Land RoverLAND ROVER GARAGELAND ROVER ENGINE SPECIALISTS
Land Rover technician rebuilding a AMG GT 53 engine block
Land Rover

Land Rover Discovery P360Engine Rebuild— From £2,800

Specialist Land Rover Discovery P360 engine rebuilds and replacements, with registration-based engine matching, nationwide recovery and a 12-month unlimited-mileage warranty

Rated Land Rover Engine Specialists 1,800+ Engines Rebuilt

Specialist technicians with 10-15 years of experience

12 Month Unlimited-Mileage Warranty

Nationwide Recovery

Free Engine Matching by Registration

Ingenium AJ300P Specialists

GB
Land Rover

Your Land Rover Discovery P360 Engine

Land Rover AMG GT 53 TwinPower Turbo engine

Vehicle

Land Rover Discovery P360

Model

Discovery

Variant

P360

Fuel

Petrol

Engine

AJ300P

Capacity

3.0L I6

Generations

D5/L462 (2017–present)

Rebuild From

£2,800

?

Not sure which engine you have?

The Discovery P360 uses the AJ300P 3.0-litre inline-six mild-hybrid engine — enter your registration below and we'll confirm your exact spec before you get a quote.

GB

DVLA & VIN verified

100% secure & private

No obligation quote

Land Rover Discovery P360Engine Rebuild Price

Starting From £2,800

AJ300P engine

Engine Code

AJ300P

Rebuild From

£2,800

Generation

Exact price depends on condition and parts required — submit your reg for a fixed-price quote.

Get Your Fixed-Price Quote

Land Rover Discovery P360 Oil Leaks & Coolant System Wear (AJ300P I6)

The AJ300P is a sophisticated 3.0-litre inline-six with an integrated starter-generator and electric auxiliary compressor — a more modern and efficient design than the older AJ300P V6. We replace timing chains, bearings, water pump and gaskets as standard on every AJ300P rebuild.

Because the Discovery P360 uses a completely different engine family from the V8 M178 fitted to the Discovery 63 and GT 63 S, parts and rebuild specifications don't cross over between them.

Source: Established AJ300P specialist pattern — timing chain, bearing and gasket wear across integrated-starter-generator inline-six units.

Land Rover AMG GT 53 engine block

Land Rover Discovery P360ENGINE OPTIONS

Every Discovery P360 is different. That's why we offer the right solution for your engine, your car and your budget.

01MOST POPULAR

REBUILDING YOUR DISCOVERY P360 ENGINE

Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your Discovery P360 already has instead — strip it down, pressure-test it, and replace every worn or damaged component (timing chains, bearings, gaskets) with updated OEM parts. You get a near-new engine with a 12-month unlimited-mileage warranty, without the compatibility risk of an unknown used unit. This is the option most Discovery P360 owners choose, and it's the one we'd recommend for most situations.

02

RECONDITIONED DISCOVERY P360 ENGINES

"Reconditioned" is the term many owners search for when they mean the same thing as a rebuild — a full strip-down, inspection, and replacement of worn parts rather than a straight swap. If that's what you're after, our rebuild service is exactly that.

03

REFURBISHED DISCOVERY P360 ENGINES

Similarly, "refurbished" often describes the same process from a different angle — restoring your existing engine to full working condition rather than replacing it outright. Our rebuild covers this.

04

REMANUFACTURED DISCOVERY P360 ENGINES

Some owners specifically search for a "remanufactured" engine, expecting a unit rebuilt to original specification with updated components. That's consistent with what our rebuild service delivers on the AJ300P.

05

REPLACEMENT DISCOVERY P360 ENGINES

If your existing engine is beyond economical repair, we also offer full engine replacement and fitting — sourced and fitted by our team, with the same 12-month warranty.

06

USED DISCOVERY P360 ENGINES

In some cases, a matched low-mileage used engine is the right call — particularly if you need your car back on the road quickly and your existing engine's damage is extensive. We can source and fit these too, though most owners who ask about used engines end up choosing a rebuild once they understand the compatibility risk a used unit carries. Enter your reg below and we'll talk you through both options honestly.

NOT SURE WHICH OPTION IS RIGHT FOR YOU?

Enter your registration below and we'll confirm your AJ300P and talk you through the best solution for your Discovery P360, honestly.

