Land Rover 3.0 Diesel Engine Rebuilds Engineered in Grays, Essex

Land Rover 3.0 Diesel Engine Rebuilds Engineered in Grays, Essex

Precision rebuilds and reconditioned replacements for the 3.0 TDV6, SDV6 and D300 straight six, protecting Discovery, Range Rover and Defender owners from repeat failures.

TDV6 and SDV6 Experts
306DT Stock Available
Warranty on Every Engine
Root-Cause Diagnostics
Crank and Bearing Specialists
Collection Across Essex
Delivery Throughout the UK
Every Unit Bench-Run Before Despatch
Nationwide Recovery & Return
Twelve Months of Cover
Diesel & Petrol Specialists
Every Unit Bench-Run Before Despatch
Nationwide Recovery & Return
Twelve Months of Cover
Diesel & Petrol Specialists

CLIENT EXPERIENCES

Discovery and Range Rover Owners Who Came to Us After the Worst Happened

Honest accounts from drivers whose TDV6, SDV6 and D300 engines were rescued, rebuilt or replaced at our Essex facility.

★★★★★

“My Discovery 4 dropped oil pressure on the A13 and started knocking within a mile. Strip-down confirmed spun crank bearings from oil pump failure. The rebuilt engine has now covered 15,000 trouble-free miles.”

P

Paul D.

Discovery 4

★★★★★

“After a dealer quoted eye-watering money for a new SDV6, these guys rebuilt mine with an uprated oil pump and new chains for a fraction of it. Communication was excellent from strip-down to collection.”

R

Rachel S.

Range Rover Sport

★★★★★

“Bought a reconditioned 306DT as a bare unit for my own fitment. Arrived on a pallet exactly when promised, fully tested with paperwork to prove it, and started first turn of the key.”

S

Steve B.

Independent Garage Owner

Land Rover 3.0L Engine Codes to Help You Find Your Vehicle

MakeModelEngine CodeActual CCPower KW / HPYear Range
Land RoverDiscovery 4306DT2993155 kW / 211 hp2009–2016Get Quote
Land RoverDiscovery 4306PS2995180 kW / 245 hp2009–2016Get Quote
Land RoverDiscovery 4306PS2995188 kW / 255 hp2011–2016Get Quote
Land RoverDiscovery 430HD0D2995250 kW / 340 hp2013–2016Get Quote
Land RoverDiscovery 5306DT2993190 kW / 258 hp2017–presentGet Quote
Land RoverDiscovery 5306PS2995250 kW / 340 hp2017–presentGet Quote

WE REBUILD AGAINST THE FAILURENOT JUST THE SYMPTOM

Knowing precisely how the 3.0 diesel dies is what separates a lasting rebuild from a temporary one, and we have documented every mode.

Oil Pump Failure and Starved Bearings

  • The V6's known killer: the oil pump loses drive or its casing fails, pressure collapses, and crankshaft bearings wear or spin within minutes. Every rebuild receives a new, inspected pump assembly.

Stretched Chains and Cracked Cranks

  • High-mileage SDV6 units suffer timing chain stretch, while heavily loaded examples can crack the crankshaft itself. We measure, crack-test and renew both areas before certifying any engine.

FORENSIC-LEVEL 306DT AND D300 ENGINE REBUILDING

We machine-strip your V6 or straight six, crack-test the block and crankshaft, then rebuild with new bearings, oil pump, chain kits and gaskets, eliminating the oil starvation weakness that destroyed the original unit.

TESTED REPLACEMENT 3.0 DIESEL ENGINES IN STOCK

Where a crankshaft has snapped or bearing debris has circulated through the galleries, replacement beats repair. We supply fully reconditioned 306DT and D300 engines, available as bare units shipped anywhere in the UK, or supplied and fitted at our Grays workshop with warranty documentation included.

Stop Guessing. Get It Inspected.

Low oil pressure warnings on a 3.0 diesel demand immediate expert attention.

engine
3.0 LAND ROVER SUPPORT

Understanding Why the TDV6 Bottom End Fails

The failure sequence is well documented. The oil pump, whether through casing failure, worn drive or a loose pick-up, stops delivering full pressure. Crankshaft bearings then run metal-on-metal, and within a short distance the bottom end is beyond saving.

The same oil starvation vulnerability runs right back through the engine family to the 2.7 TDV6 fitted to the Discovery 3, which is why so many owners of both generations reach us with identical symptoms.

Warning signs include low pressure warnings at idle, a deep knock under load and glitter in the drained oil. Caught early, the engine is rebuildable; ignored, only replacement remains.

From Bare Block to Dyno-Checked Certainty

Our process leaves nothing to assumption. Blocks and crankshafts are crack-detected, journals are measured and reground where needed, and oilways are ultrasonically cleaned to remove every trace of bearing debris.

Assembly uses new bearings, a fresh oil pump, complete timing chain kits and genuine gasket sets, with each engine run and pressure-verified before release.

The workshop also covers diagnostics, turbo replacement, head gaskets, timing chain work, DPF replacement, gearbox and clutch jobs, engine swaps and major servicing, complete care for your Land Rover in one Essex location.

engine
3.0 DIESEL REBUILD WORK

COMMON ENGINE QUESTIONS

Straight Answers, No Jargon

Both are versions of the 306DT V6. The TDV6 is the standard-output engine, while the SDV6 uses twin turbochargers for higher power. Internally they share the same architecture and the same known weaknesses.

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VISIT OUR WORKSHOP

One workshop, easy to reach from the A13, M25, and Dartford Crossing.

RR Engine Works

Specialist Garage

Unit 1 Hedley Ave, Grays, Essex RM20 4EL

Opening Hours

Monday – Friday: 9:00 AM – 6:00 PM

Saturday: 7:00 AM – 2:00 PM

Sunday: Closed

Contact Details

[email protected]
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