Mercedes-Benz M137 engine

The Mercedes-Benz M137 engine was a naturally aspirated, SOHC 60° V12 engine, with three valves per cylinder. It was built to replace the larger and heavier, yet more powerful, DOHC, four valves per cylinder, naturally aspirated, 6.0 L M120 V12 unit. The M137 was used briefly between 1998 and 2002 for the W220 S-Class and C215 CL-Class.[1] The architecture was similar to M112 and M113 engines and was designed to match the overall dimensions of a V8 unit with an undersquare internal measurements. The crankcase was cast in a lightweight alloy with "Silitec" (silicon/aluminium) cylinder liners to save weight. The new powerplant was 80 kg lighter than its predecessor and offered better fuel consumption thanks to a cylinder deactivation technology. Both displacement variants have 10:1 compression ratio.[2]

Mercedes-Benz M137 engine
Overview
ManufacturerMercedes-Benz
Production1998–2002
Layout
Configuration60° V12
Displacement5.8 L; 353.1 cu in (5,786 cc)
6.3 L; 381.9 cu in (6,258 cc)
Cylinder bore84 mm (3.31 in)
84.5 mm (3.33 in)
Piston stroke87 mm (3.43 in)
93 mm (3.66 in)
Block materialAluminium
Head materialAluminium
ValvetrainSOHC 3 valves x cyl.
Compression ratio10.0:1
Combustion
Fuel systemFuel injection
Fuel typeGasoline
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output270 kW (367 PS; 362 hp)
326 kW (443 PS; 437 hp)
Specific power46.6 kW (63.4 PS; 62.5 hp) per litre
51.7 kW (70.3 PS; 69.3 hp) per litre
Torque output530 N⋅m (391 lb⋅ft)
620 N⋅m (457 lb⋅ft)
Chronology
PredecessorM120
SuccessorM275

The M137 was replaced by the more powerful twin-turbocharged M275 engine.

E58

Mercedes introduced M137 engine in its 5.8-litre form in S 600 and CL 600 models. The internal measurements of 84 by 87 mm (3.3 by 3.4 in) of bore and stroke translated to a total displacement of 5,786 cc (5.8 L; 353.1 cu in). The resulting power output was 270 kW (367 PS; 362 hp) at 5500 rpm and torque figures of 530 N⋅m (391 lb⋅ft) at 4250 rpm.[2]

Applications:

  • 1998–2002 S 600
  • 1998–2002 CL 600

E63 AMG

In 2001 Mercedes and AMG introduced a series of special high-output models equipped with a larger-displacement M137 engine. Cars were available through AMG dealers only and sold to selected European and Asian customers. The 2001 S 63 AMG was produced in only 70 units. The 2001 CL 63 AMG existed in only 26 examples and the rarest of all was the 2002 G 63 AMG with only five units produced.[3][4][5] The total displacement of 6,258 cc (6.3 L; 381.9 cu in) was thanks to an internal measurements of 84.5 by 93 mm (3.3 by 3.7 in).[6] The resulting power output was 326 kW (443 PS; 437 hp) at 5500 rpm and torque figures of 620 N⋅m (457 lb⋅ft) at 4400 rpm.[7][2]

Applications:

See also

References
  1. "Mercedes-Benz M137 engine (1998-2002)". australiancar.reviews. Retrieved 8 January 2020.
  2. "Mercedes-Benz M137 V12 engine". motor-car.net. Retrieved 8 January 2020.
  3. "Silly Fast, Stupid Rare: The 2001 Mercedes-Benz CL63 AMG V12". oppositelock.kinja.com. Retrieved 8 January 2020.
  4. "2003 Mercedes-Benz CL63 AMG". bonhams.com. Retrieved 8 January 2020.
  5. "Mercedes-Benz G 63 AMG Automatic, 444hp, 2002". car.info. Retrieved 8 January 2020.
  6. "MERCEDES BENZ S 63 AMG (W220) 2001". autoevolution.com. Retrieved 8 January 2020.
  7. "Mercedes S63 AMG W220". fantasycars.com. Retrieved 8 January 2020.
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