Ask About Your Options

OUR WORKSHOP

RECOVERY COLLECTION01

RECOVERY COLLECTION

AJ300P ENGINE STRIPPED FOR REBUILD INSPECTION02

AJ300P ENGINE STRIPPED FOR REBUILD INSPECTION

VALVE COVERS & COOLANT COMPONENT WORK03

VALVE COVERS & COOLANT COMPONENT WORK

TECHNICIANS AT WORK04

TECHNICIANS AT WORK

ENGINE TESTING (RIG)05

ENGINE TESTING (RIG)

COMPLETED & READY FOR REFIT06

COMPLETED & READY FOR REFIT

Real photos from our workshop — not stock imagery. This is what a genuine Land Rover Discovery P360 rebuild looks like.

Land Rover Discovery P360 ENGINE REBUILD PROCESS

1Diagnosis

We confirm your exact engine code and assess the damage.

2Removal

Your engine is removed and brought into our workshop.

3Strip-Down

Every component is removed for individual inspection.

4Inspection

Crankshaft, cylinder head, timing chain, bearings, water pump and gaskets are all checked.

5Machine Work

Any machining required is carried out to OEM tolerances.

6Component Replacement

Worn or damaged parts are replaced with updated OEM components.

7Reassembly

Your engine is rebuilt to original specification.

8Testing

Every rebuild is pressure-tested before refit.

9Refit

Your engine goes back into your Discovery P360.

10Road Test

A full road test confirms everything's right before we hand your car back.

WHAT MERCEDES Discovery P360 OWNERS SAY

Daniel R.

Brilliant service from start to finish. My Discovery P360 runs smoother than ever. Honest advice, clear pricing and the team know their stuff.

Land Rover Discovery P360 Engine Rebuild

Mark T.

They rebuilt my AJ300P with all the updated parts. Smooth process and great communication throughout.

Land Rover Discovery P360 Engine Rebuild

Ryan P.

Top lads, top job. Picked up and dropped off, engine rebuilt to an extremely high standard. 100% recommend.

Land Rover Discovery P360 Engine Rebuild

Steve B.

Saved me thousands compared to a dealer quote. Fantastic workmanship and my Discovery P360 is running perfectly.

Land Rover Discovery P360 Engine Rebuild

Tom H.

From quote to collection couldn't fault them. Engine looks brand new inside. Warranty gives great peace of mind.

Land Rover Discovery P360 Engine Rebuild

James K.

Professional, reliable and fairly priced. Sorted properly and kept me updated throughout.

Land Rover Discovery P360 Engine Rebuild

WE COVER YOUREXACT VEHICLE

Enter your registration below and we'll confirm your Land Rover Discovery P360 has the AJ300P, along with an exact rebuild price.

GB
FastAccurateNo Guesswork

WHY MERCEDES Discovery P360 OWNERS CHOOSE US

Engine matched using VIN or registration number

Genuine specialist workshop — not a broker

Specialist technicians with 10-15 years of experience

We don't swap your engine for an unknown used unit

Nationwide recovery, workshop rebuild

12 month unlimited-mileage warranty

All engine ancillaries serviced as part of the rebuild

Trade & public enquiries welcome

Dedicated advisor from quote to fit

OUR MOST RECENTMERCEDES RECOVERIES & REBUILDS

Real vehicles brought into our workshop. Open bonnets, stripped blocks, and cars ready for collection — this is what genuine engine work looks like.

Land Rover Discovery P360

Land Rover Discovery P360

RECOVERY

Land Rover Discovery P360

Land Rover Discovery P360

DIAGNOSTICS

Land Rover Discovery P360

Land Rover Discovery P360

STRIPPED ENGINE

Land Rover Discovery P360

Land Rover Discovery P360

TIMING CHAIN REPLACEMENT

Land Rover Discovery P360

Land Rover Discovery P360

IN FOR REBUILD

Land Rover Discovery P360

Land Rover Discovery P360

REBUILD IN PROGRESS

HOW IT WORKS

1

SEND YOURREGISTRATION

2

RECEIVE YOURFIXED-PRICE QUOTE

3

WE RECOVERYOUR CAR

4

REBUILD &REFIT

Most Discovery models are recovered within a few hours of booking. Most rebuilds are completed within 3-5 working days.

Workshop slots fill up fast — book your recovery today.

Land Rover engines on workshop pallets

LOOKING FOR A USED ORREPLACEMENT ENGINEINSTEAD?

We supply low-mileage, VIN-matched used units too, and offer full replacement and fitting. However, most Discovery P360 owners choose a rebuild once they realise it removes compatibility risk and works out more cost-effective over the life of the car.

