Land Rover Discovery SD4 Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Land Rover Discovery SD4 engine specialists. Compare prices on reconditioned, rebuilt and used 204DTA engines to find the best supply and fit solution.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £4,800 to £7,000 [ESTIMATED - using 204DTD Ingenium as proxy]
Used from £2,000 · Reconditioned from £3,500 · Common codes: 204DTA
From £2,000
Tested, bare/short engine
From £3,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Land Rover Discovery SD4 specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Land Rover Discovery SD4 Replacement Engineto Finding the Best Land Rover Discovery SD4 Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryLand Rover Discovery SD4 - Engine History & Specs at a Glance
When the SD4 variant launched in the L462 Discovery, it introduced a highly efficient 2.0-litre twin-turbo Ingenium diesel engine, offering a compelling balance of torque, fuel economy, and reduced emissions compared to the larger V6 options.
Variant HistoryLand Rover Discovery SD4 - Engine History & Specs at a Glance
When the SD4 variant launched in the L462 Discovery, it introduced a highly efficient 2.0-litre twin-turbo Ingenium diesel engine, offering a compelling balance of torque, fuel economy, and reduced emissions compared to the larger V6 options.
Land Rover Discovery SD4
Fuel TypeDiesel
Engine Size Range2.0L
Power Output Range240hpEngine History Timeline
204DTA (2.0L Twin-Turbo Diesel) 240hp, introduced to the Discovery 5 (L462) lineup as the SD4 trim, featuring an 8-speed ZF automatic transmission and permanent 4WD.
Continued with minor emissions and software calibrations until the variant was gradually phased out in favour of the D250/D300 mild-hybrid Ingenium units.
Key Specs Snapshot
Fuel TypeDieselEngine Size Range2.0LPower Output Range240hpYears Produced2017-2021Every engine fitted to the Land Rover Discovery SD4 is covered below, with UK rebuilt pricing and known failure points.
Land Rover Discovery SD4 Engine Codes - Specifications & Replacement CostLand Rover Discovery SD4 Engine Codes - Specifications & Replacement Cost
2.0L Diesel (2017-2021)
Power Output240hpYears Fitted2017-2021
Compatible Trim Levels
- Discovery SD4
- Discovery SD4 HSE
- Discovery SD4 HSE Luxury
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£2,000-£3,500 [ESTIMATED - using 204DTD Ingenium as proxy]
Reconditioned
Addressed known issues, tested
£3,500-£5,800 [ESTIMATED - using 204DTD Ingenium as proxy]
Rebuilt
Full teardown, upgraded internals
£4,800-£7,000 [ESTIMATED - using 204DTD Ingenium as proxy]
Common Failure
Timing chain tensioner wear and oil dilution from frequent DPF regeneration cycles are commonly reported issues, typically emerging between 60,000-120,000 miles.
The Land Rover Discovery SD4 (204DTA) is a modern, efficient unit, but early Ingenium diesel architectures are susceptible to specific timing chain and oil dilution issues. Rebuilt engines through EnginesMarket include upgraded components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the Land Rover Discovery SD4 204DTA Requires Attention
Affected Vehicles
Land Rover Discovery SD4 (204DTA, 2017-2021)
Typical Failure Mileage
60,000-120,000 miles
Root Cause
Early production tensioners can wear prematurely, leading to chain stretch, rattling on cold starts, and potential catastrophic engine failure if ignored.
Why It Happens
Early production tensioners can wear prematurely, leading to chain stretch, rattling on cold starts, and potential catastrophic engine failure if ignored.
Dealer (parts + labour)
£2,500-£4,000
Specialist (parts + labour)
£1,200-£2,500
What it involves
Replacing the chain, guides, and installing an upgraded tensioner.
Suitability
Effective if caught early before internal valve or piston damage occurs.
1 - 2 daysDealer (parts + labour)
£7,500-£11,000
Specialist (parts + labour)
£4,800-£7,000 [ESTIMATED - using 204DTD Ingenium as proxy]
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty.
Suitability
The right call if chain failure has caused catastrophic internal damage.
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor/Preventative (Chain Kit Replacement) Minor | £2,500-£4,000 | £1,200-£2,500 | Replacing the chain, guides, and installing an upgraded tensioner. | Effective if caught early before internal valve or piston damage occurs. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £7,500-£11,000 | £4,800-£7,000 [ESTIMATED - using 204DTD Ingenium as proxy] | Supply & fit, upgraded components addressing the original failure point, 12-month warranty. | The right call if chain failure has caused catastrophic internal damage. | 1 - 2 days |
Our Recommendation
Our Recommendation
For the Land Rover Discovery SD4, strict adherence to shortened oil change intervals (every 6,000-8,000 miles) is the best preventative measure against oil dilution. However, if you are experiencing timing chain rattle or have suffered catastrophic internal failure, a reconditioned 204DTA engine with upgraded tensioners is the safest long-term solution to preserve performance and value.
Don't Let Engine Failure Write Off Your Land Rover Discovery SD4
Protect your premium investment by comparing quotes from vetted UK specialists. Every engine supplied through our network features upgraded components to prevent known Ingenium failures, backed by a minimum 12-month unlimited mileage warranty and nationwide delivery options. Avoid main dealer premiums without sacrificing the refinement your Discovery deserves.
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Land Rover Discovery SD4. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Land Rover Discovery SD4 Engine ReplacementFrequently Asked Questions
Question 1How much does a Land Rover Discovery SD4 engine replacement cost-
A reconditioned Land Rover Discovery SD4 (204DTA) engine typically costs between £3,500 and £5,800 for supply only, with fully rebuilt options ranging from £4,800 to £7,000.
- Prices vary based on the supplier and whether you choose supply-only or supply-and-fit.
- Used engines are cheaper (£2,000-£3,500) but carry higher risk without a comprehensive warranty.
Question 2What are the signs of timing chain failure in a Land Rover Discovery SD4-
The most common early warning sign is a distinct rattling or ticking noise from the engine bay, particularly during cold starts.
- You may also notice a gradual loss of performance or the illumination of the engine management light.
- In severe cases, chain stretch can lead to catastrophic internal engine damage if not addressed immediately.
Question 3Is it worth replacing the engine in a Land Rover Discovery SD4-
Yes, given the strong retained value of the L462 Discovery SD4 (typically £18,000-£35,000), a rebuild is highly financially viable.
- A reconditioned 204DTA engine with a 12-month warranty restores peak performance and protects your asset's premium value.
- Replacement cost is a small fraction of the vehicle's overall market value.
Question 4How long does a Land Rover Discovery SD4 engine replacement take-
A professional supply and fit service for the Land Rover Discovery SD4 typically takes 2 to 4 days due to the complexity of the L462 chassis and twin-turbo Ingenium architecture.
- This includes careful removal, thorough engine bay cleaning, and precise installation of the replacement 204DTA unit.
- Comprehensive post-fit testing and ECU calibration are completed before handover.
Question 5Can the oil dilution issue in the Land Rover Discovery SD4 be prevented-
Yes, the most effective preventative measure is adhering to shortened oil and filter change intervals, ideally every 6,000 to 8,000 miles, especially for vehicles used primarily for short, urban journeys.
- Ensuring the vehicle completes full DPF regeneration cycles by occasionally driving at sustained motorway speeds also helps.
- Many specialists also recommend applying the latest ECU software updates to optimise regeneration behaviour.
Why Choose UsCompare Land Rover Discovery SD4Engine PricesToday
100+ Land Rover Discovery SD4 engines supplied through our network
12-Month Warranty on every rebuilt Land Rover Discovery SD4 engine
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premium supply & fit available for the L462 SD4
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