INTRODUCTION
Note. All diagnostic information, specifications and test procedures for current models is contained in Land Rovers proprietary TestBook system.
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you are familiar with an adjustment procedure and only need a specification.
CAPACITIES
Note. On Freelander, the Intermediate Reduction Drive (IRD) is used in place of a conventional transfer case. The IRD is attached to the automatic transmission. The IRD includes a differential unit to control the proportion of torque delivered to each front wheel. The differential operates in combination with the viscous coupling giving the vehicle a self-sensing 4-wheel system. The IRD has 4 internal seals to keep IRD fluids from mixing with gearbox lubricating fluids.
Note. On Discovery, the power steering system and Active Cornering Enhancement (ACE) share one fluid reservoir. The fluid reservoir has separate and independent reservoir areas for power steering system and ACE. Each system has its own filling cap. Fluid specification for both systems is Texaco Cold Climate Power Assisted Steering (PAS) fluid 14315 (GM Part No. 12345866 or 12345867). Fluid may be Amber in color.
| Application | Quantity |
|---|
| Auto. Transmission |
| Discovery (2) | 9.9 Qts. (9.4L) |
| Freelander (3) | 4.2 Qts. (4.0L) |
| Range Rover (4) | 10.2 Qts. (9.7L) |
| Cooling System (Includes Heater) (5) |
| Discovery | 12.1 Qts. (11.5L) |
| Freelander | 8.3 Qts. (7.9L) |
| Range Rover | 12.0 Qts. (11.4L) |
| Crankcase (Includes Filter) |
| Discovery (6) |
| Without Oil Cooler | 6.1 Qts. (5.8L) |
| With Oil Cooler | 6.6 Qts. (6.2L) |
| Freelander (7) | 5.5 Qts. (5.2L) |
| Range Rover (8) | 6.2 Qts. (5.9L) |
| Differential (Synthetic 75W/90R) |
| Front & Rear Differentials (9) |
| Discovery & Range Rover | 1.7 Qts. (1.6L) |
| Rear Differential (10) |
| Freelander | 1.8 Qts. (1.7L) |
| Intermediate Reduction Drive (11) |
| Freelander | 1.2 Qts. (1.1L) |
| Transfer Case |
| Discovery (9) | 2.1 Qts. (2.0L) |
| Range Rover (4) | 2.1 Qts. (2.0L) |
| (1) Fluid capacities are approximate and provided as a guide only. All fluid levels must be verified using dipstick or fluid level plugs. (2) Use Dexron IID or III, or equivalent. (3) Use Texaco N402 or equivalent. (4) Use Dexron-III or equivalent. (5) Manufacturer recommends Havoline Extended Life Coolant (XLC) or any ethylene glycol based coolant (containing no methanol) with non-phosphate corrosion inhibitors for use in aluminum engines. If using Havoline XLC coolant, DO NOT mix other coolants with Havoline XLC type coolant. (6) Manufacturer recommends 5W/30. Optional is 10W/40. (7) Manufacturer recommends 5W/40 or 5W/50. (8) Manufacturer identifies 5W/30 through 20W/50. See owners manual for temperature/viscosity recommendations. (9) Use Texaco Multigear (semi-synthetic) 75W/90R or equivalent. (10) Use Texaco Multigear (semi-synthetic) 80W/90 ETL 7441. (11) Use Texaco S5 75W/90 (full-synthetic). |
| (1) | Fluid capacities are approximate and provided as a guide only. All fluid levels must be verified using dipstick or fluid level plugs. |
| (2) | Use Dexron IID or III, or equivalent. |
| (3) | Use Texaco N402 or equivalent. |
| (4) | Use Dexron-III or equivalent. |
| (5) | Manufacturer recommends Havoline Extended Life Coolant (XLC) or any ethylene glycol based coolant (containing no methanol) with non-phosphate corrosion inhibitors for use in aluminum engines. If using Havoline XLC coolant, DO NOT mix other coolants with Havoline XLC type coolant. |
| (6) | Manufacturer recommends 5W/30. Optional is 10W/40. |
| (7) | Manufacturer recommends 5W/40 or 5W/50. |
| (8) | Manufacturer identifies 5W/30 through 20W/50. See owners manual for temperature/viscosity recommendations. |
| (9) | Use Texaco Multigear (semi-synthetic) 75W/90R or equivalent. |
| (10) | Use Texaco Multigear (semi-synthetic) 80W/90 ETL 7441. |
| (11) | Use Texaco S5 75W/90 (full-synthetic). |