Enter your reg below — we'll show you every option, honestly.

Ask About Used Engine Options

ABOUT THE Land Rover Discovery P360 ENGINE

Land Rover AMG GT 53 engine and sedan

The Discovery P360 is part of the D5/L462 generation, introduced in 2017 and still in production today. It uses the Ingenium AJ300P — a 3.0-litre inline-six petrol engine with mild-hybrid assistance, positioned as the higher-output petrol option in the Discovery range alongside the P400 and P400e. The AJ300P is a modern, sophisticated unit, and as with any complex modern engine, regular maintenance and early attention to any running issues make a significant difference to long-term reliability.

We continue to rebuild and replace AJ300P engines for every Discovery P360 on the road.

Land Rover Discovery P360 ENGINE CODES

A 3.0-litre inline-six petrol fitted to the Discovery P360 from 2017 to present (D5/L462). Part of the Ingenium family, the AJ300P is a modern petrol unit with mild-hybrid technology. We replace timing chains, bearings and gaskets as standard on every AJ300P rebuild. Check Your AJ300P Discovery P360 → [link to quote form]

Check Your AJ300P Discovery P360

Land Rover Discovery P360 ENGINE COMPATIBILITY

Land Rover touring in workshop

The Discovery P360's AJ300P is a specific tune of the Ingenium 3.0-litre petrol six — different from the diesel units in the Discovery range and distinct from the higher-output P400 variant. Fitting the wrong replacement or assuming parts from another variant will fit risks a compatibility problem that's expensive to unpick. Before we quote or supply anything, we confirm:

Your exact engine code (AJ300P) via registration or VIN

Your generation (D5/L462)

Drivetrain and ancillary specification

Any electronics or ECU considerations specific to your exact build

This is why we always start with your registration rather than a generic Discovery quote — it protects you from paying for parts that don't fit your actual car.

Land Rover Discovery P360 APPLICATIONS BY GENERATION

Generation

Chassis

Years

Engine Code

Fuel

D5

D5

L462

2017–present

AJ300P

Petrol

Land Rover Discovery P360 ENGINES BY YEAR

Land Rover Discovery P360 has used the AJ300P throughout. If you're unsure of your exact spec, we'll confirm it before you book.

Year

Generation

Engine Code

Fuel

Service

2017

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2018

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2019

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2020

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2021

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2022

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2023

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2024

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2025

D5/L462

AJ300P

Petrol

Rebuild / Replacement

2026

D5/L462

AJ300P

Petrol

Rebuild / Replacement

i

The AJ300P has been fitted to every Discovery P360 since launch — if your registration year isn't listed above, get in touch and we'll confirm availability directly against your reg.

WE COVER EVERY Land Rover Discovery P360 MODEL YEAR:

Land Rover Discovery P360
2017 Engine Rebuild

Land Rover Discovery P360
2018 Engine Rebuild

Land Rover Discovery P360
2019 Engine Rebuild

Land Rover Discovery P360
2020 Engine Rebuild

Land Rover Discovery P360
2021 Engine Rebuild

Land Rover Discovery P360
2022 Engine Rebuild

Land Rover Discovery P360
2023 Engine Rebuild

Land Rover Discovery P360
2024 Engine Rebuild

Land Rover Discovery P360
2025 Engine Rebuild

Land Rover Discovery P360
2026 Engine Rebuild

If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg.

Land Rover Discovery P360 ENGINE COSTS

A Land Rover Discovery P360 engine rebuild starts from

£2,800

A full replacement engine and fitting service is also available. Exact pricing depends on the condition of your existing engine and the parts required — submit your registration for a fixed-price quote within 30 minutes.

Land Rover AMG GT 53 engine

12 MONTH

UNLIMITED-MILEAGE

WARRANTY

MERCEDES Discovery P360 ENGINE SIZES

Land Rover Discovery P360 3.0 Litre Engine (AJ300P, I6)

MERCEDES Discovery P360 FUEL TYPES

Land Rover Discovery P360 Petrol Mild Hybrid Engine Rebuilds

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Most Land Rover Discovery P360 engine rebuilds are completed within 3-5 working days.

Nationwide recovery and collection available for all Land Rover Discovery P360 models.

Land Rover AMG GT recovery and collection

FREQUENTLY ASKED QUESTIONS

Land Rover AMG GT in a dark showroom

Land RoverGET YOUR FREE MERCEDES Discovery P360 FIXED-PRICE QUOTE

Most quotes returned within 30 minutes during working hours.