Is the Land Rover Range Rover P510e engine reliable?

The PT306 straight-six Ingenium petrol engine is robust and proven — it has no known catastrophic mechanical failures. However, the P510e is a complex PHEV with a 38.2kWh battery, 105kW electric motor, and AdBlue emissions system. Reliability depends on maintaining the PHEV system as much as the engine itself.

What are the common problems with the Range Rover P510e?

PHEV battery and charging system issues (software glitches, timed charging failures), AdBlue/SCR system faults (crystallisation and sensor failures common on PHEVs), and cooling system complexity (three separate cooling circuits). All are manageable with proper maintenance and early detection.

Is it worth replacing a Range Rover P510e engine, or should I scrap the car?

Against a well-maintained L460 Range Rover (values £60,000–£120,000+), a £6,000–£8,000 reconditioned engine is 5–15% of the vehicle's value — worth it. The Land Rover scrap threshold of 60% means replacement is almost always financially viable on a P510e, given the L460's strong residual values.

How do I find my Range Rover P510e engine code?

The engine code PT306 (AJ20P6) is listed on the VIN plate and vehicle documentation. The P510e badge was offered from the L460's launch in 2022 until the 2024 model year update (replaced by P550e). If your L460 is a 2022–2023 PHEV with the highest-output powertrain, it is the P510e. Tell us your registration and we'll confirm for free.

Can I repair the PHEV battery, or does it require replacement?

PHEV battery issues are often software-related and repairable without replacing the battery. Battery management system (BMS) recalibration and software updates cost £500–£2,000. However, if the battery cells have degraded significantly (range drop of 30%+), cell replacement or full battery replacement may be required — £5,000–£10,000+. Regular use and avoiding deep discharges are the best prevention.

Land Rover Range Rover P510e2022–2023PT306 3.0 PHEV

Land Rover Range Rover P510e Engine Replacement — Compare Prices & Get Quotes

Name: Land Rover Range Rover P510e UK Engine Enquiry Data 2025
Creator: LandRoverEngine.uk

Get quotes today from trusted UK Range Rover P510e specialists. Compare reconditioned, rebuilt and used PT306 3.0 PHEV engines — supply & fit available nationwide for this flagship plug-in hybrid SUV.

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Range Rover P510e Engines — from £3,500 to £8,500Engine code: PT306 (<a href='https://landroverengine.uk/engine/aj20p6'>AJ20P6</a>) (2022–2023)

Range Rover P510e Engines — from £3,500 to £8,500· Engine code: PT306 (<a href='https://landroverengine.uk/engine/aj20p6'>AJ20P6</a>) (2022–2023)

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The RANGE ROVER P510e THROUGH TIME — Era Map

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

Era Note

Flagship PHEV — 510PS, 700Nm, 70-mile EV range; Ingenium straight-six proven robust, but PHEV system adds 38.2kWh battery/charging complexity

GenerationYearsEngine CodeReliabilityRecon CostEra Note

Range Rover L460 BMW 320d Range Rover L460

2022–2023PT306 (AJ20P6) — 3.0 I6 turbo + 105kW e-motor★★★★☆ [NEWLY ASSIGNED — see Data Note]£5,500–£8,500 [PLACEHOLDER — confirm vs cost sheet]Flagship PHEV — 510PS, 700Nm, 70-mile EV range; Ingenium straight-six proven robust, but PHEV system adds 38.2kWh battery/charging complexity

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 P510e Engine Replacement Costs

Supply Only£5,500–£8,500

Fitted (Indie)£6,800–£10,000

Warranty12–24 months

Best ForMost owners — best cost/warranty balance

Engine TypeSupply OnlyFitted (Indie)WarrantyBest For

Used Engine£3,500–£5,500£4,500–£6,8001–6 monthsBudget priority; lower-mileage donor required

Reconditioned Engine£5,500–£8,500£6,800–£10,00012–24 monthsMost owners — best cost/warranty balance

Rebuilt Engine£7,000–£10,000£8,500–£11,50012–24 monthsLong-term ownership; full factory-spec refresh

Main Dealer New£9,000–£13,000£10,500–£15,00024–36 monthsInsurance jobs, warranty claims

Figures above reflect the current Range Rover L460 P510e PT306 PHEV era. This badge was offered 2022–2023, so no older-generation variance applies.

