By Kylie White 
The Range Rover Sport 3.0 SDV6 engine is one of the most widely fitted diesel units in the L494-generation Range Rover Sport, prized for its strong low-end torque and relatively efficient running costs compared with the larger V8 diesel option. As one of the most popular Range Rover Sport engine choices in the UK, understanding its engine code, specifications, and known weak points is essential before facing any engine replacement decision. At Engine Solutions in Grays, UK, we supply and fit every Range Rover engine variant fitted to the Sport, and this guide breaks down the SDV6 in detail, covering specifications, common faults, and costs, all backed by no upfront charges and no deposit required.
Overview: The Range Rover Sport 3.0 SDV6 Engine
Introduced with the second-generation Range Rover Sport in 2013, the Range Rover Sport 3.0 SDV6 engine replaced the earlier TDV6 as the volume diesel choice across the range. Badged simply SDV6 in standard tune and SDV6 HSE Dynamic in its higher-output form, the engine uses a single variable-geometry turbocharger to deliver strong torque from low engine speeds, well suited to towing and long-distance cruising. It remained in production alongside newer Ingenium units until the arrival of the mild-hybrid D300 diesel, making it one of the most commonly encountered engines at specialists carrying out engine rebuild and replacement work today.
Engine Code and Output Tunes
The Range Rover Sport 3.0 SDV6 carries the engine code 306DT, part of Jaguar Land Rover’s long-serving diesel V6 family also used across other Range Rover models. In standard tune, the SDV6 produces around 258 bhp with 600 Nm of torque, while the higher-output SDV6 HSE Dynamic tune raises this to around 306 bhp with 700 Nm from the same block. Both tunes share the same core internals, with the higher output achieved through remapped engine management and turbo calibration rather than any major mechanical difference between the two versions.
Range Rover Sport 3.0 SDV6 Engine Specifications
The 306DT uses a single variable-geometry turbocharger paired with common rail direct injection for efficient combustion across the rev range. The block and cylinder head are constructed from aluminium to help offset the weight of the full-size Range Rover Sport platform. The engine pairs exclusively with a ZF eight-speed automatic transmission and permanent all-wheel drive across every Range Rover Sport variant it was fitted to. Cooling is handled by a dedicated intercooler and a robust radiator setup designed to manage sustained towing loads without overheating on longer journeys.
Performance and Everyday Driving Characteristics
The SDV6’s strong low-end torque makes it feel effortless around town and confident when towing, with the standard tune reaching 60mph in around 7.2 seconds and the HSE Dynamic tune closer to 6.7 seconds. Fuel economy is a genuine strength compared with the larger SDV8 diesel or supercharged petrol V8, making the SDV6 the preferred choice for owners covering higher annual mileage. Refinement is good for a diesel of this size, though the higher-output tune produces a firmer, more noticeable engine note under hard acceleration than the standard SDV6 setup.
Common SDV6 Engine Problems and Solutions
The 306DT SDV6 is known for rear-mounted timing chain wear, more labour-intensive to access than older front-chain designs, so early replacement keeps repair costs manageable. EGR valve and cooler clogging is common, causing rough idling and limp mode, usually resolved with a thorough clean or replacement part. Injector seal leaks can develop on higher-mileage examples, along with occasional turbo actuator wear affecting boost pressure. Catching any of these issues early significantly reduces the risk of the fault escalating into a full engine rebuild with a considerably higher bill.
Reconditioned Engines vs Used Engines for the SDV6
Whichever generation of SDV6 your Range Rover Sport uses, understanding reconditioned engines vs used engines matters once a fault has progressed too far for economical repair. A used engine removed from a donor vehicle carries the same wear history as that vehicle, a real concern around the timing chain and turbo specifically. A reconditioned JLR engine is fully stripped, rebuilt with new bearings, seals, gaskets, and often a new timing chain, giving a genuinely fresh start. For most owners, the safer long-term choice is to buy a reconditioned unit rather than risk a used engine of uncertain remaining lifespan.
