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

Land Rover Discovery Si6Engine Rebuild— From £2,200

Specialist Land Rover Discovery Si6 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

Petrol V6 Specialists

GB
Land Rover

Your Land Rover Discovery Si6 Engine

Land Rover AMG GT 53 TwinPower Turbo engine

Vehicle

Land Rover Discovery Si6

Model

Discovery

Variant

Si6

Fuel

Petrol

Engine

AJ-V6

Capacity

3.0L V6

Generations

D3/L319 (2004–2009) · D4/L319 facelift (2009–2016)

Rebuild From

£2,200

?

Not sure which engine you have?

The Discovery Si6 uses the AJ-V6 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 Si6Engine Rebuild Price

Starting From £2,200

AJ-V6 engine

Engine Code

AJ-V6

Rebuild From

£2,200

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 Si6 Oil Leaks & Coolant System Wear (AJ-V6 I6)

The AJ-V6 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 AJ-V6 V6. We replace timing chains, bearings, water pump and gaskets as standard on every AJ-V6 rebuild.

Because the Discovery Si6 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 AJ-V6 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 Si6ENGINE OPTIONS

Every Discovery Si6 is different. That's why we offer the right solution for your engine, your car and your budget.

01MOST POPULAR

REBUILDING YOUR DISCOVERY SI6 ENGINE

Most engine suppliers sell you a used engine of unknown history and hope it matches. We rebuild the engine your Discovery Si6 already has instead — strip it down, pressure-test it, and replace every worn or damaged component (timing chains, bearings, water pump, 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 owners choose, and it's the one we'd recommend for most situations.

02

RECONDITIONED DISCOVERY SI6 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 SI6 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 SI6 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.

05

REPLACEMENT DISCOVERY SI6 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 SI6 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 AJ-V6 and talk you through the best solution for your Discovery Si6, honestly.

Ask About Your Options

OUR WORKSHOP

RECOVERY COLLECTION01

RECOVERY COLLECTION

AJ-V6 ENGINE STRIPPED FOR REBUILD INSPECTION02

AJ-V6 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 Si6 rebuild looks like.

Land Rover Discovery Si6 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 Si6.

10Road Test

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

WHAT MERCEDES Discovery Si6 OWNERS SAY

Daniel R.

Brilliant service from start to finish. My Discovery Si6 runs smoother than ever. Honest advice, clear pricing and the team know their stuff.

Land Rover Discovery Si6 Engine Rebuild

Mark T.

They rebuilt my AJ-V6 with all the updated parts. Smooth process and great communication throughout.

Land Rover Discovery Si6 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 Si6 Engine Rebuild

Steve B.

Saved me thousands compared to a dealer quote. Fantastic workmanship and my Discovery Si6 is running perfectly.

Land Rover Discovery Si6 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 Si6 Engine Rebuild

James K.

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

Land Rover Discovery Si6 Engine Rebuild

WE COVER YOUREXACT VEHICLE

Enter your registration below and we'll confirm your Land Rover Discovery Si6 has the AJ-V6, along with an exact rebuild price.

GB
FastAccurateNo Guesswork

WHY MERCEDES Discovery Si6 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 Si6

Land Rover Discovery Si6

RECOVERY

Land Rover Discovery Si6

Land Rover Discovery Si6

DIAGNOSTICS

Land Rover Discovery Si6

Land Rover Discovery Si6

STRIPPED ENGINE

Land Rover Discovery Si6

Land Rover Discovery Si6

TIMING CHAIN REPLACEMENT

Land Rover Discovery Si6

Land Rover Discovery Si6

IN FOR REBUILD

Land Rover Discovery Si6

Land Rover Discovery Si6

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 Si6 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 Si6 ENGINE

Land Rover AMG GT 53 engine and sedan

The Discovery Si6 is the petrol V6 variant of the Discovery 3 and Discovery 4 ranges, produced from 2004 to 2016. It uses the AJ-V6 — a 3.0-litre petrol V6 that was also used across other Jaguar Land Rover products of the same era. The Si6 badge was primarily used to differentiate it from the diesel TDV6 and SDV6 variants in the Discovery line-up. The engine remained consistent throughout both the D3 and D4 generations, with the same fundamental AJ-V6 design powering both.

