Range Rover L405 Engine Replacement Cost in the UK (2026 Guide by Engine and Year)

Your L405 is knocking, smoking, throwing up warning lights or dropping into limp mode. Maybe a garage has already said the words "you need a new engine." Your first question is almost certainly: what is this going to cost me?

The Range Rover L405 engine replacement cost depends on your engine code, your model year, whether you choose reconditioned or used, and whether you want supply only or supply and fit. A 2012 car with a 4.4 SDV8 sits in a very different bracket from a 2018 car with a 3.0 diesel.

At Voguetechnics, we supply and fit replacement engines from our base in Grays, Essex, and we deliver across the UK. This guide shows what builds the price, which faults really need a new engine, and how to compare quotes fairly. If you already know your registration, you can get a quote by reg straight away.

How Much Does a Range Rover L405 Engine Replacement Cost in the UK?

Engine prices move with stock levels, donor-vehicle supply and market demand. A number printed in an article goes out of date quickly, so we don't print one here. What we can do is show you how a quote is built, so you can judge any figure you receive, ours included.

If you're searching for Range Rover engine replacement cost UK figures, remember that every honest quote is made up of the same four parts:

• The engine itself. This is the largest share of the bill. It varies with engine code, condition and whether it is reconditioned, used or new.
• Labour. Taking an engine out of an L405 and refitting it is specialist work. Aluminium bodywork, air suspension and tightly packed engine bays all add time.
• Ancillary parts. Gaskets, seals, coolant, oil, filters, and often a turbo, injectors or timing components that should be renewed while the engine is out.
• Delivery. This applies if you buy supply only and use your own garage.

Always check that every quote covers the same items. A low headline price that leaves out labour, ancillaries or warranty is rarely the cheapest option in the end.

What Affects L405 Engine Replacement Cost by Engine Code, Fuel Type and Model Year?

The L405 (2012 to 2021) was sold with several engines over its life. Each has a different parts supply and a different build cost. The table below shows relative cost position, not prices.

A reconditioned 3.0 diesel will almost always sit below a reconditioned V8. But the gap between a used and a reconditioned unit of the same code can matter just as much as the gap between engine types.

How model year changes the picture

• 2012 L405. Early cars are now well over a decade old. Mileage is often high, so a fault in one area may be a sign of wear elsewhere. Parts supply for the main engines is strong, but it pays to check the condition of ancillaries such as turbos and timing components while the engine is out. If you're pricing a 2012 Range Rover L405 engine replacement, ask whether the quote includes these.
• 2016 L405. Cars from this period are the sweet spot for supply. Diesel and petrol engines are well documented and donor units are available, so the 2016 Range Rover L405 engine replacement cost usually reflects the engine code more than anything else.
• 2018 L405. The facelift years brought running changes and the plug-in hybrid. If you're comparing a 2018 Range Rover L405 engine replacement cost, confirm the exact engine variant first, because a hybrid is a different job from a standard diesel or petrol.

Not sure which code you have? Your registration is the quickest route. It lets us match the unit to your exact vehicle rather than guessing from a model year.

Reconditioned, Used or New: What Does Each Option Add to the Bill?

Each option changes both the price and the risk.

• Used engine. Taken from a donor vehicle, tested and sold with its wear intact. It carries the lowest upfront cost and the most unknowns.
• Reconditioned engine. Stripped, inspected, machined where needed, rebuilt with new wear parts and bench-tested. It costs more than used but gives more predictable life.
• New engine. The highest cost position and often unnecessary for a car of this age.

Before you accept any quote, ask these questions:

• Is labour included, or is this supply only?
• Are the turbo, injectors, water pump and timing components included or extra?
• What warranty applies, and are there mileage limits or fitting conditions?
• Is delivery included?

The point of this list is to compare like with like. Two quotes that look 20 percent apart are often different jobs.

What Are the Most Common Range Rover L405 Engine Problems, and Is Repair Cheaper Than Replacement?

Not every fault means a new engine. A good workshop will tell you so, because replacing an engine that could be repaired helps nobody.

A single-component repair will usually cost far less than a full Land Rover engine replacement. But once damage spreads through the engine, repair stops making sense. The skill is knowing where that line sits.

Which L405 Engine Faults Justify a Full Replacement (Crankshaft Bearings, Timing Chain, Turbo, Oil Consumption)?

These are the faults we see most often on the L405, and how we judge them:

• Crankshaft bearing failure on the 3.0 diesel (306DT). A knock that gets louder under load is the classic sign. Once the crankshaft or block is damaged, replacement is usually the only sensible route.
• Timing chain and tensioner wear on the 4.4 SDV8 (448DT). Early rattle on cold start may be fixable. If the chain has jumped and valves have been damaged, the engine is usually beyond economic repair.
• Supercharger and chain guide wear on the 5.0 V8 (AJ133). Caught early, this can be a repair. Left too long, debris can travel into the engine.
• Turbo and DPF problems on the diesels. A failed turbo can be replaced alone. If metal fragments have travelled into the engine, the damage goes deeper. DPF faults are often a separate repair unless they have caused wider problems.
• High oil consumption. Consuming oil is a warning that something internal is wearing. Ignoring it risks oil starvation, which can destroy bearings.
• Overheating and head gasket failure. A warped or cracked head or block usually points towards replacement.

