Maintenance and Care
This guide provides essential information for maintaining your Land Rover Discovery 4. Regular maintenance ensures optimal performance and longevity of your vehicle.
General Maintenance and Safety
Spare Parts and Additional Equipment: Using non-certified parts or making unauthorized modifications can void your warranty and compromise safety. Land Rover is not liable for any damage resulting from such actions.
Airbag System: Airbag system components are sensitive to electrical and mechanical stress. Unauthorized modifications can lead to accidental deployment or system failure.
Anti-theft System: Do not make any changes or modifications to the anti-theft system, as this may lead to system failure.
Pre-drive Checks: Ensure all lights, horn, turn signals, wipers, washers, and warning indicators are functioning correctly. Check seat belts and brakes.
Fluid Leaks: Check for any fluid leaks under the vehicle.
Weekly Checks:
- Engine oil level.
- Coolant level.
- Brake fluid level.
- Power steering fluid level.
- Washer fluid level.
- Tire pressure and condition.
- Air conditioning operation.
Note: Engine oil level should be checked more frequently if the vehicle is driven at high speeds for extended periods.
Heavy Duty Operation: For vehicles used in severe conditions (dusty roads, sand, rough roads, water crossings, extreme temperatures, towing, high altitudes, or roads treated with corrosive substances), pay extra attention to maintenance requirements. Consult your dealer or authorized workshop for advice.
Diesel Particulate Filter (DPF): Vehicles with diesel engines are equipped with a DPF to reduce emissions. The DPF collects exhaust particles, which are normally burned off during a regeneration cycle. If the vehicle is frequently used for short trips or in cold weather, the engine may not reach the optimal temperature for regeneration, leading to a clogged DPF. A warning light and message (DPF Full) will appear on the dashboard. To initiate regeneration, drive the vehicle at a moderate speed (60-112 km/h or 40-70 mph) for at least 20 minutes. A temporary increase in fuel consumption may occur during regeneration.
Break-in Period
The break-in period is typically the first 3000 km (2000 miles). During this period:
- Avoid frequent cold starts followed by short trips.
- Prefer longer drives.
- Do not fully depress the accelerator pedal.
- Avoid prolonged high-RPM driving and sudden stops.
- Do not participate in track events or performance driving schools.
For the first 2000 km (1200 miles):
- Vary engine speed and road speed, but do not exceed 4500 RPM or 170 km/h (105 mph).
Between 2000 km (1200 miles) and 3000 km (2000 miles):
- Gradually increase engine speed and road speed.
- Exceeding 5000 RPM is permissible only for short periods, such as during overtaking.
Always (not just during break-in):
- Do not exceed 4000 RPM until the engine is fully warmed up.
- Avoid driving in excessively high or low gears to prevent engine strain.
Owner Maintenance
Report any significant or sudden drops in fluid levels or uneven tire wear to qualified specialists immediately.
Perform regular checks between scheduled maintenance intervals.
Garage Safety
- Do not touch hot engine components or exhaust systems immediately after driving.
- Ensure adequate ventilation when the engine is running, as exhaust fumes are toxic.
- Never work under a vehicle supported only by a jack.
- Keep hands and clothing away from drive belts, pulleys, and fans. Some fans may continue to rotate after the engine is switched off.
- Remove metal bracelets and jewelry before working in the engine bay.
- Do not touch electrical terminals or components with tools or metal objects when the engine is running or the starter is engaged.
Fuel System
Only qualified specialists should disassemble or replace fuel system components.
Keep away from the engine bay when using devices that can create sparks or unshielded lamps.
Wear protective clothing and gloves when necessary.
Used Engine Oil
Prolonged contact with engine oil can cause skin problems, including dermatitis and skin cancer. Wash hands thoroughly after contact.
Dispose of used oil responsibly, in accordance with local regulations.
Opening and Closing the Hood
Opening:
- Pull the hood release lever located in the left front footwell.
- Lift the safety catch under the center of the hood and raise the hood.
Closing:
- Lower the hood until the safety catch engages.
- Press down on the hood with both hands until it clicks.
- Ensure both catches are securely fastened by trying to lift the front edge of the hood.
Warning: Do not drive if the hood is secured by only one safety catch.
Under-Hood Covers - Removal and Installation
Removal:
- Before installing covers, ensure no hoses, cables, or other items are trapped between the cover and the body.
