Mercedes-Benz M156 Engine
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Mercedes-Benz M156 Engine
Mercedes-Benz M156 engine
Mercedes-Benz M156 Engine 02.JPG
Overview
ManufacturerMercedes-AMG
Layout
ConfigurationNaturally aspirated 90° V8
Displacement6.2 L (6,208 cc)
Cylinder bore102.2 mm (4.02 in)
Piston stroke94.6 mm (3.72 in)
ValvetrainDOHC 4 valves x cyl.
Compression ratio11.3:1
RPM range
Redline8,000
Combustion
Fuel systemFuel injection
Fuel typeGasoline
Oil system
Cooling systemWater-cooled
Output
Power output451-622 hp (457-631 PS; 336-464 kW)
Torque output630-650 N?m (465-479 lb?ft)
Chronology
PredecessorMercedes-Benz M113 engine
SuccessorMercedes-Benz M157 engine (5.5L)
Mercedes-Benz M176/M177/M178 engine (4.0L)

The M156 is the first automobile V8 engine designed autonomously by Mercedes-Benz subsidiary Mercedes-AMG, as previous AMG engines have always been based on original Mercedes engines. The engine was designed to be a naturally aspirated racing unit, and is also used in a number of high-performance AMG-badged Mercedes-Benz models.

M156

The M156 displaces 6,208 cc (6.2 L; 378.8 cu in) and shares very little with other Mercedes-Benz engine families like the M155. The bore spacing, block design, and other features are unique to the AMG engine.

Although this engine displaces 6.2 litres, it is marketed as the "6.3" to commemorate Mercedes' famed 6.3 L M100 engine, its first production V8.

The engine uses a bore and stroke of 102.2 mm × 94.6 mm (4.02 in × 3.72 in). When introduced in the 2007 CLK63 AMG, output was 475 hp (482 PS; 354 kW) at 6,800 rpm with 630 N?m (465 lb?ft) of torque at 5,200 rpm. For the 2007 CLS63 and E63, output was 507 hp (514 PS; 378 kW) at 6,800 rpm with 630 N?m (465 lb?ft) of torque at 5,200 rpm. The 2007 ML63 had 503 hp (510 PS; 375 kW), and the 2008 C63 had 451 hp (457 PS; 336 kW). The final 2015 C63 had 500 hp (507 PS; 373 kW).

The engine, however, has been uprated to produce 518 hp (525 PS; 386 kW) and 465 lb?ft (630 N?m) of torque in the late S 63, E 63, SL 63, CLS 63 & CL 63 models[1].

Applications:

M156 lawsuit

In 2011, a class action lawsuit was filed in United States District Court in New Jersey against Daimler AG, Mercedes-Benz, Mercedes-AMG for alleged defects in the M156 engine contained in AMG vehicles built in 2007-2011 model years leading to premature wear. The plaintiff claimed the combination of cast nodular iron camshafts and 9310 grade steel valve lifters contributed to the premature wear, but the defendants had known about the defect since 2007.[1]

The lawsuit lasted approximately 14-months. In November, 2012, litigation came to a halt when the New Jersey District Court dismissed the plaintiffs' first amended complaint for lack of standing. The plaintiffs were given the opportunity to further amend their complaint to show that they had standing to sue, but plaintiffs made no further filings with the Court. On January 7, 2013, the Court signed an order closing the case. [2]

M159

The M159 is a version used in Mercedes-Benz SLS AMG and current AMG GT3 racecar. Compared to the standard AMG engine, the SLS's engine includes an all-new intake system, reworked valvetrain and camshafts, the use of flow-optimised tubular steel headers and dethrottling of the exhaust system. The engine also utilizes a dry-sump lubrication system to lower the center of gravity of the car.[3]

Engine code Years Power output Torque Redline
M159 2010-2012 571 PS (420 kW; 563 hp) at 6,800 rpm 650 N?m (479 lb?ft) at 4,750 rpm 7,200 rpm
M159 2013-2015 591 PS (435 kW; 583 hp) at 6,800 rpm 650 N?m (479 lb?ft) at 4,750 rpm 7,200 rpm?
M159 2013-2014 631 PS (464 kW; 622 hp) at 7,400 rpm 635 N?m (468 lb?ft) at 5,000 rpm 8,000 rpm

See also

References

  1. ^ Class action lawsuit to be filed against Mercedes alleges AMG V8 defects
  2. ^ Regar, Jacob. "Update: Mercedes Benz AMG Class Action for the M156 V8 Engine". jacobregarlaw.com/Blog. Jacob Regar Law. Retrieved 2013.
  3. ^ "Mercedes-Benz SLS AMG: fascination and high tech: The new 'Gullwing' from Mercedes-Benz". Archived from the original on 2016-01-13. Retrieved .

General

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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