Our simple rule: if the repair quote is approaching the cost of a reconditioned engine, or the engine has a history of repeat faults, replacement usually gives better value and more peace of mind.

A typical scenario. A driver notices a faint knock on a high-mileage 3.0 diesel and keeps driving for a few weeks. By the time the car reaches a workshop, the bearing damage has spread, and what could have been caught early now needs a full engine. The lesson is simple: a new noise is an instruction to stop, not a thing to monitor.

Watch for these warning signs and get the car checked promptly:

• Oil pressure, engine management or limp-mode warnings
• Blue or white smoke from the exhaust
• Knocking or metallic rattling, especially at start-up or under load
• Unexplained oil or coolant loss
• Loss of power or a rough idle

If you have one or more of these, a diagnosis comes before any decision about repair or replacement. We're happy to talk through your symptoms and give you an honest view.

Should You Buy a Reconditioned or Used Engine for Your Range Rover L405 or Range Rover Sport?

Once you've decided on replacement, the next choice is between reconditioned and used. It's the biggest decision after confirming your engine code.

Reconditioned vs Used L405 Engines: Which Lasts Longer and Offers Better Value?

A used engine comes from a donor vehicle. It is tested and sold as it is, with its history and wear intact.

A reconditioned engine is dismantled, inspected, machined where needed, rebuilt with new wear parts and tested before sale. The standard of the rebuild matters a great deal, so always ask what has been replaced.

Our view: for an L405 you plan to keep and rely on, a reconditioned engine is usually the safer investment. For an older car you may sell soon, a good used unit can be enough.

Range Rover Sport owners, read this. The L494 Range Rover Sport shares several engine families with the L405, including the 3.0 diesel, 4.4 SDV8, supercharged V6 and 5.0 V8. If you're searching for a Range Rover Sport engine for sale, the same logic applies. But fitment depends on year, specification and engine code, so confirm yours by registration before you order.

Before you buy from any supplier, ask:

• What parts were replaced during the rebuild?
• Was the engine bench-tested?
• What are the warranty length, mileage limits and exclusions?
• Does the warranty require fitting by an approved workshop?
• Is the exact engine code confirmed against my registration?

A supplier who answers these clearly is worth talking to. One who avoids them is not.

Why Choose Voguetechnics for Your L405 Engine Supply and Fit in Grays, Essex?

We are a UK engine supplier based in Grays, Essex. We work on Range Rover, Land Rover and other premium vehicles, and we keep the process straightforward.

Here is what customers value most:

• Supply and fit under one roof. One point of contact from quote to completion.
• UK-wide delivery. If you prefer your own garage, we can supply only.
• Engines matched to your vehicle. We check your registration, engine code and specification before we quote.
• Clear quotes. We explain what is and isn't included, so there are no surprises on the day.
• Warranty-backed engines. Cover details are confirmed in your quote.

If you're searching for a local specialist, we're easy to reach from Essex, London and Kent, and we arrange delivery for owners further away.

How Do I Get an Exact Quote for My Range Rover L405 Engine?

Because prices move with stock and market conditions, a live quote is the only reliable way to know your real cost. It takes three steps:

1. Enter your registration. We pull up your vehicle details and likely engine code.
2. Confirm your engine and fault. We check your code, fuel type and specification, and talk through the symptoms.
3. Receive your quote. You get a clear price for supply only or supply and fit, with warranty details included.

Frequently Asked Questions

How much does a Range Rover L405 engine replacement cost in the UK?
 It depends on the engine code, model year, whether the engine is used or reconditioned, and whether you choose supply only or supply and fit. Diesels such as the 3.0 generally sit lower, and the V8 and hybrid units sit higher. A registration-based quote gives you your actual price.

Is it worth replacing a Range Rover L405 engine?
 Often yes, if the engine has serious internal damage and the rest of the car is sound. If the fault is a single component, repair is usually cheaper.

Which L405 engine is the most reliable?
 No engine is fault-free, and condition and servicing history matter more than the badge. The 3.0 diesel is common and well supported, while the V8s need closer attention to chains and superchargers.

How long does an L405 engine replacement take?
 Most jobs take several working days, depending on engine type, parts availability and anything else found during removal.

Can I use a used engine to save money?
 Yes, but it carries more unknowns. A reconditioned unit generally gives better long-term value for a car you plan to keep.

Does the same engine fit the Range Rover Sport?
 Several engine families are shared, but fitment depends on year and specification. Confirm by registration before ordering.

How do I find my Range Rover engine code?
 Check your V5C, the engine bay plate or your registration lookup. If you're unsure, we can confirm it for you.

Does engine replacement affect my car's value?
 A documented replacement with an invoice and warranty usually helps compared with a car running a failing engine.

Final Word: Get the Right Engine at the Right Price

Replacing an L405 engine is a big decision, but it doesn't need to be a confusing one. Know your engine code, decide between used and reconditioned based on how long you'll keep the car, and compare quotes like for like.

If you want a clear, current price from a team that supplies and fits engines from Grays, Essex, and delivers across the UK, we're ready to help.