- Slide the rear edge of the cover under the rubber seal on the scuttle panel.
- Ensure the front edge of the cover is flush with the body, then press down to secure it (until it clicks).
Installation:
- Slide the rear edge of the cover under the rubber seal on the scuttle panel.
- Ensure the front edge of the cover is flush with the body, then press down to secure it (until it clicks).
Note: Some vehicles have LED lamps that are not serviceable.
Lamp Replacement
General:
- Ensure the ignition is off and the relevant lamp is off before replacement.
- Use only lamps of the correct type and specifications. Consult your dealer or authorized workshop if you are unsure.
Halogen Lamps:
- Handle halogen bulbs carefully, avoiding touching the glass with bare hands. Use a cloth or gloves. Clean with denatured alcohol if necessary.
Xenon Lamps:
- Replacement or servicing of xenon lamps should only be performed by qualified specialists.
- Xenon lamps operate at high voltage and temperature. Contact with these components can cause severe injury or burns. Ensure they have cooled down before touching.
- Xenon bulbs contain mercury, a toxic substance. Dispose of them properly according to local regulations.
Headlamp Replacement:
- Do not place removed headlamps glass-down on hard or abrasive surfaces to avoid scratching the lens.
- Press the four upper clips and carefully pull the grille forward.
- Remove the grille and store it safely.
- Carefully release the rear mounting clips of the headlamp while holding the headlamp in place.
- Lift the front of the headlamp and remove it from its housing.
- Disconnect the electrical connector at the rear of the headlamp.
Note: If the clips (3) are difficult to release, try pushing them down to allow the headlamp to move forward.
Note: Place the headlamp assembly face down on a soft surface to prevent damage to the lens.
Accessing Turn Signals: To access the turn signal, the headlamp guide assembly must be fully removed. Remove the four screws securing the guide assembly.
Note: Installation is the reverse of removal.
Front Lamp Identification:
- A. Xenon lamp.
- B. Halogen lamp.
Headlamp Bulb Replacement:
- Remove the headlamp assembly (see page 271).
- Remove the cover at the rear of the headlamp assembly. Rotate and remove.
- Rotate the bulb holder counter-clockwise and remove it from the housing.
- Caution: Do not touch the bulbs with bare fingers. Use a cloth for removal and installation. Clean with ethyl alcohol or denatured alcohol if necessary.
- Release the two clips and disconnect the electrical connector.
- Insert the new bulb and repeat the steps in reverse order.
Side Lamp Bulb Replacement:
- Remove the cover. Rotate and lift.
- Disconnect the electrical connector and remove the bulb assembly.
- Press and rotate the bulb to remove it.
Front Fog Lamp Bulb Replacement:
- Using the slot in the top of the lamp bezel, use a suitable tool to extract it.
- Remove the mounting bolts and then the headlamp assembly.
- Rotate the bulb holder counter-clockwise and remove it from the housing.
Turn Signal Bulb Replacement:
- Rotate the bulb holder 45 degrees counter-clockwise.
- Rotate and remove the bulb assembly from the housing.
- Press and rotate the bulb to remove it.
Note: Bulb locations for turn signals may vary depending on the vehicle's specification.
Rear Lamp Removal:
- Open the tailgate and remove the two screws from the inner edge of the rear lamp assembly.
- Carefully pull the headlamp assembly out of the vehicle.
- Disconnect the electrical connector and remove the assembly.
- Place the assembly on a flat surface with a soft covering, face down, to avoid damaging the lens.
- Installation is the reverse of removal.
Rear Lamp Bulb Replacement:
Note: Turn signals, stop lamps, and rear position lamps are LED and are not serviceable.
- Reversing lamp.
- Rear fog lamp.
Rotate the relevant bulb holder and pull to access the bulb. Press, rotate, and pull the bulb to remove it.
License Plate Lamp Replacement:
Follow the illustrations. Insert the new bulb and reinstall the parts.
Interior Lamp Replacement:
Follow the illustrations. Insert the new bulb and reinstall the parts.
- Footwell, door, and tailgate illumination lamps.
- Front and rear interior and reading lamps.
- Vanity mirror lamps.
- Third-row interior lamps.
Resetting Window and Sunroof Functions
Window Reset:
Window regulator settings may need to be reset after the battery is disconnected, discharged, or the power supply is interrupted.
