★★★★★
Our Verdict:
Now a rising classic where engine work is restoration, not repair — values increasingly justify proper rebuilds. The Tdi diesels and well-fed V8s go on forever; the bodywork is the project.

Every generation. Every engine code. Every known failure. Every replacement cost. From the original V8 to the L460's twin-turbo flagship — backed by 468+ real UK Range Rover enquiries [EM-VERIFIED].
Explore Range Rover Engines468+ Enquiries (2025)
5 Generations Covered
16 Engine Codes
Part of Engine Finders

★★★½ (3.5/5)
⚠️ The Widest Swing in the Range — a £6,500 engine is trivial in a £60,000 L405 and terminal in a £6,000 L322. Generation decides everything.
★★★☆☆ — the engines are mostly better than the reputation; the air suspension and electronics around them earn the reputation
4.4 SDV8 (448DT) — the most dependable big diesel JLR made • BMW M57 Td6 (L322 era)
3.0 TDV6/SDV6 (306DT) — crankshaft bearing • 3.6 TDV8 (368DT) — timing chain/tensioner
Late L405 4.4 SDV8 Vogue — flagship luxury, the range's strongest engine
L460 D350 — the AJ20D6 six carries none of the old V6 legacy
£7,400 reconditioned, supply only [EM-QUOTE]
306DT crankshaft bearing (L405 TDV6) [EM-VERIFIED]
👑 Flagship — and home of our Most Dependable Big Engine (4.4 SDV8)
One-line verdict:
The Range Rover is where engine economics get emotional — the same reconditioned V8 that's a rounding error on an L460 invoice is a death sentence for a cheap L322, and knowing which side of that line your car sits on is worth more than any spec sheet.

