Range Rover 4.4 TDV8 reliability and the 3.6 TDV8
Range Rover 4.4 TDV8 reliability compared with the 3.6 TDV8 and 4.4 SDV8: turbos, oil coolers, DPF oil dilution, repair costs and values.
· 7 min read
Range Rover 4.4 TDV8 reliability is good by the standards of big luxury diesels: the 2010–2012 4.4 TDV8 and the later 4.4 SDV8 are generally tougher than both the earlier 3.6 TDV8 and the 3.0 V6 diesels. The main risks are turbo and oil-cooler faults, oil dilution from failed particulate-filter regenerations and expensive access to everything under the bonnet.
Which Range Rovers have the TDV8 and SDV8?
Land Rover used three V8 diesels between 2006 and 2020, and each fits a specific set of models. Knowing which one is in the car is the starting point for any valuation.
| Engine | Output (approx.) | Models and years |
|---|---|---|
| 3.6 TDV8 | 272 PS | Range Rover L322 2006–2010, Range Rover Sport L320 2006–2010 |
| 4.4 TDV8 | 313 PS | Range Rover L322 2010–2012 |
| 4.4 SDV8 | 339 PS | Range Rover L405 2013–2020, Range Rover Sport L494 2013–2017 |
All three are twin-turbo V8s from the same engine family, but the 4.4 versions brought revised turbos, more torque and, on the 2010 L322, an eight-speed automatic gearbox.
Is the 4.4 TDV8 more reliable than the 3.6?
Yes, the 4.4 TDV8 is generally more reliable than the 3.6 TDV8. The 3.6 has a well-known record of turbo wear, oil leaks and oil collecting in the intercoolers; the 4.4 suffers from these issues less often, according to specialists and owner reports.
Why the 3.6 has a weaker reputation:
- Turbochargers wear and leak oil, often linked to oil-feed problems, EGR faults and poor servicing.
- Large oil capacity – nearly nine litres in the sump – means slow oil loss goes unnoticed until oil appears in the intake or intercoolers.
- Oil cooler and other leaks add to the oil-loss problem.
- Age – most 3.6 cars are now 15 years old or more, with all the rubber and plastic ageing that brings.
Is the Range Rover 3.6 TDV8 engine reliable? It can be, if the turbos and coolers have been addressed and the oil was changed regularly. Without that evidence, price it as a car that may need turbo work.
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Request accessCommon problems on the 4.4 TDV8 and SDV8
The common TDV8 problems on the 4.4 engines are oil cooler leaks, turbo oil seals, coolant hoses and plastic housings, and oil dilution on cars driven mostly on short trips.
What to know about each:
- Oil dilution: When the diesel particulate filter cannot complete a regeneration, extra fuel ends up in the oil. Repeated incomplete regenerations raise the oil level and thin it, which can damage bearings. Check the oil level and smell, and ask how the car was used.
- Oil coolers and seals: Leaks show as oil on the engine valley or coolant contamination.
- Coolant system: The engine has many hoses and plastic parts that soften or crack with age; a small leak can overheat a V8.
- Turbos: Less troublesome than on the 3.6, but oil feed and seal issues still occur.
- Glow plugs, sensors and EGR: Routine faults that cause warning lights and limp mode.
Is the SDV8 a good engine? Yes. In the L405 it built a strong reputation, and catastrophic failures are rare. Its main weaknesses are those above, plus the high cost of any repair that requires lifting the body or removing the engine.
How long does a Range Rover V8 diesel last?
A well-maintained 4.4 V8 diesel commonly covers 250,000 km or more before major engine work. The key is oil: changes at the correct intervals, the right specification and regular long runs that let the particulate filter regenerate.
Signs that a high-mileage engine is near the end of its life include heavy blue smoke, excessive oil consumption, low oil pressure warnings and knocking at idle. Any of these should stop the purchase unless the price is close to scrap value.
How expensive are TDV8 repairs?
TDV8 repairs are expensive mainly because of labour. Many jobs on these engines require removing large parts of the front end or lifting the body from the chassis on body-on-frame L322s.
Typical cost drivers:
- Turbo replacement – parts plus many hours of labour, especially on the 3.6.
- Oil cooler or valley leaks – access is the problem, not parts.
- Engine replacement – a used or rebuilt V8 diesel is a five-figure job at most workshops.
- Air suspension and gearbox – not engine faults, but they affect every Range Rover of this age.
For a dealer, the practical approach is a repair reserve. On a 3.6 TDV8 without turbo history, assume turbo work. On a 4.4, assume at least cooling-system work and an oil-dilution check.
How reliable is a Range Rover Autobiography?
An Autobiography has the same engines and mechanicals as other trims, so its reliability is the same. What changes is the cost of repair: more electrically adjustable seats, rear entertainment, larger wheels and more complex trim mean more things that can fail.
Autobiography trim also lifts values, so the extra cost is usually covered if the car's features all work. Test every function before you buy.
What V8 diesel Range Rovers sell for
Values of V8 diesel Range Rovers vary by generation more than by mileage. According to listings tracked by MyCarDealer in Germany, the Netherlands, Belgium, Italy and Poland in October 2026:
| Car | Main diesel engines | Listings | Median asking price |
|---|---|---|---|
| Range Rover L322 2006–2009 diesel | 3.6 TDV8, Td6 | 25 | €9,500 |
| Range Rover L322 2010–2012 diesel | 4.4 TDV8 | 24 | €13,723 |
| Range Rover Sport L320 2007–2009 diesel | 3.6 TDV8, 2.7 TDV6 | 82 | €6,499 |
| Range Rover L405 2013–2016 diesel | 4.4 SDV8, 3.0 SDV6 | 132 | €23,500 |
The 2010–2012 L322, where the 4.4 TDV8 was the diesel offered, had a noticeably higher median than earlier L322 diesels. Older Range Rover Sports with V8 diesels are cheap, which means one turbo repair can exceed the margin.
Use these medians as a guide only. To check a specific car, compare it with current listings of the same engine in your market, for example with a free valuation.
Buying a V8 diesel Range Rover at auction
At auction, a V8 diesel Range Rover should be bid on evidence, not on specification. Condition reports rarely show the faults that matter.
- Confirm the exact engine from the VIN or registration documents.
- Check service history for oil changes and turbo or cooler work.
- Read the condition report for warning lights, smoke or noise remarks.
- Price the air suspension and gearbox separately.
- Set your maximum bid using a repair reserve. Our guide to Range Rover reliability helps compare engines across generations, and auction condition reports explains what the grades hide.
Frequently asked questions
Is the 4.4 TDV8 more reliable than the 3.6?
Generally yes. The 3.6 TDV8 has a well-known record of turbo wear and oil leaks, while the 4.4 suffers from these problems less often. Both need correct oil and regular servicing.
What are the common TDV8 problems?
Turbo wear and oil leaks on the 3.6; oil cooler leaks, coolant hoses and plastic housings, turbo seals and oil dilution from failed particulate-filter regenerations on the 4.4. Repair costs are high mainly because of labour.
Is the SDV8 a good engine?
Yes. The 4.4 SDV8 in the L405 Range Rover has a strong reputation and catastrophic failures are rare. Short-trip use, which leads to oil dilution, is its main enemy.
How long does a Range Rover engine last?
A well-maintained V8 diesel commonly covers 250,000 km or more before major engine work. Oil quality, service intervals and driving pattern matter more than the mileage itself.
How expensive are TDV8 repairs?
Expensive, mostly because of labour and access. A turbo job on a 3.6 or an engine replacement on any V8 diesel can exceed the value of an older car, so price a repair reserve into every bid.