Land Rover   ·   2022–2026

Defender 3 P300 MHEV: Technical specifications

Technical specifications (2022–2026)

The Land Rover Defender (L663) 3 P300 MHEV is the 3-litre petrol variant, engine code AJ20P6H, built from 2022 to 2026. Quick answers and key figures below, then the full workshop tables.

Engine codeAJ20P6H
Power221 kW (300 hp)@ 5500 rpm
FuelPetrol
Cylinders6
Oil capacity8,82litres · with the filter

Engine & identification

Vehicle identification

No. of cylinders Type6/DOHC
Capacity (Fiscal) cc2996
Compression ratio :110,5
Suitable for unleaded petrolYes
Minimum octane rating RON95
Ignition system DescriptionMap-DI
Trigger locationCam/Crankshaft
Fuel system DescriptionMFI-s(d)
Air metering TypeMass/MAP
Combined ignition and fuel ECMYes
Diagnostic socketYes

Ignition system

Ignition coil MakeLand Rover
Ignition coil TypeLR121788
Ignition coil supply voltage + with ballast V12,0

Firing order

The firing order for the Land Rover Defender 3 P300 MHEV (2022–2026) is 1-5-3-6-2-4.

Firing order1-5-3-6-2-4

Valve clearances

Valve clearances on the Land Rover Defender 3 P300 MHEV (2022–2026) are hydraulic — they self-adjust, so no manual clearance figure applies.

Valve clearance - INLET mmHydraulic
Valve clearance - EXHAUST mmHydraulic

Engine oil & fluids

Engine oil

The Land Rover Defender 3 P300 MHEV (2022–2026) takes 8.82 litres of engine oil with the filter. The specified engine oil grade is SAE 0W-20 for all ambient temperatures, with oil specification STJLR.03.5006-16.

Transfer box

See the reference table for the complete transfer box entries and their conditions.

Coolant

Cooling system must be filled using vacuum filling equipment.

See the reference table for the complete coolant entries and their conditions.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range All temperatures
Engine oil grade SAE 0W-20
Engine oil classification OEM STJLR.03.5006-16
Engine with filter(s) litres 8.82
Other lubricants and capacities
Automatic transmission fluid Type Shell L12108 (ZF Lifeguard 8)
Automatic transmission (drain & refill) litres 6.3
View more information
Filling transmission and checking ATF level
Automatic transmission (dry fill) litres 8.3
Automatic transmission - dry fill capacity
Differential oil grade - front SAE Castrol BOT 750B Synthetic
Differential front/AT litres
Selectable 4WD
Differential oil grade - rear SAE Castrol BOT 750B Synthetic
Differential oil grade - rear
Differential rear litres
Electronic differential
Transfer box oil grade SAE Castrol Halbot 311 Synthetic
Transfer box litres 1.25
Coolant Type Havoline XLC
Coolant Colour Orange
Cooling system - total capacity litres 12.4
Cooling system must be filled using vacuum filling equipment.
Brake fluid Type DOT 4
Brake fluid classification ISO Class 6
Brake fluid litres 1.13

Brakes & wear limits

Brake disc thickness

Brake discs on the Land Rover Defender 3 P300 MHEV (2022–2026) are replaced at a minimum thickness of 32 mm (ventilated) front and 23 mm (ventilated) rear.

Minimum disc thickness for replacement - ventilated Front32 mm
Minimum disc thickness for replacement - front
Minimum disc thickness for replacement - ventilated Rear23 mm

Brake disc and drum dimensions

Minimum disc thickness for replacement - front
Minimum pad thickness Front3 mm
Minimum pad thickness Rear3 mm

Bar lengths use a square-root scale so small and large values stay readable.

Service & electrical

Ignition timing

The ignition timing on the Land Rover Defender 3 P300 MHEV (2022–2026) is not adjustable.

Ignition timing - basic BTDC °Engine/rpmNot adjustable

Battery

The Land Rover Defender 3 P300 MHEV (2022–2026) uses a 12 V, 90 Ah battery (reserve capacity 150 minutes).

Battery V/RC(Ah)12/150 (90)

Spark plugs

The Land Rover Defender 3 P300 MHEV (2022–2026) uses NGK SILZKAR8G7Y spark plugs with a 0,7 mm electrode gap.

