Jaguar XE P300 Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Jaguar XE P300 engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most reliable and cost-effective replacement for your high-output 2.0L petrol vehicle.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £3,600 to £5,800
Used from £1,500 · Reconditioned from £3,200 · Common codes: AJ20P4
From £1,500
Tested, bare/short engine
From £3,200
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Jaguar XE P300 specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Jaguar XE P300 Replacement Engineto Finding the Best Jaguar XE P300 Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryJaguar XE P300 - Engine History & Specs at a Glance
When the Jaguar XE P300 launched, it served as the high-output petrol flagship of the compact executive range, bridging the gap between the standard P250 and the supercharged XE S. Its powertrain evolved with the 2019 facelift to incorporate the refined AJ20P4 Ingenium engine, delivering 300hp with improved thermal management.
Variant HistoryJaguar XE P300 - Engine History & Specs at a Glance
When the Jaguar XE P300 launched, it served as the high-output petrol flagship of the compact executive range, bridging the gap between the standard P250 and the supercharged XE S. Its powertrain evolved with the 2019 facelift to incorporate the refined AJ20P4 Ingenium engine, delivering 300hp with improved thermal management.
Jaguar XE P300
Fuel TypePetrol (MHEV from 2020)
Engine Size Range2.0L
Power Output Range300hpEngine History Timeline
AJ20P4 2.0L High-Output Petrol introduced (300hp) replacing earlier lower-output variants in the P300 trim, featuring a revised valve train and upgraded thermal management to address early-generation tensioner concerns.
Integration of 48V Mild Hybrid Electric Vehicle (MHEV) technology alongside the AJ20P4 enhancing stop-start smoothness and providing torque fill, though the core combustion engine architecture remained unchanged.
Final production year for the X760 generation Jaguar XE P300 cementing the AJ20P4 as the definitive high-performance four-cylinder unit for this model before the range's discontinuation.
Key Specs Snapshot
Fuel TypePetrol (MHEV from 2020)Engine Size Range2.0LPower Output Range300hpYears Produced2019-2024Every engine fitted to the Jaguar XE P300 is covered below, with UK rebuilt pricing and known failure points.
Jaguar XE P300 Engine Codes - Specifications & Replacement CostJaguar XE P300 Engine Codes - Specifications & Replacement Cost
2.0L Petrol (2019-2024)
Power Output300hpYears Fitted2019-2024
Compatible Trim Levels
- P300
- P300 AWD
- P300 R-Dynamic
- P300 R-Dynamic AWD
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,500-£2,800 [ESTIMATED - using AJ200P/204PT family proxy]
Reconditioned
Addressed known issues, tested
£3,200-£5,000 [ESTIMATED - using AJ200P/204PT family proxy]
Rebuilt
Full teardown, upgraded internals
£3,600-£5,800 [ESTIMATED - based on Jaguar XE P300 specific market data]
Common Failure
Cam phaser rattle on cold start and piston ring wear leading to increased oil consumption, typically observed between 70,000-110,000 miles.
The Jaguar XE P300 reliability landscape is primarily defined by the high-output AJ20P4 Ingenium petrol engine. While more robust than early diesel variants, it is susceptible to specific high-stress wear points. Rebuilt engines supplied through EnginesMarket include upgraded internal components designed to permanently address these original failure points, backed by a minimum 12-month unlimited mileage warranty.
Why the Jaguar XE P300 AJ20P4 Wears Prematurely
Affected Vehicles
Jaguar XE P300 (AJ20P4, 2019-2024)
Typical Failure Mileage
70,000 - 110,000 miles
Root Cause
Wear in the variable valve timing (VVT) cam phasers and timing chain tensioners, exacerbated by high operating temperatures and oil degradation, causing a distinct rattling noise on cold starts.
Why It Happens
Wear in the variable valve timing (VVT) cam phasers and timing chain tensioners, exacerbated by high operating temperatures and oil degradation, causing a distinct rattling noise on cold starts.
