Range Rover P400e reliability: plug-in hybrid checks
Range Rover P400e reliability in the Range Rover and Sport: hybrid battery, charging faults, Ingenium petrol checks and how used values compare.
· 7 min read
Range Rover P400e reliability is acceptable but not trouble-free. The plug-in hybrid pairs a 2.0 Ingenium four-cylinder petrol engine with an electric motor and a 13.1 kWh battery. Most reported faults involve charging, hybrid-system warnings and 12-volt electrics rather than the engine. For dealers, the key checks are battery capacity, charging hardware, warranty status and open recalls.
What the P400e is and which cars use it
The P400e is Land Rover's first-generation plug-in hybrid, sold in the Range Rover (L405) and Range Rover Sport (L494) from model year 2018 until the new generations arrived in 2022. It combines a 300 PS 2.0 Ingenium turbo petrol engine with a 116 PS electric motor built into the eight-speed automatic gearbox, for a combined 404 PS.
Is the P400e an Ingenium engine? Yes. The petrol unit is the four-cylinder Ingenium also used in other Jaguar Land Rover models, so its known issues apply here too.
Key facts for a dealer:
| Item | P400e (L405/L494) | P440e/P510e (L460/L461, 2022–) |
|---|---|---|
| Engine | 2.0 Ingenium four-cylinder petrol | 3.0 Ingenium six-cylinder petrol |
| Battery | 13.1 kWh | 38.2 kWh (about 31.8 kWh usable) |
| Official electric range | around 30 miles (NEDC) at launch | up to about 70 miles (WLTP) |
| Charging | AC only | AC plus DC rapid charging |
The newer cars are a different product with a much larger battery, so do not price an older P400e off them.
Is the Range Rover P400e reliable?
The P400e is reasonably reliable if it has been charged regularly and serviced on time, but it is more complex than the diesels it was sold alongside. Owner reports point to electronics and charging rather than mechanical failure.
The most common problems reported by owners and specialists are:
- Charging faults – the car refuses to charge, stops mid-session or reports a charging system fault. Causes range from software and the on-board charger to the charging socket and flap.
- "Hybrid system fault" warnings – often software-related and cleared by updates, sometimes linked to battery cooling or high-voltage components.
- 12-volt battery drain – a weak auxiliary battery can trigger a cascade of warnings and stop the car starting.
- Ingenium petrol issues – coolant leaks, sensor faults and timing-chain noise on some engines; a cold-start listen is essential.
- The usual Range Rover items – air suspension, infotainment and electrical faults common to the L405 and L494.
The diesel-specific problems, such as V6 crankshaft failures, do not apply. That is one reason a well-documented P400e can be a lower-risk stock car than a high-mileage SDV6. See our Range Rover Sport reliability guide for the wider picture.
For car dealers
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Request accessBattery life and capacity checks
The P400e battery usually lasts well, but its usable capacity is the one number that tells you how much life is left. Because the pack is small, it goes through many charge cycles if the owner charged daily.
How to check it:
- Charge the car to 100% and note the displayed electric range. Compare it with what similar cars show; a clearly lower figure suggests degradation or a cell fault.
- Read the battery state of health with a diagnostic tool that supports Jaguar Land Rover hybrids, or ask a retailer for a printout.
- Check that the car charges at its normal AC rate and that the charging session completes without errors.
- Ask for charging cables; replacing the original cables adds cost and slows the sale.
What is the battery life of a Range Rover Sport P400e? There is no fixed figure. Land Rover typically covers the high-voltage battery for eight years, with mileage limits and capacity terms that vary by market. For the oldest 2018 cars that cover is running out, so a battery check matters more each year. Our EV battery health check guide explains the testing methods.
Recalls and warranty status
Check open recalls on every P400e by VIN before you buy. Jaguar Land Rover has run recalls on its plug-in hybrids, including one for a high-voltage battery bolt on a small number of 2023 Range Rover PHEVs in the US, and campaigns vary by market and build date.
