What are the signs of timing chain failure in a Range Rover Sport D250-

The most common early warning sign is a distinct rattling or ticking noise from the engine bay, particularly during cold starts.

Range Rover Sport D250 SPECIALISTS

Range Rover Sport D250 Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Range Rover Sport D250 engine specialists. Compare prices on reconditioned, rebuilt and used AJ300D 3.0L MHEV diesel engines to find the best supply and fit solution for your L461 Range Rover Sport.

Supply & Fit Available

12-Month Warranty

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Range Rover Sport D250 Engine

from£6,500 to £9,500...

Usedfrom £3,500
Reconditionedfrom £5,500
Common codesAJ300D

Land Rover range-rover-sport D250 Used Engine — AJ300D

Land Rover range-rover-sportUsed Engine — AJ300D

Land Rover range-rover-sport D250 Reconditioned Engine — AJ300D

Land Rover range-rover-sportReconditioned Engine — AJ300D

Land Rover range-rover-sport D250 Rebuilt Engine — AJ300D

Land Rover range-rover-sportRebuilt Engine — AJ300D

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 Network

How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Range Rover Sport D250 Engine History & Specs at a Glance

When the D250 variant launched in the L461 Range Rover Sport, it introduced the latest-generation 3.0-litre Ingenium straight-six diesel with 48V mild-hybrid (MHEV) technology, delivering refined performance and improved emissions compliance for the modern luxury SUV market.

2022
AJ300D (3.0L Ingenium Diesel MHEV), 250hp, introduced with the all-new L461 Range Rover Sport lineup, featuring a 48V belt-integrated starter generator (BiSG) for enhanced stop-start refinement and torque assistance.

Every engine fitted to the Range Rover Sport D250 is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Range Rover Sport D250 Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

AJ300D — 3.0L Diesel MHEV (2022-present)

Power Output: 250hp (249hp)
Years Fitted: 2022-present

Can’t find your exact engine code?-> Get quotes for AJ300D Range Rover Sport D250 engine replacement

-> Get quotes for AJ300D Range Rover Sport D250 engine replacement

Common failure points and repair options

Timing Chain Tensioner Wear

Affected: Range Rover Sport D250 (AJ300D, 2022-present)
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.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative (Chain Kit Replacement)	£2,800-£4,500	£1,500-£2,800
Full Replacement - rebuilt/reconditioned engine	£9,500-£14,000	£6,500-£9,500 [ESTIMATED - using 306DT 3.0L TDV6 as proxy]

Our recommendation

For the Range Rover Sport D250, ensuring regular motorway driving to complete DPF regeneration cycles is the best preventative measure. However, if you are experiencing timing chain rattle or have suffered catastrophic internal failure, a reconditioned AJ300D engine with upgraded tensioners is the safest long-term solution to preserve performance and value.

DPF Regeneration & EGR Issues

Affected: Range Rover Sport D250 (AJ300D, 2022-present)
Typical failure mileage: 40,000-100,000 miles

Root cause

Frequent short journeys prevent complete DPF regeneration cycles, causing soot buildup and potential EGR valve carbon fouling, leading to reduced performance and warning lights.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative (DPF Clean + EGR Service)	£600-£1,200	£350-£700
Full Replacement - rebuilt/reconditioned engine	£9,500-£14,000	£6,500-£9,500 [ESTIMATED - using 306DT 3.0L TDV6 as proxy]

Our recommendation

-> Compare rebuilt AJ300D Range Rover Sport D250 engine prices

Don't Let Engine Failure Write Off Your Range Rover Sport D250

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 Range Rover Sport deserves.

Compare Range Rover Sport D250 Engine Replacement Prices Now ->

FAQ

Range Rover Sport D250 Engine ReplacementFrequently Asked Questions

Everything Range Rover Sport D250 owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A reconditioned Range Rover Sport D250 (AJ300D) engine typically costs between £5,500 and £8,000 for supply only, with fully rebuilt options ranging from £6,500 to £9,500.

Prices vary based on the supplier and whether you choose supply-only or supply-and-fit.
Used engines are cheaper (£3,500-£5,500) but carry higher risk without a comprehensive warranty.

-> Compare Range Rover Sport D250 engine prices today.

Yes, given the strong retained value of the L461 Range Rover Sport D250 (typically £45,000-£75,000+), a rebuild is highly financially viable.

A reconditioned AJ300D 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.

-> Check if your Range Rover Sport D250 is a candidate for replacement.

A professional supply and fit service for the Range Rover Sport D250 typically takes 3 to 5 days due to the complexity of the L461 chassis and MHEV electrical architecture.

This includes careful removal, thorough engine bay cleaning, and precise installation of the replacement AJ300D unit.
Comprehensive post-fit testing and ECU calibration are completed before handover.

-> Book a Range Rover Sport D250 supply and fit appointment.

Yes, the most effective preventative measure is ensuring regular motorway driving (at least 30 minutes at 60+ mph every 100-200 miles) to allow complete DPF regeneration cycles.

Avoiding repeated short, cold journeys also helps prevent carbon buildup in the EGR system.
Many specialists recommend applying the latest ECU software updates to optimise regeneration behaviour.

-> Speak to a Range Rover Sport D250 specialist about preventative maintenance.

Why Choose Us

Compare Range Rover Sport D250 Engine Prices Today

Comparing quotes is completely free and carries no obligation. By entering your registration, you ensure that the quotes you receive are specifically tailored to your exact Range Rover Sport D250 and its AJ300D engine code, connecting you directly with vetted UK specialists who understand high-specification L461 Range Rover Sport intricacies.

100+100+ Range Rover Sport D250 engines supplied through our network

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Compare quotes from trusted UK Range Rover Sport D250 engine specialists with warranty-backed rebuilt, reconditioned and used options nationwide.