Generations
5 (Classic, P38A, L322, L405, L460)
Years Produced
1970–present
Engine Codes Tracked
16
Fuel Types
Petrol, Diesel, Plug-in Hybrid (2017+), Mild-Hybrid (2020+)
Most Enquired Generation (2025)
L405 — 284 enquiries [EM-VERIFIED]
Most Reliable
4.4 SDV8 (448DT) / BMW M57 Td6
Highest-Risk
306DT crankshaft bearing • 368DT timing chain
Typical Replacement Cost
£3,000–£12,000 reconditioned [EM-QUOTE]
Typical Host Value
£4,000 (tired L322) – £150,000+ (new L460)
Overall Rating
★★★½ 3.5/5
3.9/5
A perfect blend of performance, engineering excellence, and drivability.
Fifty-plus years, five generations, and five completely different ownership propositions.
| Pre-2013 (E90/F30 early) | 2013-2015 (F30 pre-LCI) | 2016+ (F30 LCI / G20) | Our position | |
|---|---|---|---|---|
| Core diesel | The 3 Series we recommend for daily ownership | |||
| Core petrol |
| Engine Code | Family | Fuel | Disp. | Power | Years | Gen. | Reliability | 2025 Enquiries | Avg. Recon Cost |
|---|---|---|---|---|---|---|---|---|---|
| Rover V8 | Rover V8 | Petrol | 3.5–4.2L | 132–200 bhp | 1970–1996 | Classic | ★★★★★ | — (pattern data) | £3,000–£5,500 |
| 200Tdi/300Tdi | Tdi | Diesel | 2.5L | 107–111 bhp | 1992–1996 | Classic | ★★★★★ | — (pattern data) | £2,500–£4,500 |
| 2.5 VM | VM Motori | Diesel | 2.5L | 112 bhp | 1986–1992 | Classic | ★★★★★ | — (pattern data) | £2,500–£4,000 |
| 4.0/4.6 V8 | Rover V8 (GEMS/Thor) | Petrol | 4.0–4.6L | 190–225 bhp | 1994–2002 | P38 | ★★★★★ | — (pattern data) | £3,000–£5,500 |
| 2.5 DSE (M51) | BMW M51 | Diesel | 2.5L | 136 bhp | 1994–2002 | P38 | ★★★★★ | — (pattern data) | £2,500–£4,000 |
| M62 4.4 | BMW M62 | Petrol | 4.4L | 286 bhp | 2002–2005 | L322 | ★★★★★ | — (pattern data) | £3,500–£5,500 |
| M57 Td6 | BMW M57 | Diesel | 3.0L | 177 bhp | 2002–2006 | L322 | ★★★½★ | — (pattern data) | £3,000–£5,000 |
| 4.4 AJ-V8 | Jaguar AJ-V8 | Petrol | 4.4L | 306 bhp | 2005–2009 | L322 | ★★★★★ | — (pattern data) | £4,500–£7,000 |
| 368DT | TDV8 | Diesel | 3.6L | 272 bhp | 2006–2010 | L322 | ★★★★★ | 650 JLR-wide [EM-VERIFIED] | £5,500–£8,000 [EM-QUOTE] |
| 448DT | TDV8/SDV8 | Diesel | 4.4L | 313–339 bhp | 2010–2020 | L322, L405 | ★★★★★ | 620 JLR-wide [EM-VERIFIED — recorded as "508PS" in source data; see correction note] | £8,000–£12,000 [EM-QUOTE] |
Showing 10 of 16 engine codes
iAll enquiries are from 2025 (to date) and verified via our internal system. Recon costs are supply only and exclude fitting.
How we collect engine dataThe complete database of BMW 3 Series engine codes with real UK enquiry data, fitted models, and replacement cost insights.
Every figure below is powered by 24,650+ real UK owner enquiries in 2025. This is data you won't find anywhere else.
Enquiry volumes:
EM_Proprietary_Data_2025.txt [EM-VERIFIED]
Costs:
Table A - Engine Replacement Economics [EM-QUOTE]
Engine codes:
Cross-referenced from your existing data
The L405 TDV6/SDV6's defining risk — cold-start knock is the warning, and once the bottom end lets go there's rarely anything to rebuild. £6,500–£9,500 recon [EM-QUOTE].
Learn moreThe 3.6 TDV8's known weakness — chain and guide wear with snap risk on neglected oil intervals. Affects L322 2006–2010.
Learn moreSupercharger nose bearing whine plus timing chain guide wear on early 5.0s — noisy warning, expensive silence. Affects L322/L405 petrols.
Learn moreSlipped cylinder liners and porous blocks on the 4.0/4.6 — the failure that halved P38 values. Top-hat liner rebuilds fix it permanently.
Learn moreEvery generation from Classic LSE onward; compressor burnout presents a fire risk. The most common non-engine enquiry across all Range Rovers.
Learn moreShort-run D300/D350s dilute oil through interrupted DPF regens; P400e engines that never run suffer their own neglect patterns. Modern problems for modern Range Rovers.
Learn moreCatastrophicstop driving, specialist inspection immediately
Immediatebook inspection now
Monitorbook inspection soon
Lowplan at next service
826+
Total Enquiries in 2025
[BMW-VERIFIED]
Range Rover L405 enquiries
Rising as the parc exits warranty cover[PLACEHOLDER — YoY %]
Range Rover L460 enquiries
Rising[PLACEHOLDER — YoY %]
4.4 TDV8/SDV8 enquiries (JLR-wide)
Stable[PLACEHOLDER — YoY %]
368DT enquiries (JLR-wide)
⬇ Falling with the L322 parc[PLACEHOLDER — YoY %]
Interesting insight: A £150,000 flagship generating 184 engine enquiries in its first years [EM-VERIFIED] is unusual — L460 demand is dominated by extended-warranty and due-diligence questions, not failures. Owners are nervous about the headlines, not the engines. (Editorial synthesis — specialist sense-check before publishing.)
L405 enquiries concentrate heavily on the TDV6/SDV6 — the SDV8, despite the biggest bills, barely features in failure enquiries. The most expensive engine is the cheapest to own per mile. (Editorial synthesis.)
368DT demand is declining in step with L322 values — the same end-of-economics curve we track on the Discovery 3. (Editorial synthesis.)
Editorial Pull-Quote
“If you buy one Range Rover based on this page, buy a late L405 4.4 SDV8 — the most dependable big engine JLR ever made, wrapped in the last of the pre-L460 depreciation. And if a £7,000 L322 is calling you: the car is £7,000, the ownership isn't.”

