Mercedes-Benz M113 engine

Mercedes-Benz M113/M155
M113 Kompressor in SL 55 AMG
Overview
Manufacturer	Mercedes-Benz Mercedes-AMG (AMG)
Production	1998–2007
Layout
Configuration	90° V8
Displacement	4.3 L (4,266 cc) 5.0 L (4,966 cc) 5.4 L (5,439 cc)
Cylinder bore	89.9 mm (3.54 in) 97 mm (3.82 in)
Piston stroke	84 mm (3.31 in) 92 mm (3.62 in)
Block material	Aluminium
Head material	Aluminium
Valvetrain	SOHC 3 valves x cyl.
Combustion
Supercharger	AMG-developed with intercooler
Fuel system	Sequential fuel injection
Fuel type	Gasoline
Cooling system	Water-cooled
Output
Power output	279–641 bhp (283–650 PS; 208–478 kW)
Torque output	400–820 N⋅m (295–605 lb⋅ft)
Chronology
Predecessor	Mercedes-Benz M119
Successor	Mercedes-Benz M273, Mercedes-Benz M156 (most AMG applications), Mercedes-Benz M152 (SLK55 AMG)

The Mercedes-Benz M113 (and similar M155) engine is a gasoline-fueled, spark-ignition internal-combustion V8 automobile engine family used in the 2000s. It is based on the similar M112 V6 introduced in 1998, then later phased out in 2007 for the M156 AMG engine and the M273 engine.

The standard Mercedes-Benz M113s were built in Untertürkheim, Germany, while the AMG versions were assembled at AMG's Affalterbach, Germany plant. M113s have aluminum/silicon (Alusil) engine blocks and aluminum SOHC cylinder heads with two spark plugs per cylinder. The cylinder heads have 3 valves per cylinder (two intake, one exhaust). Other features include Sequential fuel injection, iron coated piston skirts, fracture-split forged steel connecting rods, a one-piece cast camshaft, and a magnesium intake manifold.

M113 43[]

The M113 43 is a 4.3 L (4,266 cc) version. Bore and stroke is 89.9 mm × 84 mm (3.54 in × 3.31 in). Power output is 275 hp (279 PS; 205 kW) at 5,750 rpm with 400 N⋅m (295 lb⋅ft) of torque at 3,000 rpm. Output for the variant used in the C43 AMG is uprated to 302 bhp (306 PS; 225 kW) at 5,850 rpm and 410 N⋅m (302 lb⋅ft) at 3,250 rpm.

Applications:

• 1997-2000 C 43 AMG
• 1997-2002 E 430
• 1998-2003 CLK 430
• 1999-2001 ML 430
• 1999-2006 S 430

M113 50[]

The M113 50 is a 5.0 L (4,966 cc) version with a bore and stroke of 97 mm × 84 mm (3.82 in × 3.31 in). Power output is 302 bhp (306 PS; 225 kW) at 5,600 rpm with 460 N⋅m (339 lb⋅ft) of torque at 2,700 to 4,250 rpm. Active Cylinder Control variable displacement technology is optional.

Applications:

• 1998-2008 G 500
• 1999-2006 S 500
• 1999-2006 SL 500
• 2000-2006 CL 500
• 2001-2008 ML 500
• 2002-2006 CLK 500
• 2002-2006 E 500
• 2004-2006 CLS 500
• 2006-2007 R 500
• 2008-2017 SsangYong Chairman W

M113 55[]

The M113 55 is a 5.4 L (5,439 cc) version with the same 97 mm (3.82 in) bore as the M113 50/500 but with a longer 92 mm (3.62 in) stroke developed by Mercedes-AMG. These cars were the first to carry the 55 AMG title. Power output is 342 to 362 hp (347 to 367 PS; 255 to 270 kW) at 5,500 rpm with 510 to 530 N⋅m (376 to 391 lb⋅ft) of torque at 2,800–5,400 rpm. Many popular tuners such as Kleemann USA, Amg Affalterbach developed supercharger systems for this model, mirroring the later M113K design. 396 hp (401 PS; 295 kW) at 5,750 rpm and 520 N⋅m (384 lb⋅ft) at 3,750 rpm of torque in the SLK55 AMG Black Series.

Applications:

• 1997-2000 C 55 AMG
• 1998-2001 SL 55 AMG
• 1998-2002 E 55 AMG
• 2000-2002 S 55 AMG
• 2000-2003 ML 55 AMG
• 2000-2003 CLK 55 AMG
• 2002-2006 CLK 55 AMG
• 2001-2002 CL 55 AMG
• 2002-2003 G 55 AMG
• 2004-2010 SLK 55 AMG
• 2006-2008 SLK 55 AMG Black Series
• 2005-2007 C 55 AMG

M113K - Kompressor[]

The M113 Kompressor is a supercharged and twin-intercooled version of the 5.4 L (5,439 cc) M113. It is commonly referred to as "M113K" - where 'K' stands for Kompressor (supercharger). Power output varies depending on year and model, from 469 bhp (476 PS; 350 kW) for the E 55 AMG at 6,100 rpm to 574 bhp (582 PS; 428 kW) in the 2004-2006 CLK DTM AMG, with 700 to 800 N⋅m (516 to 590 lb⋅ft) of torque at 2,750–4,000 rpm.

Many Mercedes-AMG enthusiasts consider the M113K was the last of the great Kompressor engines used by Mercedes-AMG excluding the Mercedes SLR McLaren. Mercedes-AMG replaced this model with their new 6.2 L naturally aspirated V8, making the transition from 55 AMG to the 63 AMG. Although the new 6.2 L M156 AMG motor produced greater peak HP, many enthusiasts were disappointed by the lack of torque present in the new N/A design.

Applications:

• 2003-2006 CL 55 AMG
• 2002-2006 S 55 AMG
• 2002-2008 SL 55 AMG
• 2003-2006 E 55 AMG
• 2004-2006 CLK DTM AMG
• 2004-2011 G 55 AMG^[1]
• 2004-2006 CLS 55 AMG
• 2005 Fisker Tramonto V8
• 2005 Laraki Fulgura V8

M155[]

M155 engine in Mercedes-Benz SLR McLaren

The M155 is a version of the supercharged 5.4 L (5,439 cc) M113 specifically for the Mercedes-Benz SLR McLaren. Power output is 617 bhp (626 PS; 460 kW) at 6,500 rpm with 780 N⋅m (575 lb⋅ft) of torque at 3,250 rpm. An uprated version with 641 bhp (650 PS; 478 kW) at 6,500 rpm and 820 N⋅m (605 lb⋅ft) of torque at 4,000 rpm is featured in the 722 edition.

Applications:

• 2004 Mercedes-Benz SLR McLaren
• 2006 Mercedes-Benz SLR McLaren 722 Edition

See also[]

• List of Mercedes-Benz engines

References[]