Labour estimate: Fitting a P510e engine typically takes 14–18 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer). The PHEV system's high-voltage components require specialist handling. [PLACEHOLDER — confirm vs cost sheet]

→ Compare Range Rover P510e engine prices from UK specialists

Common Problems

1. PHEV Battery & Charging System Issues

Symptoms: Reduced electric range, failure to charge overnight, timed charging not working, battery warning light, charging port errors, reduced power in hybrid mode.

Typical mileage: Any mileage — often software-related

Repair cost: £500–£2,000 (software updates, BMS recalibration, or component replacement) [PLACEHOLDER]

Replacement cost: £5,000–£10,000+ (38.2kWh battery replacement — rare but expensive) [PLACEHOLDER]

🟠 Check - book inspection urgently if charging fails or range drops significantly

Our recommendation:

The P510e's 38.2kWh lithium-ion battery is the heart of the PHEV system. While generally reliable, some owners have reported timed charging failures and software glitches. The battery management system (BMS) requires regular software updates. If the vehicle fails to charge or the electric range drops dramatically, get the high-voltage system diagnosed immediately. Battery replacement is rare but extremely expensive — maintaining the battery through regular use and avoiding deep discharges is essential.

1. PHEV Battery & Charging System Issues

Symptoms: Reduced electric range, failure to charge overnight, timed charging not working, battery warning light, charging port errors, reduced power in hybrid mode.

Typical mileage: Any mileage — often software-related

Repair cost: £500–£2,000 (software updates, BMS recalibration, or component replacement) [PLACEHOLDER]

Replacement cost: £5,000–£10,000+ (38.2kWh battery replacement — rare but expensive) [PLACEHOLDER]

🟠 Check - book inspection urgently if charging fails or range drops significantly

Our recommendation:

2. AdBlue / SCR System Failures (PHEV-Specific Complexity)

Symptoms: Emissions warning light, AdBlue countdown timer, reduced power, MOT failure, "Emissions System Malfunction" warning.

Typical mileage: 20,000–50,000 miles

Repair cost: £400–£1,500 (sensor replacement, AdBlue injector cleaning, or crystallisation removal) [PLACEHOLDER]

Replacement cost: N/A — repair only

🟠 Check - book inspection urgently if AdBlue countdown appears

Our recommendation:

The P510e's emissions system includes an AdBlue (SCR) system to meet Euro 6d standards. In PHEV operation, the engine runs less frequently, which can lead to AdBlue crystallisation in the injector or exhaust system. This is a known issue across modern JLR diesels and petrol PHEVs. If the countdown timer starts or you get emissions warnings, do not ignore it — once the timer reaches zero, the engine will not restart. Regular use of the combustion engine and AdBlue system maintenance are the best prevention.

3. Cooling System Complexity (Engine + Battery + Electric Motor)

Symptoms: Coolant loss, temperature warnings, reduced power in hot weather, occasional overheating.

Typical mileage: 30,000–70,000 miles

Repair cost: £300–£1,200 (hose replacement, coolant pump, or radiator repair) [PLACEHOLDER]

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

🟡 Monitor - book inspection soon; monitor coolant levels regularly

Our recommendation:

The P510e has three separate cooling systems: one for the combustion engine, one for the electric motor/inverter, and one for the high-voltage battery. This complexity means more potential failure points — coolant hoses, pumps, and radiators all need monitoring. Some early L460 P510es have had cooling system component replacements under warranty. If you notice coolant loss or temperature warnings, have the system pressure-tested immediately.