We continue to rebuild and replace AJ-V6 engines for every Discovery Si6 on the road.

Land Rover Discovery Si6 ENGINE CODES

A 3.0-litre V6 petrol fitted to the Discovery Si6 from 2004 to 2016, across both the D3 and D4 generations. No specific known issue confirmed for this application — it's considered a generally reliable petrol V6. Check Your AJ-V6 Discovery Si6 → [link to quote form]

Check Your AJ-V6 Discovery Si6

Land Rover Discovery Si6 ENGINE COMPATIBILITY

Land Rover touring in workshop

Because the Discovery Si6 uses the same AJ-V6 petrol engine across both the D3 and D4 generations, compatibility is straightforward — the same engine family was fitted throughout the entire 2004–2016 production run. Before we quote or supply anything, we confirm:

Your exact engine code (AJ-V6) via registration or VIN

Your generation (D3/L319 or D4/L319 facelift)

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 Si6 APPLICATIONS BY GENERATION

Generation

Chassis

Years

Engine Code

Fuel

D3

D3

L319

2004–2009

AJ-V6

Petrol

D4

D4

L319 facelift

2009–2016

AJ-V6

Petrol

Land Rover Discovery Si6 ENGINES BY YEAR

Land Rover Discovery Si6 has used the AJ-V6 throughout. If you're unsure of your exact spec, we'll confirm it before you book.

Year

Generation

Engine Code

Fuel

Service

2004

D3/L319

AJ-V6

Petrol

Rebuild / Replacement

2005

D3/L319

AJ-V6

Petrol

Rebuild / Replacement

2006

D3/L319

AJ-V6

Petrol

Rebuild / Replacement

2007

D3/L319

AJ-V6

Petrol

Rebuild / Replacement

2008

D3/L319

AJ-V6

Petrol

Rebuild / Replacement

2009

D3/L319

AJ-V6

Petrol

Rebuild / Replacement

2010

D4/L319 facelift

AJ-V6

Petrol

Rebuild / Replacement

2011

D4/L319 facelift

AJ-V6

Petrol

Rebuild / Replacement

2012

D4/L319 facelift

AJ-V6

Petrol

Rebuild / Replacement

2013

D4/L319 facelift

AJ-V6

Petrol

Rebuild / Replacement

2014

D4/L319 facelift

AJ-V6

Petrol

Rebuild / Replacement

2015

D4/L319 facelift

AJ-V6

Petrol

Rebuild / Replacement

2016

D4/L319 facelift

AJ-V6

Petrol

Rebuild / Replacement

i

The AJ-V6 has been fitted to every Discovery Si6 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 Si6 MODEL YEAR:

Land Rover Discovery Si6
2004 Engine Rebuild

Land Rover Discovery Si6
2005 Engine Rebuild

Land Rover Discovery Si6
2006 Engine Rebuild

Land Rover Discovery Si6
2007 Engine Rebuild

Land Rover Discovery Si6
2008 Engine Rebuild

Land Rover Discovery Si6
2009 Engine Rebuild

Land Rover Discovery Si6
2010 Engine Rebuild

Land Rover Discovery Si6
2011 Engine Rebuild

Land Rover Discovery Si6
2012 Engine Rebuild

Land Rover Discovery Si6
2013 Engine Rebuild

Land Rover Discovery Si6
2014 Engine Rebuild

Land Rover Discovery Si6
2015 Engine Rebuild

Land Rover Discovery Si6
2016 Engine Rebuild

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

Land Rover Discovery Si6 ENGINE COSTS

A Land Rover Discovery Si6 engine rebuild starts from

£2,200

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 Si6 ENGINE SIZES

Land Rover Discovery Si6 3.0 Litre Engine (AJ-V6, I6)

MERCEDES Discovery Si6 FUEL TYPES

Land Rover Discovery Si6 Petrol Mild Hybrid Engine Rebuilds

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View All Land Rover Engines

Most Land Rover Discovery Si6 engine rebuilds are completed within 3-5 working days.

Nationwide recovery and collection available for all Land Rover Discovery Si6 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 Si6 FIXED-PRICE QUOTE

Most quotes returned within 30 minutes during working hours.