- Fully close the window.
- Release the switch, then pull it up to the closed position and hold for 1 second.
- Repeat for each window.
Sunroof Reset:
If the sunroof is partially open when the battery is disconnected or power is interrupted, recalibration is necessary.
- Turn on the ignition.
- With the sunroof closed, press and release the front of the switch. The sunroof will tilt.
- Press and hold the front of the sunroof switch for 20 seconds.
- After 20 seconds, the sunroof will begin to move. Continue holding the switch until the full open/close cycle is complete.
- Release the switch when the sunroof stops.
The sunroof should now operate normally.
Vehicle Cleaning
Body:
- Before washing, rinse the vehicle with a hose to remove loose dirt.
- High-pressure washers can force water through door and window seals, potentially damaging seals and locks. Avoid directing the spray at air intakes, heater intakes, body seals (doors, sunroof, windows), or other components like lamps, mirrors, and exterior trim.
- High-pressure washers can also damage wheels or the braking system. Do not spray water directly onto wheels or brakes.
- Do not use high-pressure cleaning equipment for the engine bay.
- After washing, especially with a pressure washer, drive a short distance to dry the brakes.
- Corrosive substances like bird droppings can damage the paintwork and should be removed as soon as possible.
- Use only cleaning products designed for automotive use.
- Do not apply polish to unpainted bumper areas, as it can damage the decorative finish.
Sensors and Cameras:
- Do not spray water directly onto sensors or cameras with a high-pressure washer.
- Do not use abrasive materials or sharp objects to clean sensors and cameras. Use only approved automotive shampoos.
- Keep parking assist sensors clean for accuracy.
- Clean cameras with a slightly damp cloth and glass cleaner if necessary.
Undercarriage Care:
Regularly rinse the undercarriage with clean water, paying attention to areas where dirt accumulates. If you notice any damage or corrosion, have the vehicle inspected by your dealer or authorized workshop as soon as possible.
After Off-Road Driving:
- Ensure air intake areas and the front grille are clean and free of debris. Pay special attention to the lower grille and radiator, as blockages can lead to engine overheating.
- Clean the vehicle's undercarriage as soon as possible after off-road driving.
- Use a hose to spray water through the front bumper (as indicated by arrows) to remove dirt from the radiator and air conditioning condenser.
Interior:
- Some cleaning agents contain harmful substances that can negatively affect health or damage the interior if misused.
- Do not polish the dashboard, as polished surfaces can cause glare and impair visibility.
- Clean plastic and fabric surfaces with warm water and mild soap. Wipe dry with a soft cloth.
Leather Upholstery:
- Use only cleaning products specifically designed for leather. Avoid chemical cleaners, alcohol, and abrasive materials, as they can damage the leather. Using unapproved products may void the warranty.
- Clean and condition leather upholstery at least every six months.
- To prevent stains, inspect and clean the upholstery every 1-2 months. Use a clean, damp, lint-free cloth to wipe away dust. Do not saturate the leather.
- If stains are not removed immediately (e.g., tea, coffee, ink), they may become permanent.
- If using a professional car detailing service, ensure they are familiar with these instructions.
- Note: Some materials/fabrics can transfer dye, potentially causing discoloration on light-colored leather. Clean affected areas promptly and apply protective treatments.
Seat Belts:
- Avoid getting water, cleaning agents, or fabric fibers into the seat belt mechanisms, as this can affect their performance in a collision.
- Extend the seat belts fully and clean them with warm water and mild soap. Allow the belt webbing to air dry completely without artificial heat.
- Note: When cleaning seat belts, check for damage and wear. Report any damage to your dealer or authorized workshop.
Airbag Covers:
- Clean airbag covers only with a slightly damp cloth and a small amount of upholstery cleaner.
- Do not allow liquids to come into contact with airbag covers or surrounding surfaces, as this may impede proper deployment in an impact.
Instrument Panel, Touchscreen, and Audio System:
- Clean with a slightly damp cloth.
- Do not use chemical cleaners or household cleaning agents.
- To avoid errors, do not touch the touchscreen with multiple fingers simultaneously.
- Do not apply excessive force.
- Avoid contact with sharp, hard, or abrasive objects.
- Protect the touchscreen from prolonged exposure to direct sunlight.