Dealer (parts + labour)
£1,800-£2,500
Specialist (parts + labour)
£1,200-£1,800
What it involves
Replacing tensioners, guides, and cam phasers before catastrophic failure occurs.
Suitability
80,000+ miles if caught early before metallic debris appears.
1 - 2 daysDealer (parts + labour)
£6,500-£9,000
Specialist (parts + labour)
£3,600-£5,800
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty.
Suitability
Recommended once metallic rattling is persistent or compression is lost.
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 Timing Component Upgrade Minor | £1,800-£2,500 | £1,200-£1,800 | Replacing tensioners, guides, and cam phasers before catastrophic failure occurs. | 80,000+ miles if caught early before metallic debris appears. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £6,500-£9,000 | £3,600-£5,800 | Supply & fit, upgraded components addressing the original failure point, 12-month warranty. | Recommended once metallic rattling is persistent or compression is lost. | 1 - 2 days |
Our Recommendation
Our Recommendation
If your Jaguar XE P300 is exhibiting early cold-start rattle but runs smoothly otherwise, a preventative timing component upgrade by a specialist is the most cost-effective first step. However, if you are experiencing significant oil consumption, loss of compression, or metallic knocking, a full rebuilt engine with upgraded internals is the only reliable long-term solution to protect your investment.
Don't Let Engine Failure Write Off Your Jaguar XE P300
Whether you are dealing with cam phaser rattle or oil consumption on your Jaguar XE P300, the financial decision between repeated dealership diagnostics and a complete engine replacement is straightforward. EnginesMarket connects you with trusted UK specialists who supply fully rebuilt engines featuring upgraded internal components that permanently address the original design flaws. Every unit comes with a minimum 12-month unlimited mileage warranty, nationwide delivery, and optional supply & fit packages, allowing you to bypass main dealer markups and return to the road with confidence.
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 Jaguar XE P300. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Jaguar XE P300 Engine ReplacementFrequently Asked Questions
Question 1How much does a Jaguar XE P300 engine replacement cost-
A rebuilt Jaguar XE P300 engine typically costs between £3,600 and £5,800 for supply only, while a reconditioned unit ranges from £3,200 to £5,000. Used engines are available from £1,500 but carry higher risk.
- Rebuilt units include upgraded timing components to prevent future failures.
- Supply and fit packages typically add £800-£1,500 in labour and ECU coding.
Question 2What are the signs of AJ20P4 engine failure in a Jaguar XE P300-
The most common early warning signs are a distinct metallic rattling noise on cold startup and noticeable oil consumption between service intervals.
- Advanced failure may present as blue exhaust smoke, loss of power, or an illuminated check engine light for misfires.
Question 3Is it worth replacing the engine in a Jaguar XE P300-
Yes, replacing the engine is highly recommended for the XE P300, as the vehicle's current market value (£15,000-£25,000) comfortably absorbs the replacement cost.
- A rebuilt engine restores the 300hp performance and reliability that defines the P300 trim.
- Opting for a unit with post-2019 spec upgrades ensures long-term durability.
Question 4Do I need to reprogram the ECU after replacing my Jaguar XE P300 engine-
Yes, Jaguar XE P300 engine replacement requires Topix diagnostic programming to pair the new ECU with the engine immobiliser and calibration data.
- Skipping this step risks limp mode, no-start conditions, or persistent fault codes post-installation.
- Specialist workshops with Jaguar diagnostic equipment handle this process routinely, often including it in supply & fit quotes.
Question 5How long does a Jaguar XE P300 engine replacement take-
A professional supply and fit service for a Jaguar XE P300 typically takes 1 to 2 days.
- This includes the physical engine swap, fluid replacement, and mandatory Topix ECU coding and adaptation learning.
- Nationwide mobile fitting or collection services are available through our vetted specialist network.
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