Land Rover Range Rover P400e
The 3.0L I6 turbocharged petrol combined with an electric motor as a plug-in hybrid. Combustion engine weaknesses same as the PT306, plus PHEV-specific issues: EV mode refusal, battery degradation, and oil dilution when running predominantly on electric power.
Range Rover P400e: electrified flagship
The first PHEV Range Rover combines stately driving refinement with electric drive. Remarkably quiet in EV mode for such a large vehicle. The I6 petrol adds seamlessly on cross-country runs. A notable combination in automotive history.
Engine Weaknesses 5
Incorrect plastic specification for the I6 3.0L PHEV oil filter housing. The housing can crack and spray oil onto hot components. Recall N908.
Symptoms: Oil leak, oil puddles, oil warning light, smoke or fire
Same base engine as PT306: turbocharger wear from insufficient lubrication. In PHEV mode the combustion engine often starts cold, which damages the turbo without pre-lubrication.
Symptoms: Whistling noise under acceleration, power loss in hybrid mode, smoke
Frequent malfunction: the system refuses EV operation with the message "EV temporarily unavailable". Cause is often a faulty HV coolant heater or defective battery control modules.
Symptoms: EV temporarily unavailable message, system switches to hybrid mode unintentionally
The PHEV battery loses capacity over time. Electric range drops from roughly 50 km to 30–35 km. Charge port and on-board charger failures are also reported.
Symptoms: Reduced electric range, charging errors, charge port unresponsive
When the PHEV is driven predominantly on electricity, the combustion engine starts rarely and never reaches operating temperature. Fuel enters the sump unburnt.
Symptoms: Fuel smell in engine oil, oil level above max mark, early service warning
Vehicle Weaknesses 7
Air springs tear and the compressor overloads. Typical case: vehicle drops after parking, compressor and both air springs plus valve block replaced (approx. 2,200 euros). Occurs regularly despite the aluminium body.
Panoramic roof drain hoses corrode at the plastic connector fitting and break off. Water runs through the body to the audio amplifier under the driver's seat. Several vehicles written off. Annual cleaning of the drains strongly recommended.
Water ingress through failed sunroof drains or leaking windows damages control units under the front seats. Multiple ECUs affected simultaneously. Audio amplifier under the driver's seat particularly vulnerable. Total losses documented by insurance in confirmed cases.
Tailgate seal and gaskets around the rear lights leak — water collects in the spare wheel well. Water runs out when opening the tailgate after rain. Seals and light strip sealing must be replaced.
Rear brake calipers seize due to corrosion of the guide pins in the aluminium housing. Vehicle pulls to one side under braking. Regular replacement necessary. Disc life reduced to approximately 50,000 km by the binding effect.
ZF 8HP gearbox suffers harsh shifts, delayed engagement and torque converter issues when oil changes are skipped. Gearbox oil change recommended every 60,000 km. Sensor fails to detect park position. Diesel variants particularly affected.
InControl Touch Pro navigation uses TMC-based traffic data and suggests partly nonsensical routes. System freezes and restarts. Bluetooth issues and display pixel failures known. Updates improve things but do not resolve them permanently.
Reports & Tests
110 owner complaints filed with NHTSA (2012–2021). Most reported: Engine (18), Electrical (16), Fuel System (14).