250px-BMW S85B50 Engine.JPG
Manufacturer BMW
aka Type aka here, not up there
Type Petrol
Production/Introduction produced/introduced from when to when
Status In production
Displacement 5000 cc.
Aspiration Naturally Aspirated
Configuration V
Cylinders 10
Fuel System Injected
Lubrification indicate the engine's type of lubrification
Output N/A hp @ N/A rpm
N/A lb-ft. of torque @ N/A rpm
Bore in inches
Stroke in inches
Compression write compression ratio here
In. Valves 40
Ex. Valves 40
Firing Order Firing order of cylinders
Left Bank Write which cylinders are in this bank (write N/A if it it is inline)
Right Bank (same as above)
Length in inches
Diameter in inches
Width in inches
Height in inches
Dry Weight lbs. / kg.
Fuel Consumption city/highway (mpg & km/L)
Emission/s CO: g/km
CO2: g/km
NOx: g/km
Hydrocarbon: g/km
Particulate: g/km
Chief Engineer write here

The BMW S85B50 is a DOHC 40-valve V10 automotive piston engine found on the E60 M5 and E63 M6. It was inspired by BMW's formula 1 racing division.

The 2008 Wiesmann GT MF 5 will also have the BMW S85 V10 Engine.

Photos[edit | edit source]

Unique Attributes[edit | edit source]

The S85B50 is a high-revving engine designed to utilize power from a wide rev band. Having a redline of 8250 rpm, it achieves over 100 bhp (70 kW)/litre and features a very high compression ratio of 12.0:1, beating the previous M3 of 11.5:1

  • 5.0 Litre V10 engine, 507 hp (378 kW) @ 7750rpm/520 N·m (384 ft·lbf) torque @ 6100rpm
  • Cast aluminum block with bed plate design split at the crankshaft axis.
  • Cast aluminum heads with four valves per cylinder and CNC machined ports and combustion chambers. Valves are actuated though non-rotating inverted bucked cam followers.
  • Oil cooled forged aluminum pistons from Mahle Motorsport
  • Forged steel crankshaft with counterweights
  • Double VANOS system which varies both intake and exhaust cam phasing
  • 10 individual electronically controlled throttles
  • Knock sensors have been eliminated by utilizing the "ionic current" measuring system. Using the ionic current system, engine misfires as well as knock can be measured simultaneously. Combustion quality raises or lowers cylinder pressure. The ionic current is measured by passing a low voltage across the spark plugs immediately following the ignition spark.
  • Quasi-dry sump lubricating system
  • The Digital Motor Electronic (DME) of the S85B50 is encrypted heavily to prevent modifications/hacking to the software.

Criticisms[edit | edit source]

Please make sure to keep critiques in a third-person point of view. If using criticisms from a reputable automotive source, then please make sure to cite the quote.

Worldwide[edit | edit source]

If the vehicle is sold in other markets worldwide, then this is the section to mention that information. Also, mention if the <MODEL> goes by another name in these other markets.

Design quirks and oddities[edit | edit source]

Refer to any pop-culture tidbits about the vehicle in this section.

Awards[edit | edit source]

In 2005, the first year that it was nominated, the S85B50 won four different International Engine of the Year awards in the following 4 categories:

  1. International Engine of the Year, BMW 5.0 Litre V10 (M5,M6)
  2. Best Performance Engine
  3. Best New Engine

In 2006 the S85B50 again won several International Engine of the Year awards, winning in the following 3 categories:

  1. International Engine of the Year, BMW 5.0 Litre V10 (M5,M6)
  2. Best Performance Engine
  3. Best Above 4.0 Litre

In 2007 the S85B50 again won several International Engine of the Year awards, winning in the following 2 categories:

  1. Best Performance Engine
  2. Best Above 4.0 Litre

See also[edit | edit source]


The BMW Group

BMW | Rolls-Royce | MINI

Current: 1 Series · 3 Series · 5 Series · 6 Series · 7 Series · Hydrogen 7 · Z4 · X1 · X3 · X5 · X6 · 5 Series GT · Megacity EV

Bmw M logo.pngM Cars: M1 · M3 · M5 · M6 · M Coupe · M Roadster · M535i · X5M · X6M

Bmw i logo.jpg BMW i: i3 · i5 · i7 ·i8 · iX3 · iX5

Historic: 507 ·Z8 · Z3 · Z1 · 503 · 328 · Isetta · 8 Series · E3 · · · · · · · · · ·

Racing: M3 GTR · V12 LMR · V12 LM98 · 320 Turbo · 3.0 CSL · 700 RS · F1.09 · Z4 GT3 · M3 GT2 · Z4 GTE · M6 GTLM · M8 GTE

Concept: Nazca M12 · Nazca C2 · Nazca C2 Spyder · Z11 · Z13 · Z18 · Z07 Concept · Z9 Gran Turismo Concept · Z9 Convertible Concept · X Coupe · CS1 Concept · xActivity Concept · H2R · Mille Miglia · M3 Concept · CS Concept · Just 4/2 Concept · Concept Z4 Coupe · Turbo Concept · X6 Sports Activity Coupe Concept · Concept X6 Active Hybrid · Concept 1-Series tii · M1 Homage Concept · GINA Light Visionary Concept · M8 Prototype · 750i ActiveHybrid Concept · X1 Concept · Hydrogen Powered Salt Flat Racer Concept · 5 Series Gran Turismo Concept · Z Vision Concept · E1 Concept · Vision EfficientDynamics Concept · SIMPLE Concept · Concept ActiveE · ActiveHybrid5 Concept · Concept Gran Coupé · Concept 6 Series Coupé

iDrive · DesignworksUSA · ConnectedDrive · BMW Welt · Franz Josef Popp · Max Friz · BMW i · BMW M · BMW Motorrad

Karl Friedrich Rapp and Camillo Castiglioni Corporate website Independent

External Links[edit | edit source]

Please include any external sites that were used in collaborating this data, including manufacturer sites, in this section.

Community content is available under CC-BY-SA unless otherwise noted.