Engine & identification
Vehicle identification
| No. of cylinders Type | 8/OHV |
|---|---|
| Capacity (Fiscal) cc | 4554 |
| Compression ratio :1 | 8,37 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 91 |
| Ignition system Make | Bosch |
| Ignition system Type | Motronic M5.2.1 |
| Ignition system Description | Map-DIS |
| Trigger location | Cam/Crankshaft |
| Fuel system Make | Bosch |
| Fuel system Type | Motronic M5.2.1 |
| Fuel system Description | MFI-s |
| Air metering Type | Mass |
| Combined ignition and fuel ECM | Yes |
| Diagnostic socket | Yes |
Ignition system
| Ignition coil Make | Bosch |
|---|---|
| Ignition coil Type | 0 221 503 407 |
| Ignition coil supply voltage + with ballast V | 12,0 |
| Primary resistance Ohm | 0,45-0,55 |
| Secondary resistance Ohm | 12000-14600 |
| Distributor (ECM) Make | Bosch |
Firing order
The firing order for the Land Rover Range Rover 4.6 (1999–2002) is 1-8-4-3-6-5-7-2.
| Firing order | 1-8-4-3-6-5-7-2 |
|---|
Valve clearances
Valve clearances on the Land Rover Range Rover 4.6 (1999–2002) are hydraulic — they self-adjust, so no manual clearance figure applies.
| Valve clearance - INLET mm | Hydraulic |
|---|---|
| Valve clearance - EXHAUST mm | Hydraulic |
Engine oil & fluids
Engine oil
The Land Rover Range Rover 4.6 (1999–2002) takes 5.8 litres of engine oil with the filter.
A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification SH/A2.
A listed engine oil option is SAE 10W-40 for moderate climates, with API/ACEA classification SH/A2.
A listed engine oil option is SAE 15W-40 as an alternative for moderate climates, with API/ACEA classification SH/A2.
A listed engine oil option is SAE 20W-50 for hot climates, with API/ACEA classification SH/A2.
Manual gearbox
The manual gearbox has a listed capacity of 2.2 litres. The specified oil is Texaco MTF 94.
Transfer box
The transfer box has a listed capacity of 2.0 litres. The specified oil is Dexron III.
Coolant
The listed total cooling-system capacity is 11.3 litres.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | Cold climate |
| Engine oil grade SAE | 5W-30 |
| Engine oil classification API/ACEA | SH/A2 |
| Ambient temperature range | Moderate climate |
| Engine oil grade SAE | 10W-40 |
| Engine oil classification API/ACEA | SH/A2 |
| Ambient temperature range | Moderate climate alternative |
| Engine oil grade SAE | 15W-40 |
| Engine oil classification API/ACEA | SH/A2 |
| Ambient temperature range | Hot climate |
| Engine oil grade SAE | 20W-50 |
| Engine oil classification API/ACEA | SH/A2 |
| Engine with filter(s) litres | 5.8 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | Texaco MTF 94 |
| Manual transmission litres | 2.2 |
| Automatic transmission fluid Type | Dexron III |
| Automatic transmission (dry fill) litres | 9.7 |
| Differential oil grade - front SAE | 75W-90 |
| Differential front/AT litres | 1.6 |
| Differential oil grade - rear SAE | 75W-90 |
| Differential rear litres | 1.6 |
| Transfer box oil grade SAE | Dexron III |
| Transfer box litres | 2.0 |
| Cooling system - total capacity litres | 11.3 |
| Brake fluid Type | DOT 4 |
| Power steering fluid Type | Dexron III |
| Power steering fluid litres | 1.7 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Land Rover Range Rover 4.6 (1999–2002) are replaced at a minimum thickness of 22 mm (ventilated) front and 11,7 mm rear.
| Minimum disc thickness for replacement - ventilated Front | 22 mm |
|---|---|
| Minimum disc thickness for replacement Rear | 11,7 mm |
Brake disc and drum dimensions
| Disc runout Front | 0,15 mm |
|---|---|
| Disc runout Rear | 0,15 mm |
| Minimum pad thickness Front | 2 mm |
| Minimum pad thickness Rear | 2 mm |
| Parking brake travel No. of notches | 3 |
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 Range Rover 4.6 (1999–2002) is not adjustable.
| Ignition timing - basic BTDC °Engine/rpm | Not adjustable |
|---|
Battery
The Land Rover Range Rover 4.6 (1999–2002) uses a 12 V, 72 Ah battery.
| Battery V/RC(Ah) | 12 (72) |
|---|
Spark plugs
The Land Rover Range Rover 4.6 (1999–2002) uses NGK PFR6N-11 spark plugs with a 1,1 mm electrode gap.
