BMW M40d/M50d (B57/N57S) Diesel Engine
Used & Reconditioned for Sale
B57D30T1, B57D30M, N57S, BMW 3.0 Quad Turbo Diesel, BMW 3.0 Tri Turbo Diesel.
2,993cc
Displacement
Diesel
Fuel
2012–present
Production
Fits 5 Series, X5 and X6 models — also known as N57S, B57D30T1, B57D30M, 3.0 Quad Turbo Diesel, 3.0 Tri Turbo Diesel. Verified fitment, fixed prices, UK delivery.
Displacement
Fuel
Production
Configuration
Applications
Verified Fitment
Checked by registration
12-Month Warranty
On reconditioned units
UK Nationwide Delivery
2-4 working days
14-Day Returns
Uninstalled, full refund
Buy a M40d/M50d Engine for Your Vehicle
This page covers 3 distinct application groups for the BMW M40d/M50d engine family, each configured and priced for its specific vehicle. From F-chassis tri-turbo to G-chassis quad‑turbo and twin‑turbo, you’ll find the right unit here — ready to ship with a fitment guarantee.
M50d Tri-Turbo (F-Chassis)
Fits 5 Series F10, X5 F15 with N57S tri-turbo
£3,295
Coming soonM50d Quad-Turbo (G-Chassis)
Fits X5 G05, X6 G06, 7 Series G11 with B57 quad-turbo
£4,495
Coming soonM40d Twin-Turbo (G-Chassis)
Fits X5 G05, X6 G06, 7 Series G11, 5 Series G30 with B57 twin-turbo
£3,495
Coming soonFull M40d/M50d Compatibility
Use the table below to find your exact BMW model and variant. Every row links to the correct engine unit page, where you can confirm fitment by registration and see the price for your specific application.
| Model | Chassis | Variants | Years | Config. | Unit page |
|---|---|---|---|---|---|
| 5 Series | F10/F11 | M50d | 2012–2017 | Longitudinal | Coming soon |
| X5 | F15 | M50d | 2014–2018 | Longitudinal | Coming soon |
| X5 | G05 | M50d | 2019–2020 | Longitudinal | Coming soon |
| X6 | G06 | M50d | 2019–2020 | Longitudinal | Coming soon |
| 7 Series | G11/G12 | 740d / M50d | 2019–2020 | Longitudinal | Coming soon |
| X5 | G05 | M40d | 2020–present | Longitudinal | Coming soon |
| X6 | G06 | M40d | 2020–present | Longitudinal | Coming soon |
| 7 Series | G11/G12 | 740d / M40d | 2020–present | Longitudinal | Coming soon |
| 5 Series | G30/G31 | 540d / M40d | 2020–present | Longitudinal | Coming soon |
Confirm your exact specification with the registration checker above.
M40d/M50d Engine Prices
Prices below are for the three distinct M40d/M50d application groups we supply. Each group is priced separately based on turbo architecture, donor availability, and vehicle value. The price shown on each listing is the price you pay — no hidden fees at checkout.
| Application | Used from | Reconditioned from |
|---|---|---|
| M50d Tri-Turbo (F-Chassis) — 5 Series F10, X5 F15 | £3,295 | £4,995 |
| M50d Quad-Turbo (G-Chassis) — X5 G05, X6 G06, 7 Series G11 | £4,495 | £6,995 |
| M40d Twin-Turbo (G-Chassis) — X5 G05, X6 G06, 7 Series G11, 5 Series G30 | £3,495 | £4,995 |
DISCLAIMER: "Prices shown are current lowest listed prices and update as stock changes. The price on each listing is the price you pay — no hidden fees at checkout.
What You Get with a M40D-M50D Engine
What You Get with a M40D-M50D Engine
What's included
Not included
Used or reconditioned?
Used units are widely available and favoured for the G-chassis M40d applications given strong donor parc from late-model write-offs; reconditioned units are heavily favoured for the N57S Tri-Turbo and B57 Quad-Turbo M50d applications due to their extreme mechanical complexity and high replacement cost. BUYER ISSUE NOTE: The M40d and M50d engines feature highly complex multi-turbo setups (twin, tri, or quad) and operate under extreme thermal stress. Replacement demand is driven by turbocharger actuator wear, sequential valve degradation, and high-mileage timing chain stretch at the rear of the block. A prepared M40d/M50d unit addresses these wear points with updated turbo assemblies and revised chain kits as standard before dispatch.
M40d/M50d Engine Buying FAQs
Answers to common fitment, condition, warranty and delivery questions.
A:The M40d and M50d engines are fitted to BMW 5 Series (F10/G30), X5 (F15/G05), X6 (G06), and 7 Series (G11) in M40d and M50d trims, spanning 2012 to present.
A:M40d uses the B57D30M (twin-turbo) or earlier N57S variants; M50d uses N57S (tri-turbo) for F-chassis and B57D30T1 (quad-turbo) for G-chassis. Aliases include 3.0 Quad Turbo Diesel, 3.0 Tri Turbo Diesel.
A:Used units are widely available and favoured for the G-chassis M40d applications given strong donor parc from late-model write-offs; reconditioned units are heavily favoured for the N57S Tri-Turbo and B57 Quad-Turbo M50d applications due to their extreme mechanical complexity and high replacement cost. For high‑output M50d variants, recon is strongly recommended.
A:Use the compatibility table above to match your model, chassis, and year. For complete certainty, use the "Check Fitment by Reg" button below — we verify by VIN and block stamp (N57S for tri, B57D30T1 for quad, B57D30M for twin) plus the M40d/M50d badge.
A:6–12 month warranty depending on condition (used: 6 months parts-only; recon: 12 months unlimited-mileage). UK nationwide palletised delivery is included in the displayed price. Free compatibility check with every order.
Find Your M40d/M50d Engine — Check Fitment Now
Enter your registration or select your model from the table above to see exactly which M40d or M50d engine fits your BMW — and buy it at the listed price with UK delivery included.