What to verify:
- Open recalls and service actions at a Land Rover retailer.
- Software level of the battery and hybrid control modules.
- Remaining manufacturer warranty on the car and on the high-voltage battery.
- Service history at the correct intervals, including the Ingenium engine.
An open recall is not a reason to walk away, but it delays retail sale. Our guide to the car recall check covers the process.
Do P400e models hold their value?
P400e models hold their value better than many dealers expect, because they are newer than most diesels on sale and appeal to company-car buyers in some countries. According to listings tracked by MyCarDealer in Germany, the Netherlands, Belgium, Italy and Poland in October 2026:
| Model | Listings | Median asking price |
|---|---|---|
| Range Rover Sport plug-in hybrid, 2018–2022 | 83 | €41,950 |
| Range Rover Sport diesel, 2018–2022 | 293 | €34,900 |
| Range Rover plug-in hybrid, 2018–2021 | 33 | €46,850 |
Two points stand out. First, the plug-in Sport had a higher median than diesel Sports of the same years, partly because the plug-in cars were younger and lower-mileage on average. Second, 63 of the 83 listings classified as plug-in hybrids were in the Netherlands, where the median was €42,500, so Dutch prices dominate the figure.
Why tax rules decide where a P400e sells
Plug-in hybrid demand is driven by company-car tax rules, and those rules have tightened. A P400e's value in a given country depends on whether it still qualifies for any benefit.
Examples:
- Germany: for company cars acquired from 2025, the reduced 0.5% benefit-in-kind rate under § 6 (1) No. 4 EStG requires at least 80 km of electric range or no more than 50 g/km CO2. A first-generation P400e meets neither, so German company buyers pay the standard rate.
- Belgium: the deductibility of company plug-in hybrids is being phased down. Under the 2025 reform, hybrids acquired until the end of 2027 keep a minimum 75% deduction, falling in later years; the rules differ between self-employed people and companies, so check current guidance.
- Emissions testing: under Euro 6e-bis, plug-in hybrids are tested with a revised utility factor that raises their official CO2 figures, which reduces tax advantages for newer cars too.
The result is that private buyers who can charge at home are often the best audience for an older P400e. Our article on plug-in hybrid remarketing looks at channels in more detail.
How to buy and price a P400e for stock
Buy a P400e on its battery and history, not on its specification. Two cars with the same trim can be worlds apart.
- Confirm battery capacity and charging function first.
- Run a full diagnostic scan for stored hybrid, charging and 12-volt faults.
- Check air suspension and infotainment as on any Range Rover.
- Price from current listings of plug-in cars in your market, not diesel equivalents.
- Deduct a reserve for a charging repair on cars out of warranty.
A free valuation gives you the market price in your country and the margin after costs, so you can see quickly whether a P400e at auction leaves enough room.
Frequently asked questions
Is the Range Rover P400e engine any good?
The 2.0 Ingenium petrol is a capable engine, but some units suffer coolant leaks, sensor faults or timing-chain noise. Combined with regular servicing, it is generally less of a concern than the charging and hybrid electronics.
What are the common problems with the Range Rover P400e?
Charging faults, hybrid-system warning messages, 12-volt battery drain and the usual Range Rover air suspension and infotainment issues. Most hybrid faults are electronic and some are resolved by software updates.
How long does the P400e battery last?
Many packs keep most of their capacity for years, but degradation depends on use and charging habits. Check the full-charge range and state of health, and confirm how long the battery warranty has left.
Do P400e models hold their value?
In October 2026 the median asking price of 2018–2022 Range Rover Sport plug-in hybrids in five European markets was higher than that of diesel Sports of the same years. Most of those listings were in the Netherlands, so check prices in your own market.
Is the P400e worth buying for stock?
Yes, when the battery is healthy, charging works and the history is complete. Avoid cars with unexplained hybrid faults or missing cables unless the price leaves room for repair.