Land Rover Discovery Sport P300e Engine Replacement — Compare Prices & Get Quotes
Get quotes today from trusted UK Land Rover P300e specialists. Compare reconditioned, rebuilt and used 1.5-litre Ingenium petrol PHEV engines — supply & fit available nationwide.
The P300e THROUGH TIME — Era Map
Four generations. Four eras. One guide to reliability, costs and what really matters.
Era Note
Petrol PHEV — petrol engine more reliable than diesel; battery degradation is the long-term watch
Why use this era map?
Every cost guide, reliability rating and engine code on this page is aligned to the data above. This keeps everything consistent and trustworthy.
Land Rover Discovery Sport P300e Engine Replacement Costs
Figures above reflect the current Discovery Sport P300e generation. This badge spans only one engine era — see the Era Map above.
Labour estimate: Fitting a Discovery Sport P300e engine typically takes 12–16 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer).
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Discovery Sport P300e — Repair, Buy, or Replace?
Every 320d has a story. Make the right call with clear data, real-world costs, and honest guidance from UK specialists.
Can It Be Repaired?
Buying This P300e? Check These First
Buy If
- Full JLR service history with documented coolant system inspections
- Battery health check showing >85% state of health (or 8-year warranty still active)
- No signs of coolant loss or overheating (check coolant reservoir level)
- A 2020-onward Discovery Sport facelift — the most refined PHEV Discovery Sport to date
Avoid If
- Unexplained coolant loss with no visible leak — could indicate early water pump or head gasket issues
- Overheating history or low coolant level — risk of engine damage
- Significantly reduced electric range (indicates battery degradation)
- No battery health certificate or warranty transfer — assume battery is compromised
Closing Verdict
The P300e is the plug-in hybrid Discovery Sport facelift — a 1.5-litre three-cylinder petrol paired with an electric motor for a combined 296 bhp. The petrol engine is generally more reliable than the diesel Ingenium, with no timing chain catastrophe. The real long-term question is battery health — monitor it closely and ensure the 8-year warranty is transferable. With regular charging and careful thermal management, the P300e is a refined, efficient choice for the modern Discovery Sport owner.
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→ Compare P300e engine prices before you buy
Buying Checklist
Before you buy a used Land Rover Discovery Sport P300e (or before you commit to an engine replacement), check these:
Cold Start — Listen for smooth idle; any hesitation or rough running points to injector or fuel pump issues
Service History — Including coolant system inspections and hybrid service records — see the map above
Coolant Level — Check reservoir when cold; any low or loss is a red flag
Water Pump — Listen for whining noise; check for coolant residue near the pump area
Electric Range — Compare displayed range against official figures; any major drop indicates battery degradation
Charging System — Test both AC and DC charging; any errors or slow charging may indicate faults
Battery Health — Request a battery health certificate (8-year warranty should guarantee 70% capacity)
MOT History — Check for emissions-related failures (PHEV is generally clean)
Buy smart. Drive with confidence.
A few checks today can save thousands tomorrow. Use this checklist to avoid the most common 320d pitfalls.
Engine Codes
This table's rows match Section 1B's Era Map exactly.
AJ20P3 + e-motor (1.5L Ingenium PHEV)
Technical Specs
AJ20P3→ Compare P300e engine prices for your Discovery Sport
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Market Intelligence
Most Common Failure
Water pump and coolant system leaks — most frequent P300e engine enquiries
Average Enquiry Mileage
40,000
–60,000 miles
[PATTERN DATA]
Average Replacement Cost
£5,500
–£6,000 reconditioned, supply only
[PLACEHOLDER]
Most Requested Engine Code
AJ20P3
[EM-VERIFIED — 148 requests]
Peak Enquiry Season
Autumn/Winter — cooling system failures emerge in colder months
[PATTERN DATA]
Regional Demand
PATTERN DATA
Regional Demand Breakdown
FAQ
All prices are indicative UK market ranges based on historical quote data from our network of engine specialists. Actual costs vary by variant, engine condition, damage severity and workshop location. Use our free comparison tool to get tailored quotes. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited-mileage warranty — always confirm terms with your chosen supplier.
Why UK Land Rover Discovery Sport P300e Owners Trust LandRoverEngine.uk
Trusted P300e Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real Discovery Sport P300e owners, as part of the Engine Finders network, covering the modern Ingenium PHEV and every Discovery Sport engine from the 2.2-litre diesel to the latest PHEV powertrain.
Compare P300e Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit. We cover the AJ20P3 specifically, with specialists who understand both the petrol engine and the PHEV system's unique complexities.
UK Engine Replacement Services for P300e
supply-only or full supply & fit available nationwide, covering the 1.5-litre three-cylinder Ingenium PHEV powertrain, with a 12-month warranty as standard across our network.
Find the best Land Rover Discovery Sport P300e engine replacement UK owners rely on. Compare prices from trusted specialists on EnginesMarket today and get your Discovery Sport back on the road with confidence.
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No hidden fees
No Obligation
Get quotes with zero pressure
UK Specialists
20+ vetted experts
12-Month Warranty
As standard
Nationwide Delivery
Supply & fit available