Engine Replacement Costs for the SDV6
Engine replacement costs in UK garages for the 3.0 SDV6 typically range from £3,700 to £5,600 for supply and fit, depending on the output tune and ancillary condition found during strip-down. Labour alone typically adds £700 to £1,300 depending on model year and engine bay access, with the HSE Dynamic tune sitting at the higher end due to its additional turbo calibration components. Warranty length also affects the final quote, with a longer warranty typically reflecting a more thorough rebuild process behind the scenes.
Our Supply and Fit Services at Engine Solutions
Engine Solutions provides complete supply and fit services for the 3.0 SDV6 and every other engine fitted to the Range Rover Sport, so you receive an accurate quote based on your exact engine code and output tune. Our process starts with a free diagnostic quote, followed by sourcing the correctly matched reconditioned engine or verified used unit from our network. Our technicians carry out the fitting, including ancillary transfer, fluids, and a full road test, with every job backed by a written warranty. We operate with no upfront charges and no deposit required, so you know the cost before work begins.
Table of Range Rover Sport Engine Models in Detail
The table below gives a detailed breakdown of every Range Rover Sport engine to help you shop for the correct Range Rover engine for sale and see where the SDV6 sits within the wider range.
| Output Badge | Years | Engine Code | Fuel Type | Turbo Type | Power Output | Torque | Common Fault | Recon Supply & Fit |
| 3.0 TDV6 | 2013–2015 | 306DT | Diesel | Single turbo | 254–255 bhp | 600 Nm | Timing chain wear | £3,600–£5,200 |
| 3.0 SDV6 | 2013–2022 | 306DT | Diesel | Single turbo | 258 bhp | 600 Nm | EGR valve clogging | £3,700–£5,300 |
| 3.0 SDV6 HSE Dynamic | 2015–2022 | 306DT | Diesel | Single turbo | 306 bhp | 700 Nm | Turbo actuator wear | £3,900–£5,600 |
| 4.4 SDV8 | 2013–2021 | 368DT | Diesel | Twin turbo | 335–339 bhp | 740 Nm | Injector seal leaks | £4,200–£6,000 |
| 5.0 V8 Supercharged | 2013–2022 | AJ133 | Petrol | Supercharged | 503–557 bhp | 625–700 Nm | Supercharger coupling wear | £6,800–£9,600 |
| D300 Ingenium | 2020–2022 | 306DT | Diesel + 48V | Single turbo | 296–300 bhp | 650 Nm | Mild-hybrid battery checks | £4,300–£6,100 |
| P400 Ingenium | 2020–2022 | 400PT | Petrol + 48V | Twin-scroll turbo | 400 bhp | 550 Nm | Coil pack, mild-hybrid checks | £5,200–£7,300 |
Figures are supply-and-fit estimates for a genuine, warrantied reconditioned unit and will vary based on ancillary condition, labour rates, and warranty length on the day.
Nationwide Logistics: Why Choose Engine Solutions in Grays
Based in Grays, UK, Engine Solutions runs a dedicated logistics operation to move any Range Rover Sport engine safely and quickly across the country, including every SDV6 output tune. Every unit is securely palletised and tracked from our warehouse to your chosen garage or address, with most UK mainland deliveries arriving within one to three working days. We also offer engine collection for core exchange returns, reducing costs further for customers upgrading their unit. Local customers across Essex and London benefit from direct collection and delivery using our own transport, keeping every Range Rover Sport engine replacement predictable and transparent.
Frequently Asked Questions
1. What is the Range Rover Sport 3.0 SDV6 engine?
It is a diesel V6, engine code 306DT, fitted across L494-generation Range Rover Sport models from 2013 onwards.
2. How much power does the SDV6 produce?
Standard tune produces around 258 bhp, while the HSE Dynamic tune raises this to around 306 bhp.
3. Is the SDV6 reliable in the Range Rover Sport?
Yes, with proactive maintenance it is generally reliable, though timing chain and EGR issues are known faults.
4. Do I need to pay a deposit for engine replacement?
No, Engine Solutions operates with no upfront charges and no deposit required on any job.
5. Do you deliver Range Rover Sport engines across the UK?
Yes, we deliver nationwide from our Grays base, with most orders arriving within one to three working days.