Discovery 4 Turbo Replacement Cost: UK Prices and Labour

The Discovery 4's 3.0 V6 diesel uses two turbochargers in a tight engine bay, so the turbo replacement cost depends heavily on which turbo has failed and how hard it is to reach. This guide compares advertised part prices and fitted prices for the TDV6 and SDV6. It explains the oil-system work a proper job includes. It also shows how to rule out cheaper faults before you replace a turbo.

The Discovery 4's 3.0-litre V6 diesel uses two turbochargers. Its tight engine bay also makes the job more involved than on many other cars.

One UK specialist advertises turbo work on JLR diesels at £895–£1,295 for a rebuild and £1,495–£2,295 for a new unit on twin-turbo SDV6 engines, both including VAT. Main-dealer work is said to regularly exceed £3,500.

The turbo itself can cost from under £400 for a reconditioned unit to well over £1,000 for a new secondary turbo, before fitting.

Before you agree to any of this, confirm the turbo really has failed, and find out why it failed.

The Discovery 4 Twin-Turbo System

The Discovery 4 (L319, 2010–2016) was mainly sold in the UK with the 3.0 TDV6 and SDV6 V6 diesels. Both use two turbochargers:

a primary turbo, which works all the time;
a secondary turbo, which joins in at higher engine speeds to give more power.

Which Turbo Has Failed?

Turbo	Typical part listing	Notes
Left-hand (primary)	LR056369, new or reconditioned	Variable-geometry; works at all speeds
Right-hand (secondary)	LR128704 / LR116631	Brought in at higher revs

Part numbers are as listed by LR Parts. Which part fits depends on your VIN and engine variant, so confirm the exact part with your chassis number.

Whether one or both turbos need replacing changes the bill considerably. Diagnosis should identify which turbo is at fault, and whether the second turbo has also been contaminated.

How Much Does a Discovery 4 Turbo Replacement Cost?

The figures below are advertised third-party prices. They are not Vogue Technics Engine Rebuild prices.

Turbo Part Prices

Part	Condition	Price	VAT	Source
Right-hand turbo (LR128704)	Reconditioned	£372.60	Excl.	LR Parts
Left-hand turbo (LR056369)	Reconditioned	£393.30	Excl.	LR Parts
Left-hand turbo (LR056369)	New	£991.94	Excl.	LR Parts
Right-hand secondary turbo (LR116631)	New/genuine options	From £1,484.20	Excl.	LR Parts
3.0 TDV6/SDV6 turbo (829440-0003)	Remanufactured	£539	Not stated	Turboworks

Sources: LR Parts; Turboworks.

Fitted Prices and What Pushes Them Up

Job type	Advertised price	VAT	Source
Turbo rebuild, fitted	£895–£1,295	Included	JLR Engines
New turbo, complex twin-turbo SDV6	£1,495–£2,295	Included	JLR Engines
Main dealer equivalent	"Regularly exceed £3,500"	Not stated	JLR Engines (claim)

Source: JLR Engines.

The main factors that push the bill up are:

Access. On the TDV6 and SDV6, the turbos sit low and tight against the engine. Removal may need the subframe partly lowered or ancillaries taken off, and some jobs are combined with body-off or engine-out work. Labour is the biggest variable.
One turbo or two. Replacing both turbos, or the dearer secondary unit, adds substantially to the cost.
Oil-system flush. Oil feed and return lines should be cleaned or replaced, and the intercooler cleaned if oil has got into it.
Related parts. New gaskets, oil feed washers and drain pipes. LR Parts also lists a turbo drain modification kit referenced to Land Rover bulletin LTB00487.
DPF contamination. A failing turbo can push oil into the exhaust and damage the DPF.
VAT, and any exchange surcharge for the old turbo.

Vogue Technics Engine Rebuild's turbo replacement service charges DPF cleaning separately where it is needed. Ask for every item above to be listed on your written quote.

Is It Really the Turbo?

Many Discovery 4 "turbo failures" turn out to be cheaper faults. A replacement turbo can also fail quickly if the original cause is left in place.

Diagnosis Before Replacement

Symptom	Possible causes	First checks
Limp mode, underboost code (P0299)	Split intercooler or boost hose, sticking turbo vanes, actuator fault	Pressure/smoke test; actuator movement
Whistle or siren under acceleration	Boost leak, worn turbo bearings	Hose inspection; shaft play
Blue or grey smoke, oil use	Worn turbo seals, crankcase breather problems	Oil in intercooler pipes; breather check
Metallic scraping	Damaged turbo wheels	Stop the engine; inspect for debris

Why the turbo failed matters as much as replacing it. Common root causes are:

a restricted oil supply or a blocked drain;
old or incorrect oil;
a blocked DPF creating back-pressure.

The most serious risk is a turbo failure caused by oil starvation. The same oil problem can be damaging the engine's crankshaft bearings. On the 3.0 V6 diesel that is a known high-cost failure. If metal is found in the oil, the engine needs inspecting, not just the turbo.

Vogue Technics Engine Rebuild's engine repair diagnostics can check oil condition and pressure before any parts are ordered. If the engine itself is damaged, see the Discovery 4 engine options.

Stop driving and arrange recovery if you have:

heavy smoke;
grinding or scraping from the turbo;
an oil-pressure warning;
a sudden oil loss.

Frequently Asked Questions

Discovery 4 Turbo Replacement Cost FAQs

How much does a Discovery 4 turbo replacement cost?
One specialist advertises £895–£1,295 for a rebuild and £1,495–£2,295 for a new unit on the twin-turbo SDV6, including VAT. Reconditioned turbos alone start under £400, excluding VAT, before fitting.

Does the Discovery 4 have two turbos?
Yes. The 3.0 TDV6 and SDV6 use a primary and a secondary turbo, and the cost depends on which one has failed.

Does the body or engine have to come off to replace a Discovery 4 turbo?
Not always. Access is tight, and specialists may lower the subframe or remove ancillaries. Some jobs are combined with engine-out work. Ask for the labour time on your quote.

Can I replace just one turbo?
Often, yes, if diagnosis shows the other is undamaged and uncontaminated. If oil or debris has spread through the system, both turbos and the intercooler may need attention.

Why did my new turbo fail?
Usually because the original cause wasn't fixed. Typical causes are oil supply problems, a blocked drain, contaminated oil or exhaust back-pressure.

For a turbo or engine quote on your Discovery 4, use the get a quote page or call Vogue Technics Engine Rebuild on 01375 531355. Please have your registration, engine, mileage, symptoms and any fault codes ready.