and the heart of the ultimate Range Rover. But it has known weaknesses. Pre‑2013 cars are high‑risk; the timing chain tensioner design flaw is well‑documented and expensive to fix. Post‑2013 cars are significantly improved but still require diligent maintenance, particularly on the cooling system. Buy on history, maintain religiously, and this engine will reward you with performance that few SUVs can match. Skip the history and it will punish you.

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

→ Compare 5.0 Supercharged engine prices before you buy

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→ Compare 5.0 Supercharged engine prices before you buy

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Buying Checklist

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

1. Cold Start — Listen for rattles lasting more than 1–2 seconds (timing chain tensioner warning) — this is the single most critical check on the AJ133

2. Service History — including which generation (L322 or L405) and evidence of timing chain work on pre‑2013 cars

3. Coolant Level — Any signs of leaks around the plastic crossover pipes or thermostat housing?

4. Supercharger Noise — Any rattling or grinding at idle? (coupler wear warning)

5. Oil Consumption — Many AJ133 engines burn 1L of oil per 1,000 miles — not fatal, but if ignored, low oil leads to spun bearings

6. Engine Warning Light — Have codes been read? Any unresolved issues?

7. Misfire History — Persistent misfires on cold start can indicate HPFP or injector issues

8. MOT History — Check for emissions‑related failures (catalyst, O2 sensor issues)

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 — one engine code across two generations, with revised internal components from 2013.

AJ133 (508PS)

Years2009–2012

Power510 bhp

2025 Enquiries560 [EM-VERIFIED]

Avg. Recon Cost£5,500–£9,000 [EM-QUOTE]

Engine CodeYearsPower2025 EnquiriesAvg. Recon Cost

AJ133 (508PS)2009–2012510 bhp560 [EM-VERIFIED]£5,500–£9,000 [EM-QUOTE]

AJ133 (508PS)2013–2021510–575 bhp560 [EM-VERIFIED]£5,500–£9,000 [EM-QUOTE]

Technical Specs

AJ133

Displacement5,000cc (5.0‑litre)

CylindersV8 (90° configuration)

Compression Ratio9.5:1

Fuel SystemDirect injection (spark‑ignited)

SuperchargerEaton TVS R1900 (twin‑vortex series)

→ Compare 5.0 Supercharged engine prices for your Range Rover

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Market Intelligence

Most Common Failure

Timing chain tensioner and guide wear — the defining risk of the pre‑2013 AJ133

Average Enquiry Mileage

70,000

–110,000 miles

Average Replacement Cost

£5,500

–£9,000 reconditioned, supply only

Most Requested Engine Code

AJ133 — the supercharged V8 icon

Peak Enquiry Season

Autumn — pre‑winter vehicle preparation【PATTERN DATA】

Regional Demand

South East22%

South West16%

Midlands (14%)【PATTERN DATA】

Regional Demand Breakdown

22%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.

Trusted 5.0 Supercharged Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real Range Rover 5.0 Supercharged owners, as part of the Engine Finders network, across both the L322 and L405 generations.
Compare 5.0 Supercharged Engine Replacement Companies
see prices, warranty terms and supply & fit options side‑by‑side before you commit, with specialists who genuinely understand the AJ133's timing chain tensioner, cooling system, and supercharger coupler weaknesses.
UK Engine Replacement Services for Range Rover 5.0 Supercharged
supply‑only or full supply & fit available nationwide, covering every generation of this iconic V8 with a 12‑month warranty as standard.

Find the best Land Rover Range Rover 5.0 Supercharged engine replacement UK owners trust. Compare prices from trusted specialists on EnginesMarket today and keep your Range Rover performing at its best.

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