| Spark plugs Original equipment | Champion |
|---|---|
| Spark plug Type | RC11PYB4 |
| Electrode gap mm | 0,95-1,05 |
| Spark plugs Make | Champion |
| Spark plug Type | RC11PYB4 |
| Electrode gap mm | 0,95-1,05 |
| Spark plugs Make | NGK |
| Spark plug Type | PFR6N-11 |
| Electrode gap mm | 1,1 |
Tuning and emissions
| Ignition advance checks °Engine/rpm | ECM Controlled |
|---|---|
| Idle speed rpm | 660±50 Not adjustable |
| Oil temperature °C | 80 |
| CO level at idle speed - tailpipe Vol. % CO | 0,5 Max Not adjustable |
| HC level at idle speed ppm | 100 |
| CO2 level at idle speed Vol. % CO2 | 14,5-16 |
| O2 level at idle speed Vol. % O2 | 0,1-0,5 |
| Increased idle speed for CO test rpm | 2500-2800 |
| CO content at increased idle speed Vol. % | 0,3 |
| Lambda at increased idle λ | 0,98-1,02 |
Starting and charging
| Maximum cranking amps A | 194-238 |
|---|---|
| Alternator output A/V/rpm | 150/-/- |
Service checks and adjustments
| Oil pressure bar/rpm | 3,45/2000 |
|---|---|
| Radiator cap bar | 1,00 |
| Thermostat opens °C | 80-90 |
Fuel system
| Fuel pump delivery pressure bar | 3,5 |
|---|---|
| Regulated pressure with vacuum bar | 3,5 |
| Injector Ohm | 13,8-15,2 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Land Rover Range Rover 4.6 (1999–2002) are tightened in 3 stages: 20 Nm, then 90°, then a final 90°.
| Cylinder head | |
|---|---|
| Renew bolts | Yes |
| Tighten | 20 Nm |
| Tighten | 90° |
| Tighten | 90° |
| Cylinder head instructions | — | |
|---|---|---|
| Other engine tightening torques | ||
| Main bearings Renew bolts/nuts | No | |
| Main bearings Stage 1 | — | |
| View more information | — | |
| Main bearings | ||
| Big end bearings Renew bolts/nuts | No | |
| Big end bearings Stage 1 | 20 Nm | |
| Big end bearings Stage 2 | 80° | |
| Sump bolts | 23 Nm | |
| Sump drain bolt | 32 Nm | |
| Flywheel/driveplate | 80 Nm/ | |
| Drive plate | ||
| Clutch pressure plate | 40 Nm | |
| Crankshaft pulley/damper centre bolt | 270 Nm | |
| Camshaft sprocket/gear | 50 Nm | |
| Camshaft/rocker cover | 1)3 Nm 2)7 Nm | |
| Inlet manifold to cylinder head | 50 Nm | |
| Exhaust manifold to cylinder head | 55 Nm | |
| Exhaust downpipe to manifold | 30 Nm | |
| Water pump | 22 Nm | |
| Spark plugs | 20 Nm | |
| Fuel rail | 8 Nm | |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 6 Nm | |
| Camshaft position (CMP) sensor | 8 Nm | |
| Engine coolant temperature (ECT) sensor | 20 Nm | |
| Lambda sensor (Oxygen) | 20 Nm | |
| Knock sensor (KS) | 16 Nm | |
| Engine oil pressure switch | 15 Nm | |
| Chassis tightening torques | ||
| Front hub | 260 Nm | |
| Rear hub | 260 Nm | |
| Steering wheel | 33 Nm | |
| Steering rack/box mounting | 125 Nm | |
| Steering track rod end | 50 Nm | |
| Brake disc to hub Front | 25 Nm | |
| Brake caliper to carrier Front | 30 Nm | |
| Brake caliper/carrier to hub Front | 165 Nm | |
| Brake disc to hub Rear | 25 Nm | |
| Brake caliper to carrier Rear | 30 Nm | |
| Brake caliper/carrier to hub Rear | 100 Nm | |
| Road wheels | 130 Nm | |
Bar lengths use a square-root scale so small and large values stay readable.
Air conditioning
| No. of AC service connectors | 2 |
|---|---|
| Air conditioning restrictor type | Expansion valve |
| Compressor clutch/magnetic coupling | Yes |
| Compressor variable displacement solenoid | No |
| Air conditioning refrigerant Type | R134a |
| Air conditioning refrigerant quantity grams | 1380±25 |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | Dens Oil 8 |
| Air conditioning oil quantity cm³ | 180 |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the firing order of the Land Rover Range Rover 4.6?
The firing order for the Land Rover Range Rover 4.6 (1999–2002) is 1-8-4-3-6-5-7-2.
What spark plugs does the Land Rover Range Rover 4.6 use?
The Land Rover Range Rover 4.6 (1999–2002) uses NGK PFR6N-11 spark plugs with a 1,1 mm electrode gap.
How much oil does the Land Rover Range Rover 4.6 take?
The Land Rover Range Rover 4.6 (1999–2002) takes 5.8 litres of engine oil with the filter. A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification SH/A2. A listed engine oil option is SAE 10W-40 for moderate climates, with API/ACEA classification SH/A2. A listed engine oil option is SAE 15W-40 as an alternative for moderate climates, with API/ACEA classification SH/A2. A listed engine oil option is SAE 20W-50 for hot climates, with API/ACEA classification SH/A2.
What are the valve clearances for the Land Rover Range Rover 4.6?
Valve clearances on the Land Rover Range Rover 4.6 (1999–2002) are hydraulic — they self-adjust, so no manual clearance figure applies.
What is the cylinder head torque for the Land Rover Range Rover 4.6?
The cylinder head bolts on the Land Rover Range Rover 4.6 (1999–2002) are tightened in 3 stages: 20 Nm, then 90°, then a final 90°.
What is the ignition timing for the Land Rover Range Rover 4.6?
The ignition timing on the Land Rover Range Rover 4.6 (1999–2002) is not adjustable.