SERVICE INTERVALS & SPECIFICATIONS
| Component | Interval (Miles) | Interval (Months) |
|---|
| Active Cornering Enhancement (ACE) Filter |
| Discovery | 75,000 | 60 |
| Air Filter (1) |
| Discovery & Range Rover | 30,000 | 24 |
| Freelander | 25,000 | 24 |
| Brake Fluid |
| Discovery & Range Rover | 30,000 | 24 |
| Freelander | 36,000 | 36 |
| Camshaft Belt |
| Freelander | 75,000 | 72 |
| Coolant |
| Discovery & Range Rover | 30,000 | 24 |
| Freelander | 36,000 | 36 |
| Fuel Filter |
| Discovery & Range Rover | (2) | (2) |
| Freelander | 125,000 | 120 |
| Engine Oil & Oil Filter (1) |
| Discovery & Range Rover | 7500 | 6 |
| Freelander | 3000 | 3 |
| Front & Rear Differential Oil |
| Discovery & Range Rover | 30,000 | 24 |
| First Fluid Change | 7500 | 6 |
| Maintenance (Scheduled) Fluid Change | 90,000 | 72 |
| Intermediate Reduction Drive (IRD) |
| Freelander | (2) | (2) |
| Pollen Filter | 12,000 | 12 |
| Rear Differential Oil |
| Freelander | (2) | (2) |
| Serpentine Accessories Drive Belt Replacement |
| Discovery | 45,000 | 36 |
| Freelander | 100,000 | 96 |
| Range Rover | 60,000 | 48 |
| Self Leveling Suspension (SLS) Filter |
| Discovery | 60,000 | 48 |
| Spark Plugs (1) | 60,000 | 48 |
| Transfer Case Oil |
| Discovery & Range Rover | 30,000 | 24 |
| Transmission Filter (A/T) |
| Discovery | 30,000 | 24 |
| Transmission Fluid |
| Discovery & Range Rover | 30,000 | 24 |
| Freelander | 60,000 | 60 |
| (1) Required emissions maintenance. On all models, when replacing air cleaner, ensure air cleaner housing drain holes are clear. (2) Service interval information not available from manufacturer. |
| (1) | Required emissions maintenance. On all models, when replacing air cleaner, ensure air cleaner housing drain holes are clear. |
| (2) | Service interval information not available from manufacturer. |
DRIVE BELT INSPECTION
Note. All models are equipped with automatic belt tensioner. Belt tension adjustment is not required. If belt is removed and reinstalled, ensure direction of belt rotation is not changed. Replace belt if belt tensioner indicator reaches end of slot.
ENGINE COMPRESSION
Check engine compression at normal operating temperature with all spark plugs removed. To prevent damage to catalytic converter, make tests quickly and only when necessary.
Note. Compression specifications are not supplied by manufacturer. Difference between cylinders must not exceed 25 percent.
VALVE CLEARANCE
Note. All models are equipped with hydraulic lifters. No adjustments are required.
IGNITION SYSTEM
Note. On Freelander, left (front) cylinders have spark plug wires. On right (rear) cylinders, ignition coils are mounted directly onto spark plugs.
IGNITION COIL
| Application | Primary | Secondary |
|---|
| Discovery & Range Rover | 0.45-0.55 Ohms | 12,000-14,600 Ohms |
| Freelander | (1) | (1) |
| (1) Information not available from manufacturer. |
| (1) | Information not available from manufacturer. |
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)
SPARK PLUGS
| Application | Champion No. |
|---|
| Discovery & Range Rover | (1) RC11PYB4 |
| Freelander | (2) GSP 66427 |
| (1) Do not attempt to adjust spark plug gap. (2) Spark plug manufacturer is not identified. |
| (1) | Do not attempt to adjust spark plug gap. |
| (2) | Spark plug manufacturer is not identified. |
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|
| Discovery & Range Rover | (1) 0.038-0.042 (0.95-1.05) | 15 (20) |
| Freelander | 0.038-0.042 (0.95-1.05) | 18 (25) |
| (1) Do not attempt to adjust spark plug gap. |
| (1) | Do not attempt to adjust spark plug gap. |
SPARK PLUG SPECIFICATIONS
Scheme 3
Scheme 3: Firing Order (Discovery)
Scheme 4
Scheme 4: Firing Order (Freelander)
Scheme 5
Scheme 5: Firing Order (Range Rover)
IGNITION TIMING
On Discovery and Range Rover, ignition timing is controlled by Bosch Motronic M5.2.1 engine management system through the ECM and is not adjustable.