Washer Jet Blockage:
- Do not operate the washer jets while clearing blockages or making adjustments. Washer fluid can irritate eyes and skin. Always read and follow the washer fluid manufacturer's instructions.
- If a washer jet is blocked, clear it with a thin wire. Ensure the wire is fully removed after cleaning. Washer jet position can be adjusted by inserting the tip of a needle into the jet and gently moving it.
Checking Fluid Levels
Location of Fluid Filler Openings:
- Brake fluid reservoir cap: A. For RHD vehicles; B. For LHD vehicles.
- Engine oil filler cap.
- Engine coolant filler cap.
- Windscreen washer fluid filler cap.
- Power steering fluid reservoir cap.
Warning: Do not operate the vehicle if there is a risk of leaking fluid contacting hot surfaces, such as the exhaust system.
Checking Engine Oil Level:
- Check the engine oil level weekly. If the oil level drops suddenly or significantly, consult qualified specialists.
Before checking the oil level, ensure:
- The vehicle is on a level surface.
- The engine is at normal operating temperature (oil is hot).
- The engine has been switched off for 10 minutes to allow the oil to stabilize.
To check the oil level:
- Turn on the ignition (without starting the engine).
- Ensure the transmission is in Park (P).
- Select the 'Service menu' using the navigation buttons (see Section 55, Instrument Panel Menu).
- In the 'Service menu', select 'Oil level display'. The instrument panel will show the current oil level and provide a topping-up recommendation. Follow the recommendation.
The oil level is displayed on a scale. Messages on the right indicate the required action.
- Engine Oil Level OK: The oil level is normal. No topping up is required.
- Add 0.5 Litre (or specified amount): The oil level is low. Add the recommended amount of oil.
- Engine Oil Level Overfilled: The oil level is too high. Consult a qualified specialist immediately. Do not drive the vehicle with excess oil, as this can cause serious engine damage.
If the 'Engine Oil Level Underfilled' message appears, add 1.5 litres (2.6 pints) of oil and recheck the level.
If the 'Engine Oil Level Not Available' message appears, the system is stabilizing. Turn off the ignition, wait 10 minutes, and check again.
If the 'ENGINE OIL LEVEL MONITOR SYSTEM FAULT' warning appears, consult a qualified specialist.
Adding Oil:
Warning: Using oil that does not meet the specified technical requirements may void the warranty if damage occurs.
Warning: Failure to use oils meeting specifications can lead to increased engine wear, sludge formation, and higher emissions. It can also cause engine failure.
Warning: Overfilling the engine with oil can cause serious damage. Add oil in small quantities and recheck the level to avoid exceeding the maximum limit.
- Remove the oil filler cap.
- Add oil as indicated on the display.
- Clean up any spilled oil.
- After 10 minutes (for 3.0L SD V6 diesel and V6 petrol engines) or 5 minutes (for 3.0L TD V6 diesel engines), recheck the oil level.
Use oil that meets the required technical specifications and is suitable for the climatic conditions in which the vehicle is operated. See page 349, Lubricants and Fluids.
Note: To raise the oil level from MIN to MAX on the dipstick for all models, approximately 1.5 litres (2.6 pints) of oil is required.
Checking Coolant Level:
Warning: Operating the engine without coolant can cause severe engine damage.
Check the coolant level in the expansion tank at least weekly (more often for high mileage or severe operating conditions). Check the level only when the system is cold.
Ensure the coolant level is between the 'COLD FILL RANGE' marks on the side of the expansion tank. Do not be concerned about coolant visible in the upper part of the tank.
If the level drops suddenly or significantly, have the vehicle inspected by a qualified specialist.
Adding Coolant:
Warning: Do not remove the filler cap on a hot engine, as hot steam or fluid can cause severe burns.
Warning: Do not allow antifreeze to come into contact with a hot engine, as it may cause a fire.
Slowly unscrew the filler cap to release any pressure before removing it completely.
Coolant is toxic and can be fatal if ingested. Keep coolant containers closed and out of reach of children. Seek immediate medical attention if ingested.
Note: In an emergency, if approved coolant is unavailable, use clean water, but be aware that freeze protection will be reduced. Do not use traditional coolant additives or water/vinegar mixtures, as antifreeze can damage paintwork, and vinegar can damage the washer pump.
Checking Brake Fluid Level:
Warning: Brake fluid is highly toxic. Keep containers closed and out of reach of children. Seek immediate medical attention if ingested.
