Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Land Rover DiscoveryCoolant Type & Capacity
OEM spec from the factory service manual for the HSE, 4.6 4 variant.
Quick Answer
Coolant Type
50/50 mixture of Havoline Extended Life Coolant (XLC), or any Ethylene Glycol based Antifreeze (containing no methanol) and water
Capacity
8.40 QTS.
7.94 L
Variant
HSE, 4.6 4
This vehicle's factory manual
2003 Land Rover Discovery: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
What You'll Need
Engine Coolant / Antifreeze
50/50 mixture of Havoline Extended Life Coolant (XLC), or any Ethylene Glycol based Antifreeze (containing no methanol) and water for Land Rover Discovery
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Tool
Spill-Free Coolant Funnel
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Tester
Coolant Tester / Hydrometer
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Drain Pan
Coolant Drain Pan
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Related for Your 2003 Land Rover Discovery
Maintenance Specs
Frequently Asked Questions
- What type of coolant does a 2003 Land Rover Discovery take?
- The 2003 Land Rover Discovery requires 50/50 mixture of Havoline Extended Life Coolant (XLC), or any Ethylene Glycol based Antifreeze (containing no methanol) and water. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the HSE, 4.6 4 configuration.
- How much coolant does a 2003 Land Rover Discovery hold?
- The 2003 Land Rover Discovery cooling system capacity is 8.40 QTS. (7.94 L).
- Can I use universal coolant in my 2003 Land Rover Discovery?
- It is strongly recommended to use coolant that meets the 50/50 mixture of Havoline Extended Life Coolant (XLC), or any Ethylene Glycol based Antifreeze (containing no methanol) and water specification. Universal coolants may not provide the correct corrosion protection for your engine's materials.
- What happens if I use the wrong coolant in my 2003 Land Rover Discovery?
- Using coolant that does not meet the OEM specification can cause corrosion, gasket damage, and overheating. Always verify the correct coolant type before topping off or flushing the system.