| Application | Specification |
|---|
| Discovery & Range Rover | (2) 12°BTDC @ Idle |
| Freelander | (3) |
| (1) Idle speed and timing are computer controlled and are not adjustable. (2) Expected value of ignition timing at normal operating temperature. (3) Information not available from manufacturer. |
| (1) | Idle speed and timing are computer controlled and are not adjustable. |
| (2) | Expected value of ignition timing at normal operating temperature. |
| (3) | Information not available from manufacturer. |
IGNITION TIMING (Degrees BTDC) (1)
FUEL PRESSURE
| Application | Pressure psi (bar) |
|---|
| Discovery, Freelander & Range Rover | (1) 51 (3.5) |
| (1) Regulated fuel pump pressure. |
| (1) | Regulated fuel pump pressure. |
FUEL INJECTOR RESISTANCE
| Application | Ohms @ 68°F (20°C) |
|---|
| Discovery & Range Rover | 13.8-15.2 |
| Freelander | 13-16 |
IDLE SPEED & MIXTURE
Note. Before checking idle speed and mixture ensure air and fuel filters are okay. Check vacuum pipes and hoses for correct routing, leaks and/or restriction. Check ignition system for poor connections or loose wires. Perform repairs as necessary.
Base Idle Speed
Base idle speed is not adjustable. If base idle speed is suspected of being out of specification, verify throttle cable adjustment. See CABLE ADJUSTMENT in ON-VEHICLE ADJUSTMENTS article. If throttle cable adjustment is okay, see appropriate SELF-DIAGNOSTICS ARTICLE. For computer controlled idle speed specifications, see IDLE SPEED SPECIFICATIONS table.
| Application | Specification |
|---|
| Idle Speed (1) |
| Discovery | 610-710 RPM |
| Freelander | 650-800 RPM |
| Range Rover | 660 RPM |
| (1) Idle speed is controlled by ECM. Specification is in Neutral with accessories off. |
| (1) | Idle speed is controlled by ECM. Specification is in Neutral with accessories off. |
IDLE SPEED SPECIFICATIONS
Idle Mixture
Note. On Discovery and Range Rover, idle mixture is controlled by Bosch Motronic 5.2.1 engine management system through the ECM. On Freelander, idle mixture is controlled by Siemens MS43 engine management system through the ECM. On all models, mixture is not adjustable, but should be checked as part of normal tune-up procedure using an exhaust gas analyzer. If mixture is not within specifications, see appropriate SELF-DIAGNOSTICS article. Always refer to SERVICE INFORMATION underhood label in engine compartment. If underhood label and specifications differ, always use underhood label specifications.
| Application | Specification |
|---|
| CO @ Idle (1) |
| Discovery | 0.5% Or Less |
| Freelander | (2) |
| Range Rover | (2) |
| (1) Idle mixture is not adjustable. (2) Information not available from manufacturer. |
| (1) | Idle mixture is not adjustable. |
| (2) | Information not available from manufacturer. |
IDLE MIXTURE SPECIFICATIONS
THROTTLE POSITION SENSOR
| Application | Voltage |
|---|
| Discovery |
| Closed Throttle | Less Than 0.5 |
| Wide Open Throttle (WOT) | More Than 4.5 |
| Freelander |
| TP Sensor 1 |
| Closed Throttle | Approx. 0.5 |
| Wide Open Throttle (WOT) | Approx. 4.5 |
| TP Sensor 2 (1) |
| Closed Throttle | Approx. 4.5 |
| Wide Open Throttle (WOT) | Approx. 0.5 |
| Range Rover |
| Closed Throttle | Approx. 0.5 |
| Wide Open Throttle (WOT) | Approx. 4.5 |
| (1) TP sensor 2 is used as a plausability check for TP sensor 1. |
| (1) | TP sensor 2 is used as a plausability check for TP sensor 1. |
THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS
