Mercedes Benz Classics: Owners Operation, Service, and Repair Workshop Manuals

Mercedes M112 Petrol Engine Manuals

The Mercedes-Benz M112 is a 90° V6 petrol engine with an aluminum engine block and 2.4 L, 2.6 L, 2.8 L, 3.2 L and 3.7 L displacement versions produced from 1997-2005

M112 Variations: E24, E26, E28, E32, E32ML, E37


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Download: G-Class M112 E32 Engine Service Manual

Mercedes M112 M113 Engine Service Repair Manual

  • Mercedes Benz M112 W463 Engine Service Manual
  • Application: M112 E32 W463 G320 1997-2006
  • Download: 55.8mb, 470 pages
    Format: .pdf document

USD $29.95

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Other M112 E32 Applications Manual Can Be Used For:

1997-2006 G320, 2000–2004 C320, 1998–2005 E320, 1998–2005 S320, 1998–2003 ML320, 1998–2005 CLK320, 2000–2003 SLK320, 2010–2015 Viano 3.0/Vito 119 W639

G-Class M112 W463 Applications

Chassis # WB: Style: Engine CCM kW HP Torque Produced
463.233 lwb estate M112 E32 3199cc 158 215 300Nm 1997-2000
W463 G 320 M112 Petrol Models          
463.209 swb cabriolet M112 E32 3199cc 260 350 450Nm 1997-2000
463.232 swb estate M112 E32 3199cc 260 350 450Nm 1997-2000
463.233 lwb estate M112 E32 3199cc 260 350 450Nm 1997-2000
W463 G 320 M112 Petrol Models          
463.250 swb cabriolet M112 E32 3199cc 260 350 450Nm 2001-2006
463.244 swb estate M112 E32 3199cc 260 350 450Nm 2001-2006
463.245 lwb estate M112 E32 3199cc 260 350 450Nm 2001-2006

Download: R170 M111 M112 Engine Service Manual

Mercedes R170 M111 M112 Engines Service ManualR170 M111 M112 Engine Service and Repair
Applications: R170 1986-2004
Models: SLK 230 Kompressor | SLK 320 | SLK 32 AMG
Download: 123mb, 1,982 pages, .pdf

USD $19.95

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Download: E-Class W210 W211 Multi Engine Service Manual

Mercedes M111 M112 M113 M271 M272 Engine Service ManualMercedes E-Class Series W210 W211 2000-2006
Engines: M111 M112 M113 M271 M272
Download: 22.2 mb, 84 pages
Format: bookmarked .pdf document

USD $19.95

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Download: M112 Engine Electronic Parts Catalog

Mercedes M112 Engine Electronic Parts Catalog EPC

  • M112 Engine Electronic Parts Catalog
  • Application: M112 CLK320 and others
  • Download: 24.7mb, 90 pages
    Format: .pdf document

USD $9.95

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M112 Engine Technical Data

The Mercedes-Benz M112 engine is a gasoline-fueled, 4-stroke, spark-ignition, internal-combustion V6 automobile engine used in the late 90's thru 2000s. Introduced in 1998, it was the first V6 engine ever built by Mercedes. It was followed by the related M113 V8

These M112 engines have an aluminum engine block with a 90° V6 orientation and silicon/aluminum lined cylinders. Features include aluminum SOHC cylinder heads with 3 valves per cylinder, forged steel connecting rods, a one-piece cast camshaft, iron-coated aluminum pistons, magnesium intake manifold and sequential fuel injection with two spark plugs per cylinder.

To deal with the vibration problems of a 90 degree V6, a balance shaft was installed in the engine block between the cylinder banks eliminating first and second order vibration problems. A Variable Length Intake Manifold is fitted to optimize engine flexibility.

Variant Vehicle   CCM kW HP  RPM Nm Comp Bore Stroke
M112.910 W202 C240 2.8 E24 2398 125 170 5500 240 9.8:1 83.2 72.5
M112.911 W210 CLK320 E24 2398 125 170 5500 240 9.8:1 83.2 72.5
M112.912 W203 W209 CLK E26 2597 125 170 5500 240 10.5:1 89.9 68.2
M122.913 W210 W211 E26 2597 130 177 5700 240 10.5:1 89.9 68.2
M112.914 W210 E240 2.4 E26 2597 125 170 5500 240 10.5:1 89.9 68.2
M112.915 E240 2.6 E26                
M112.916 W203 C240 E26     170          
M112.917 W211 E26 2597 130 177 5700 240 10.5:1 89.9 68.2
M112.920 W202 E240 2.8 E28 2799 145 197 5800 265 10:1 89.9 72.5
M112.921 E280 S280 E28 2799 150 204 5700 270 10:1 89.9 72.5
M112.922 W211 E28 2496 150 204 6100 245 11.2:1    
M112.923 R129 SL E28 2799 150 204 5700 270 10:1 89.9 72.5
M112.940 E320 3.2 4-Matic
W208 CLK A208
E32 3199 160     315 10:1 89.9 84
M112.941 W210 G320 3.2 E32 3199 165     315 10:1 89.9 84
M112.942 W163 ML E32 3199 160     310 10:1 89.9 84
M112.943 G500 5.0 R129 SL E32 3199 165     315 10:1 89.9 84
M112.944 W220 S320 E32 3199 165     315 10:1 89.9 84
M112.945 G55 5.5 AMG E32                
M112.946 W203 E32 3199 160     310 10:1 89.9 84
M112.947 SLK R170 E32 3199 160     310 10:1 89.9 84
M112.949 W210 W211 E32 3199 165     315 10:1 89.9 84
M112.951 W639 E32 3199 140     270 10:1 89.9 84
M112.953 W203 E32 3199 160     310 10:1 89.9 84
M112.954 W211 E32 3199 165     315 10:1 89.9 84
M112.955 W209 CLK E32 3199 160     310 10:1 89.9 84
M112.960 32AMG SLK R170
W203 C203
E32 3199 260     450 9:1 89.9 84
M112.961 W203 C32K AMG E32                
M112.970 W163 ML E37 3724 173     345 10:1 97 84
M112.972 W220 S350 E37 3724              
M112.973 SL350 R230 E37 3724              
M112.975 W220 E37 3724 180     350 10:1 97 84
M112.976 W639 Viano E37 3724 170     345 10:1 97 84

Mercedes M112 E32 Service Repair Workshop Manual

M112 Specifications

Disp. 2.4 L (2,398 cc), 2.6 L (2,597 cc), 2.8 L (2,799 cc), 3.2 L (3,199 cc), 3.7 L (3,724 cc)
Bore 83.2 mm (3.28 in), 89.9 mm (3.54 in), 97 mm (3.82 in)
Stroke 68.2 mm (2.69 in), 73.5 mm (2.89 in), 84 mm (3.31 in)


M112 Variant Applications and Engine Codes

Engine Variant Vehicle Series and Model Years Built
M112.910 W202 1997-2000
M112.911 W210 1995-2000
M112.912 W209 CLK 2002-2005
M112.912 W203 2000-2004
M112.913 W210 2002-2003
M112.913 W211 2002-2006
M112.914 W210 2000-2002
M112.917 W211 2003
M112.920 W202 1996-2000
M112.921 (E280) W210 1996-2002
M112.921 (S280) W220 S280 1998-2006
M112.? ML320 1998–2003
M112.921 (S280) W220 S280 1998-2006
M112.922 W211 2007
M112.? G320 1997-200?
M112.923 R129 SL 1997-2001
M112.940 W208 CLK A208 Kabrio 1997-2003
M112.940 W208 CLK 1997-2003
M112.941 W210 1997-2002
M112.942 W163 ML 1997-2002
M112.943 R129 SL 1997-2001
M112.? E320 1998-2005
M112.? S320 1998-2005
M112.944 W220 S320 1998-2006
M112.? SLK320 2000-2003
M112.946 W203 2000-2004
M112.947 R170 SLK 2000-2004
M112.949 W211 2002-2005
M112.949 W210 2002
M112.951 W639 2003-2008
M112.? C320 2000-2004
M112.953 W203 2002-2004
M112.954 W211 2003
M112.955 W209 CLK320 2002-2005
M112.960 (32 AMG) R170 SLK 2001-2004
M112.960 (32 AMG) W203 2001-2004
M112.960 (32 AMG) C203 SportCoupé 2001-2007
M112.970 W163 ML 2002-2005
M112.975 W220 2002-2005
M112.976 W639 Viano 2002-2005
M112.? Chrysler Crossfire 2003-2008

M112 - E24

The E24 is a 2.4 L (2,398 cc) version. Bore and stroke is 83.2 mm × 73.5 mm (3.28 in × 2.89 in). The engine produces 168 hp between 5500-6000 rpm and 166 lb.ft of torque between 3000-5500 rpm. The compression ratio is 10.0:1.

Applications:

  • 1997-2002 C240
  • 1998-2002 CLK240
  • 1998-2002 E240

M112 - E26

The E26 is a 2.6 L (2,597 cc) version. Bore and stroke is 89.9 mm × 68.2 mm (3.54 in × 2.69 in). Output is 174 hp at 5,500 rpm with 177 lb.ft of torque at 4,500 rpm. The compression ratio is raised to 11.0:1.

Applications:

  • 2002–2005 C240
  • 2000–2003 E240
  • 2002–2005 CLK240

M112 - E28

The E28 is a 2.8 L (2,799 cc) version. Bore and stroke is 89.9 mm × 73.5 mm (3.54 in × 2.89 in). It produces 204 hp at 5,700 rpm and 199 lb.ft of torque between 3,000-5,000 rpm. The compression ratio is 10.0:1.

Applications:

  • 1998–2000 C280
  • 1998–2006 S280
  • 1998–2004 E280

M112 - E32

The E32 is a 3.2 L (3,199 cc) version. Bore and stroke is 89.9 mm x 84 mm (3.54 in x 3.31 in). It produces 215-224 hp at 5,700 rpm with 232 lb.ft of torque at 3,000-4,800 rpm. The compression ratio is 10.0:1.

Applications:

  • 2000–2004 C320
  • 1998–2005 E320
  • 1997-2006 G320
  • 1998–2005 S320
  • 1998–2003 ML320
  • 1998–2005 CLK320
  • 2000–2003 SLK320
  • 2010–2015 Viano 3.0/Vito 119 (W639)

M112 - E32 ML

The Supercharged Mercedes-AMG C32/SLK32 engine

The E 32 ML is a special version of the 3.2 L (3,199 cc), fitted with a helical twin-screw type supercharger and water-to-air intercooler. Output is 349 bhp at 6,100 rpm with 332 lb.ft of torque at 3,000-4,600 rpm. The compression ratio is 9.0:1.

Applications:

  • 2001–2003 C32 AMG
  • 2001–2003 SLK32 AMG

M112 - E37

The E37 is a 3.7 L (3,724 cc) version. Its stroke and bore are 89.9 mm x 97 mm (3.54 in x 3.82 in). Output is 232 to 241 hp at 5,750 rpm with 254 lb.ft of torque at 3,000-4,500 rpm. The compression ratio is 10.0:1.

Applications:

  • 2003–2005 ML350
  • 2003–2006 S350
  • 2003-2006 SL350
  • 2004-2008 V350

Mercedes M112 Motor

M112 Engine Resources

Mercedes M112 Engine Drivetrain