Spark plugs Original equipmentNGK
Spark plug TypeSILZKAR8G7Y
Electrode gap mm0,7

Tuning and emissions

Ignition advance checks °Engine/rpmECM Controlled
Idle speed rpmNot adjustable

Service checks and adjustments

Radiator cap bar2,0
Thermostat opens °C101

Tightening torques

Cylinder head bolt torque

The cylinder head bolt torque for the Land Rover Defender 3 P300 MHEV (2022–2026) is 20 Nm.

Cylinder head
Renew boltsYes
Tighten20 Nm
Tighten90º
Tighten180º
TightenM8=26 Nm
TightenM6=11 Nm
Cylinder head instructions
Other engine tightening torques
Main bearings Renew bolts/nutsYes
Main bearings Stage 11)25 Nm 2)37 Nm
Main bearings Stage 2135º
Big end bearings Renew bolts/nutsYes
Big end bearings Stage 120 Nm
Big end bearings Stage 2125°
Oil pump to cylinder block25 Nm
Sump bolts
View more information
Lower oil pan
Sump drain bolt30 Nm
Flywheel/driveplate-/30 Nm+120°
Crankshaft pulley/damper bolts37 Nm+90°
Camshaft sprocket/gear25 Nm+60°
Camshaft carrier/cap
View more information
Camshaft carrier/cap
Camshaft/rocker cover11 Nm
Camshaft/rocker cover
Inlet manifold to cylinder head12 Nm
Exhaust manifold to cylinder head
Exhaust manifold to cylinder head
Exhaust downpipe to manifold25 Nm
Water pump12 Nm
Coolant pump - engine
Spark plugs23 Nm
Fuel rail30 Nm
Crankshaft position (CKP) sensor/engine speed (RPM) sensor8 Nm
Camshaft position (CMP) sensor8 Nm
Engine coolant temperature (ECT) sensor11 Nm
Lambda sensor (Oxygen)48 Nm
Knock sensor (KS)20 Nm
Engine oil pressure switch15 Nm
Oil filter25 Nm
Chassis tightening torques
Front hub120 Nm+60°
Front hub - wheel bearing housing bolts
Front hub - wheel bearing housing bolts
Rear hub
Rear hub
Steering wheel48 Nm
Steering rack/box mounting110 Nm+180°
Steering track rod end140 Nm
Brake disc to hub Front10 Nm
Brake disc to hub - front
Brake caliper to carrier Front35 Nm
Brake caliper/carrier to hub Front133 Nm+60°
Brake disc to hub Rear10 Nm
Brake disc to hub - rear
Brake caliper to carrier Rear35 Nm
Brake caliper/carrier to hub Rear110 Nm+120°
Back plate to hub Rear9 Nm
ABS sensor Front9 Nm
ABS sensor Rear9 Nm
Road wheels

Bar lengths use a square-root scale so small and large values stay readable.

Air conditioning

No. of AC service connectors2
Air conditioning restrictor typeExpansion valve
Compressor clutch/magnetic couplingYes
Compressor variable displacement solenoidYes
Air conditioning refrigerant Type
Do not mix R134a with R1234yf.
Air conditioning refrigerant quantity grams650±10
Air conditioning oil groupPAG
Air conditioning oil TypeND-12
Air conditioning oil quantity cm³100
Air conditioning oil quantity
Air conditioning oil viscosity ISO46

Frequently asked questions

What is the firing order of the Land Rover Defender 3 P300 MHEV?

The firing order for the Land Rover Defender 3 P300 MHEV (2022–2026) is 1-5-3-6-2-4.

What spark plugs does the Land Rover Defender 3 P300 MHEV use?

The Land Rover Defender 3 P300 MHEV (2022–2026) uses NGK SILZKAR8G7Y spark plugs with a 0,7 mm electrode gap.

How much oil does the Land Rover Defender 3 P300 MHEV take?

The Land Rover Defender 3 P300 MHEV (2022–2026) takes 8.82 litres of engine oil with the filter. The specified engine oil grade is SAE 0W-20 for all ambient temperatures, with oil specification STJLR.03.5006-16.

What are the valve clearances for the Land Rover Defender 3 P300 MHEV?

Valve clearances on the Land Rover Defender 3 P300 MHEV (2022–2026) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Land Rover Defender 3 P300 MHEV?

The cylinder head bolt torque for the Land Rover Defender 3 P300 MHEV (2022–2026) is 20 Nm.

What is the ignition timing for the Land Rover Defender 3 P300 MHEV?

The ignition timing on the Land Rover Defender 3 P300 MHEV (2022–2026) is not adjustable.