Warning: Avoid getting fluid on your skin or in your eyes; rinse immediately with plenty of clean water.
Warning: Be careful not to spill brake fluid on a hot engine, as it may cause a fire.
Warning: Do not allow the brake fluid level to drop below the MIN mark while driving.
If the brake pedal feels softer than usual or the fluid level drops significantly, seek qualified assistance immediately. Driving under these conditions can increase braking distance or lead to complete brake failure.
If the fluid level in the brake fluid reservoir drops below the recommended level, a red warning light will illuminate on the instrument panel.
Note: If the warning light illuminates while driving, stop the vehicle safely as soon as possible, applying the brakes smoothly. Check the fluid level and top up as necessary.
Check the fluid level at least weekly (more often for high mileage or severe operating conditions) with the vehicle on a level surface. Do not turn the steering wheel after the engine is switched off.
The fluid level can be checked through the translucent reservoir body. The fluid level should be between the MIN and MAX marks.
To check the brake fluid level, you may need to remove the left or right under-hood cover, depending on whether the vehicle has left-hand or right-hand drive. See page 269, Under-Hood Covers - Removal.
The fluid level can be checked without removing the filler cap through the transparent reservoir wall. The brake fluid level should be between the MAX and MIN marks.
Adding Brake Fluid:
- Brake fluid can damage paintwork. Immediately remove any spilled fluid with an absorbent material and rinse the area with an automotive shampoo and water solution.
- Use only new fluid from a sealed container. Fluid from opened or previously drained containers may have absorbed moisture, affecting performance.
- Before removing the filler cap, clean it to prevent dirt from entering the reservoir.
- Remove the filler cap.
- Add the recommended brake fluid to the reservoir up to the MAX mark. See page 349, Lubricants and Fluids.
- Replace the cap and close the access panel.
Checking Power Steering Fluid Level:
Warning: Power steering fluid is highly toxic. Keep containers sealed and out of reach of children. Seek immediate medical attention if ingested.
Warning: Avoid getting fluid on your skin or in your eyes; rinse immediately with plenty of clean water.
Do not start the engine if the fluid level is below the MIN mark, as this can cause serious damage to the power steering pump.
If a significant drop in fluid level is noticed, seek qualified assistance immediately. This may lead to serious damage to the power steering pump.
If the fluid level drops slowly, you can top it up to the upper mark to reach a service station for inspection. However, it is recommended to seek qualified assistance before continuing to operate the vehicle.
Check and top up fluid when the vehicle is on a level surface with the engine off and the system cold. Do not turn the steering wheel after the engine is switched off.
The fluid level can be seen through the translucent reservoir body. The fluid level should be between the MIN and MAX marks.
Adding Power Steering Fluid:
- Power steering fluid can damage paintwork. Immediately remove any spilled fluid with an absorbent material and rinse the area with an automotive shampoo and water solution.
- Do not fill the reservoir above the MAX mark.
- Before removing the filler cap, clean it to prevent dirt from entering the reservoir.
- Remove the filler cap.
- Add the recommended PAS fluid to the reservoir to the level between the MIN and MAX marks. See page 349, Lubricants and Fluids.
- Replace the filler cap.
Checking Windscreen Washer Fluid Level:
Warning: Some washer fluids are flammable, especially if exposed to sparks. Do not allow washer fluid to come into contact with open flames or sources of ignition.
If the vehicle is operated in temperatures below 4°C (40°F), use a washer fluid with antifreeze protection. In cold weather, using fluid without antifreeze protection can impair visibility and increase the risk of an accident.
Warning: Do not add antifreeze or water/vinegar solutions to the washer fluid reservoir, as antifreeze can damage paintwork, and vinegar can damage the windscreen washer pump.
Spilling washer fluid on body panels may cause discoloration. Avoid spills, especially with undiluted fluids or high-concentration solutions. If spills occur, immediately rinse the affected area with water.
Adding Washer Fluid:
The washer fluid reservoir supplies fluid to the windscreen, rear window, and headlamp washers. Check the level in the reservoir and top up at least weekly to prevent freezing. Periodically operate the washers to check the function and aim of the jets.
- Before removing the filler cap, clean it to prevent dirt from entering the reservoir.
- Remove the filler cap.
- Fill the reservoir until the fluid is visible in the filler neck.
- Replace the filler cap.