| Variant | Engine Code | Used (Supply) | Reconditioned (Supply) | Rebuilt (Supply) | Labour Hours |
|---|---|---|---|---|---|
| V8 3.5–4.2 | Rover V8 | £1,500–£3,000 | £3,000–£5,500 | £4,500–£7,500 | 12–16 hrs |
| 200Tdi/300Tdi | Tdi | £1,500–£2,800 | £2,500–£4,500 | £3,800–£5,500 | 10–14 hrs |
N47D20C, B47D20A, N57D30, B58B30 figures [BMW-QUOTE]; older engines [PLACEHOLDER - confirm vs cost sheet].
306DT, 368DT, 448DT, AJ133, 204PT, AJ20D6 figures [EM-QUOTE]; Classic, P38, BMW-era and L460 rows [PLACEHOLDER — confirm vs Table A].
Value the car first; the engine decision follows.
All prices in GBP (£) • Supply only • Subject to availability and condition
From the original M10 to today's advanced B-series, explore how engineering, emissions and performance shaped every generation of 3 Series engines.
The Buick-derived V8 defined the car; diesels arrived only when fuel prices demanded them
The Classic is now the only Range Rover whose engine work is an investment
BMW ownership brought German engines — the M57 Td6 remains one of the most dependable diesels ever fitted to a Range Rover
The sleeper knowledge: early L322s are more BMW than Land Rover, and better for it
Ford brought Jaguar's V8s and the joint-venture TDV8s — huge performance gains, new failure modes
The 368DT's chain issue and the 448DT's near-flawless record are one lesson apart
The aluminium L405 demanded efficiency — the V6 diesel carried the volume and the crank-bearing risk with it
The SDV8 outlived the SDV6's reputation for a reason
Electrification retired the old diesels; for the V8, JLR went back to BMW — full circle after 25 years
The cleanest engine slate since the Classic, at the highest prices in the car's history
All engine reliability insights and failure patterns are based on 826+ verified enquiries in 2025. Data covers the UK market. [BMW-VERIFIED]
Different buyers, different priorities. Here is our verdict on who the Range Rover is perfect for - and who should think twice.

An L405 is a magnificent family flagship — budget running costs like a second mortgage payment and it will never disappoint.

The wrong tool. Short runs punish the diesels' DPFs and the PHEVs only make sense with a driveway charger and discipline.

3,500kg with imperious ease — the SDV8 L405 may be the finest tow car ever sold in Britain.

The most dangerous badge on this site for a tight budget. A cheap L322 or P38 is not a cheap Range Rover — it's an expensive one with the first year's bills prepaid by nobody.

Classics are appreciating assets worth proper engine investment; a cherished SDV8 L405 is a future classic being written now.
Real talk. The right Range Rover for you depends on your budget, your mileage, and your patience for maintenance. Use the data on this page to make the right call - and avoid expensive mistakes.

Cold-start knock on an SDV6?
Chain noise on a TDV8? On this model the answer swings on your car's value — get a personalised verdict using real UK cost data.
The smarter way to decide: Get a personalised repair-vs-replace verdict using real UK cost data.
Launch the diagnostic calculator with Range Rover pre-selected.
We'll identify it first.
Identification is the first step inside the tool.
We'll pinpoint your exact engine code before running the diagnostics.
Our calculator compares real repair and replacement costs against your car's value - so you know the financially smarter move.
Built on Real Data - 468 modern Range Rover enquiries in 2025 alone [EM-VERIFIED], plus every TDV6, TDV8 and SDV8 decision in our JLR-wide dataset.
We Tell You When Not to Repair - Including the hard conversations: some L322s and most P38s can't carry a recon bill. We'll say so before you spend.
Vetted Specialists at Every Tier - From TDV8 bottom-end assessment to P38 top-hat liner rebuilds, every specialist in our network is vetted for the specific generation you own.
Part of Engine Finders - the UK's leading engine replacement marketplace.
Read our in-depth BMW 3 Series vs 5 Series reliability guide.

Everything you need to choose with confidence.
Data. Honesty. Specialists. All in one place.