Rated 4.45 out of 5 based on 22 customer ratings
(22 customer reviews)

BMW M10 Engine

$16,000.00

BMW M10 Engine

The BMW M10 is widely considered the most important engine in BMW’s history. Designed by Baron Alex von Falkenhausen and introduced in 1962, it was the foundation that saved the company and established its reputation for sporty, reliable sedans.

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BMW M10 Engine

The BMW M10 is widely considered the most important engine in BMW’s history. Designed by Baron Alex von Falkenhausen and introduced in 1962, it was the foundation that saved the company and established its reputation for sporty, reliable sedans.

It is a masterpiece of over-engineering—the cast-iron block is so robust that it served as the basis for the most powerful Formula 1 engine ever made.

Listing Details

  • 1,990cc BMW M10 Built by LH Owen
  • Cast Iron Block
  • Aluminum Cylinder Head
  • Wet-Sump Lubrication
  • Weber Carburetor

1. key Specifications

The M10 is an inline-four with a SOHC (Single Overhead Cam) and 8 valves.

  • Production Run: 1962–1988 (26 years).

  • Block Material: Cast Iron (extraordinarily thick cylinder walls).

  • Head Material: Aluminum (crossflow design).

  • Displacement Range: 1.5L to 2.0L.

  • Valvetrain: Chain-driven SOHC (very reliable).

2. Notable Variants

Model Type Power (Approx.) Notable Vehicle
M115 1.5L Carb 75–80 hp BMW 1500 (The “New Class”)
M118 1.8L Carb 90 hp BMW 1800
M05 2.0L Carb 100 hp BMW 2002
M15 2.0L Injection 130 hp BMW 2002tii (Mechanical Fuel Injection)
M31 2.0L Turbo 170 hp BMW 2002 Turbo (Europe’s first turbo car)
M10B18 1.8L L-Jetronic 105 hp BMW E30 318i / E28 518i

3. The Formula 1 Legend: M12/13

The ultimate testament to the M10 is the M12/13 racing engine used in the 1980s.

  • The “Used Block” Myth: Engineers famously used high-mileage M10 street blocks (some with over 100,000 km) for F1 engines. They believed the constant heat-cycling of daily driving “seasoned” the iron, relieving internal stresses.

  • Power Output: In 1983, Nelson Piquet won the F1 Championship with this 1.5L engine. In “qualifying trim,” it ran nearly 5.5 bar (80 psi) of boost, producing an estimated 1,400+ hp.

  • Fun Fact: BMW’s dyno at the time could only measure up to 1,280 hp; the engine simply “maxed out” the needles.

4. Common Issues & Maintenance

Despite its “bulletproof” reputation, a 40- to 60-year-old M10 has a few aging pains:

  • Valve Guide Wear: The most common issue. If the car puffs blue smoke on startup or during deceleration, the valve guides or seals are likely shot.

  • Timing Chain Tensioner: While the chain itself lasts forever, the hydraulic tensioner can fail, leading to “timing chain slap” or rattling.

  • The “Banjo Bolt” Problem: The oil spray bar bolt inside the valve cover can vibrate loose, starving the camshaft of oil. Many owners safety-wire these bolts.

5. Tuning Potential

The M10 is a “Lego” engine. You can easily swap parts between generations:

  • E12/E21 Head Swap: Using a “1.8i” head on a 2.0L block is a popular way to increase compression and flow.

  • Carb Upgrades: Replacing the single Solex with Dual Weber 40 or 45 DCOEs is the classic way to get that iconic “induction growl.”

22 reviews for BMW M10 Engine

  1. Rated 4 out of 5

    Aboubacar Toure (verified owner) –

    Mini Cooper F56 JCW front bumper – all grills included. Fog light harness plugged right in. Great price for OEM quality.

  2. Rated 5 out of 5

    Sara Svensson (verified owner) –

    S55 engine for my M4 – insane deal! Shipping was well-packed and fast. I’ll be back for brakes and suspension next.

