Land Rover Discovery Sport P300e2020–present1 Engine Generation

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.

Supply & Fit Available
12-Month Warranty
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12 Specialists
Land Rover Discovery Sport P300e Engines - from £2,000 to £6,500Engine code: AJ20P3 + e-motor
GB
Instant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide Network

ERA MAP

The P300e THROUGH TIME - Era Map

Four generations. Four eras. One guide to reliability, costs and what really matters.

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.

Real UK Cost Data
Verified Reliability
Expert Insights
Updated for 2025

REPLACEMENT COSTS

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).

→ Compare P300e engine prices from UK specialists

COMMON PROBLEMS

Common Problems

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REPAIR OR REPLACE

Discovery Sport P300e - Repair, Buy, or Replace?

Every engine has a story. Make the right call with clear data, real-world costs, and honest guidance from UK specialists.

Can It Be Repaired?

ProblemRepairable?Typical CostWhen It Makes SenseWater pump failure✅ Yes£450–£800Catch it early - straightforward replacementCoolant leak (hoses/thermostat)✅ Yes£200–£450Simple parts; cheap to fixBattery degradation (range loss)⚠️ Sometimes£6,000–£10,000Only if under warranty or vehicle has high valueCharging system faults✅ Yes£800–£2,000Worth it on a £20k+ vehicleHead gasket (from severe overheating)✅ Yes£1,500–£3,000Worth it on a £20k+ Discovery Sport if the rest is soundSevere overheating with block damage❌ Usually NoEngine replacementReplacement cost justified only on high-value examples

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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BUYING CHECKLIST

Buying Checklist

Before you buy a used Land Rover Discovery Sport P300e (or before you commit to an engine replacement), check these:

1

Cold Start

Listen for smooth idle; any hesitation or rough running points to injector or fuel pump issues

2

Service History

Including coolant system inspections and hybrid service records - see the map above

3

Coolant Level

Check reservoir when cold; any low or loss is a red flag

4

Water Pump

Listen for whining noise; check for coolant residue near the pump area

5

Electric Range

Compare displayed range against official figures; any major drop indicates battery degradation

6

Charging System

Test both AC and DC charging; any errors or slow charging may indicate faults

7

Battery Health

Request a battery health certificate (8-year warranty should guarantee 70% capacity)

8

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 pitfalls.

ENGINE CODES

Engine Codes

This table's rows match Section 1B's Era Map exactly.

AJ20P3 + e-motor (1.5L Ingenium PHEV)

AJ20P3 + e-motor (1.5L Ingenium PHEV)

Years2020–present
Power296 bhp combined (197 bhp ICE + 80kW motor)
2025 Enquiries148 [EM-VERIFIED]
Avg. Recon Cost£4,500–£6,500 [PLACEHOLDER]

Technical Specs

AJ20P3
Displacement1,499cc (1.5L)
Cylinders3-cylinder inline, aluminium block
Compression Ratio10.5:1
Fuel SystemDirect injection, turbocharged and intercooled
Electric Motor80kW (109 bhp) permanent magnet synchronous motor
Battery15kWh lithium-ion
Combined Torque540 Nm

→ Compare P300e engine prices for your Discovery Sport

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MARKET INTELLIGENCE

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

South East19%
Midlands16%
South West14%

PATTERN DATA

Regional Demand Breakdown

19%South East
16%Midlands

FAQ

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.

TRUST & PROOF

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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