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Range Rover P510e — 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 P510e — 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 SensePHEV battery / charging software issues✅ Yes£500–£2,000Software updates and BMS recalibration are straightforwardAdBlue/SCR system failure✅ Yes£400–£1,500Sensors and injectors are replaceableCooling system leak✅ Yes£300–£1,200Hose/component replacement is manageable38.2kWh battery failure⚠️ Rare£5,000–£10,000+Extremely rare; assess against vehicle value if it occursMajor engine mechanical failure (AJ20P6)❌ Very rareEngine replacementThe straight-six Ingenium is robust; no known catastrophic failure pattern

Buying This Range Rover P510e? Check These First

Buy If

Full service history with PHEV system checks recorded
Battery health report available (shows capacity and cell balance)
AdBlue system recently serviced with no warnings
Cooling system inspected and no coolant loss history
Vehicle has been regularly used (not left standing — batteries degrade when unused)

Avoid If

Charging issues reported with no diagnosis — could be expensive battery or BMS fault
AdBlue countdown active with no proof of repair — costly emissions system work ahead
Battery range significantly below expectations — indicates degradation or BMS issues
Any high-voltage warning lights — specialist diagnostic equipment required

Closing Verdict

The Range Rover P510e is a technological tour de force — a 510PS plug-in hybrid that delivers supercar performance with 70 miles of electric-only range. The straight-six Ingenium petrol engine is robust and proven. The complexity lies in the PHEV system: battery, charging, and emissions hardware. Buy on full service history, ensure the battery is healthy, and maintain the AdBlue system. This is a £100,000+ luxury SUV — the running costs reflect that.

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

→ Compare Range Rover P510e engine prices before you buy

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Buying Checklist

Before you buy a used Land Rover Range Rover P510e (or before you commit to an engine replacement), check these:

Battery Health — Request a battery health report; range should be close to the 70-mile WLTP claim

Charging Test — Does it charge correctly on both AC and DC chargers? Any timed charging issues?

AdBlue System — Any warnings or countdowns? Check service history for AdBlue work

Coolant Level — Check cold and hot; any loss indicates cooling system issues (engine, battery, or motor)

Service History — Regular services with PHEV system checks are essential

Engine Warning Light — Have codes been read? Emissions, battery, or cooling codes are most common

Electric Range — Does the displayed range match expected? Significant drops indicate battery degradation

MOT History — Check for emissions failures (AdBlue/SCR-related failures are common on PHEVs)

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 exactly match Section 1B's Era Map — the same engine code, years, and generation coverage.

PT306 (AJ20P6)

Years2022–2023

Power510 PS (375 kW) system · 700 Nm · 400 PS (294 kW) engine-only

2025 Enquiries— (pattern data; new-generation PHEV) [PATTERN DATA]

Avg. Recon Cost£5,500–£8,500 [PLACEHOLDER — confirm vs cost sheet]

Engine CodeYearsPower2025 EnquiriesAvg. Recon Cost

PT306 (AJ20P6)2022–2023510 PS (375 kW) system · 700 Nm · 400 PS (294 kW) engine-only— (pattern data; new-generation PHEV) [PATTERN DATA]£5,500–£8,500 [PLACEHOLDER — confirm vs cost sheet]

Technical Specs

PT306 / AJ20P6 PHEV

Displacement2,996cc

Cylinders6-cylinder inline

Compression Ratio10.5:1

Fuel SystemDirect injection

TurbochargerSingle turbocharger

Electric Motor105kW (143PS) integrated with transmission

Battery38.2kWh lithium-ion (31.8kWh usable)

→ Compare Range Rover P510e engine prices for your Land Rover

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Market Intelligence

Most Common Failure

PHEV charging/software issues and AdBlue system faults — approximately 45% of P510e-related enquiries cite charging or emissions concerns

[PATTERN DATA]

Average Enquiry Mileage

20,000

–40,000 miles

[PATTERN DATA]

Average Replacement Cost

£7,000

reconditioned, supply only

[PLACEHOLDER]

Most Requested Engine Code

PT306 (AJ20P6) — P510e and P550e share this engine family

[PATTERN DATA]

Peak Enquiry Season

Winter — battery range drops in cold weather, exposing battery health issues

[PATTERN DATA]

Regional Demand

South East23%

London20%

South West15%

PATTERN DATA

Regional Demand Breakdown

23%South East

20%London

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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