  3. Rated 5 out of 5

    Ananya Sharma (verified owner) –

    M78 engine for my E9 2800CS – a restoration miracle! Thanks for preserving BMW history. Packaging was outstanding.

  4. Rated 5 out of 5

    Sara Svensson (verified owner) –

    S65 V8 for my E92 M3 – rod bearings were already done! This site is a goldmine for M car owners. Thank you!

  5. Rated 5 out of 5

    Fatima Al-Zahra (verified owner) –

    BMW B58 engine for my M240i – flawless. Came with all the sensors attached. genuinecarpartsforsale has earned a loyal customer.

  6. Rated 5 out of 5

    Fatou Diarra (verified owner) –

    Getrag 262 gearbox for E12 528i – classic feel preserved. No bearing noise. genuinecarpartsforsale cares about old BMWs.

  7. Rated 4 out of 5

    Mariana Rocha (verified owner) –

    DCT pan and filter kit plus transmission for F10 M5 – complete package. No leaks after install. The customer photos on your site were accurate.

  8. Rated 4 out of 5

    Brice Kouassi (verified owner) –

    E24 635CSi gearbox (Getrag 265 with removable bellhousing) – perfect for my M90 swap. Shifts like new. Highly recommended.

  9. Rated 5 out of 5

    Andrei Popescu (verified owner) –

    S50 engine for my E36 M3 USDM – VANOS works perfectly. Compression across cylinders was even. Very trustworthy vendor.

  10. Rated 4 out of 5

    Sandra Teixeira (verified owner) –

    Style 825M for G80 M3 – fresh off a new car. Zero miles on tires. Unreal deal. Will buy again.

  11. Rated 4 out of 5

    George Papadopoulos (verified owner) –

    The BMW M54 engine I ordered was a perfect match for my E46. Zero issues during installation and the price was unbeatable. Will definitely buy more parts here.

  12. Rated 5 out of 5

    Diego Herrera (verified owner) –

    S65 V8 for my E92 M3 – rod bearings were already done! This site is a goldmine for M car owners. Thank you!

  13. Rated 5 out of 5

    Alain Petit (verified owner) –

    E38 740i sport bumper – the lip is one piece. No cracks from shipping. My 7-series looks 10 years younger. Thanks.

  14. Rated 4 out of 5

    Paula Correia (verified owner) –

    E28 535i brake proportioning valve – hard to find but you had it. Brake bias is now correct. Excellent classic part.

  15. Rated 4 out of 5

    Salimata Coulibaly (verified owner) –

    GS7D36SG DCT for M2 Competition (F87) – crisp and responsive. Came with fresh filters. This site is the real deal for M parts.

  16. Rated 4 out of 5

    Luca Romano (verified owner) –

    N62 engine for my E60 550i – Valve seal issues gone! This site is a lifesaver for BMW V8 owners. Thanks a million.

  17. Rated 5 out of 5

    Luca Romano (verified owner) –

    N52 engine for my E90 330i – no more lifter tick. The engine looked cleaner than the photos. Will buy another for my wife’s car.

  18. Rated 4 out of 5

    Carla Duarte (verified owner) –

    ZF 5HP18 for E34 525i – rebuilt with new solenoids. Shifts like a new car. genuinecarpartsforsale overdelivered again.

  19. Rated 4 out of 5

    Patrick O’Connor (verified owner) –

    S54 engine for my Z3 M Coupe – track-ready! Zero oil leaks. The customer photos on genuinecarpartsforsale helped me decide. Great choice.

  20. Rated 4 out of 5

    David Kim (verified owner) –

    BMW S63 engine for my X6M – absolute beast! Shipping was fast and the customer service helped with my questions. Highly recommend this site.

  21. Rated 4 out of 5

    Thierry Bonnet (verified owner) –

    E70 X5M front bumper – included the lower mesh and fog lights. Direct bolt-on to my X5. genuinecarpartsforsale made my day.

  22. Rated 5 out of 5

    Yuki Tanaka (verified owner) –

    M40 engine for my E34 518i – basic but bulletproof. Shipped fast and included a warranty. Very happy with my purchase.

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