Mercedes-Benz Engine
M112
The Mercedes-Benz M112 is a SOHC V6 gasoline piston engine.
- Years
- 1997–2008
- Configuration
- V6
- Fuel
- Gasoline
- Top power
- 245 PS
Mercedes-Benz’s first gasoline V6 — three valves, twin spark, and the quiet replacement for a generation of inline sixes.
Introduced in 1997 as the M104’s successor and a short-bank twin to the new M113 V8, the M112 used a 90° Alusil block, SOHC heads with three valves and two spark plugs per cylinder, forged rods, a magnesium dual-length intake, and a balancer shaft between the banks to tame the odd-fire layout. Displacements spanned 2.4 to 3.7 liters; the 3.2 alone powered everything from the CLK 320 and E 320 to the late R129 SL 320 and the R170 SLK 320.
AMG’s Lysholm-supercharged 3.2 — the M112K in the SLK 32 and C 32 — previewed the forced-induction playbook later applied to the M113. By the mid-2000s the DOHC M272 had begun taking over; the last passenger-car M112s lingered into the late 2000s in vans and late G-Class applications, with commercial variants lasting longer still.
Versions.
Every factory version of the M112.
| Version | Displacement | Bore × Stroke | Compression | Power | Torque |
|---|---|---|---|---|---|
| 112.973 | 3,724 cc | 97 × 84 mm | 10 | 180 kW (241 hp; 245 PS) at 5,750 rpm | 350 N·m (258 lb·ft) at 3,000 rpm |
Applications.
Every model powered by the M112.
- 1999 Mercedes-Benz CLK 320 Cabriolet A208
- 2000–2003 Mercedes-Benz CLK 320 Cabriolet A208
- 2003–2005 Mercedes-Benz CLK 240 Cabriolet A209
- 2003–2005 Mercedes-Benz CLK 320 Cabriolet A209
- 1997–1999 Mercedes-Benz CLK 320 Coupé C208
- 2000–2002 Mercedes-Benz CLK 320 Coupé C208
- 2002–2005 Mercedes-Benz CLK 240 Coupé C209
- 2002–2005 Mercedes-Benz CLK 320 Coupé C209
- 1999–2002 Mercedes-Benz SL 280 Roadster R129
- 1999–2002 Mercedes-Benz SL 320 Roadster R129
- 2000–2004 Mercedes-Benz SLK 320 Roadster R170
- 2001–2004 Mercedes-Benz SLK 32 AMG Roadster R170
- 2003–2006 Mercedes-Benz SL 350 Roadster R230
- 1997–1999 Mercedes-Benz E 240 Wagon S210
- 1997–1999 Mercedes-Benz E 280 LWB Rolling Chassis S210
- 1997–1999 Mercedes-Benz E 280 4MATIC Wagon S210
- 1997–1999 Mercedes-Benz E 320 Wagon S210
- 1997–1999 Mercedes-Benz E 320 4MATIC Wagon S210
- 2000 Mercedes-Benz E 240 Wagon S210
- 2000–2003 Mercedes-Benz E 280 Wagon S210
- 2000–2003 Mercedes-Benz E 280 LWB Rolling Chassis S210
- 2000–2003 Mercedes-Benz E 280 4MATIC Wagon S210
- 2000–2003 Mercedes-Benz E 320 Wagon S210
- 2000–2003 Mercedes-Benz E 320 4MATIC Wagon S210
- 2001–2003 Mercedes-Benz E 240 Wagon S210
- 1997–2001 Mercedes-Benz ML 320 SUV W163
- 2002–2004 Mercedes-Benz ML 320 SUV W163
- 2002–2004 Mercedes-Benz ML 350 SUV W163
- 2003–2004 Mercedes-Benz ML 350 SUV W163
- 2000–2004 Mercedes-Benz C 240 Sedan W203
- 2000–2004 Mercedes-Benz C 320 Sedan W203
- 2001–2004 Mercedes-Benz C 32 AMG Sedan W203
- 2003–2004 Mercedes-Benz C 240 4MATIC Sedan W203
- 2003–2004 Mercedes-Benz C 320 4MATIC Sedan W203
- 2004–2005 Mercedes-Benz C 240 Sedan W203
- 2004–2005 Mercedes-Benz C 240 4MATIC Sedan W203
- 2004–2005 Mercedes-Benz C 320 Sedan W203
- 2004–2005 Mercedes-Benz C 320 4MATIC Sedan W203
- 2003–2008 Mercedes-Benz Vito 119 Van W639
- 2003–2004 Mercedes-Benz Vito 122 Van W639
- 2005–2007 Mercedes-Benz Vito 123 Van W639
- 1995–2002 Mercedes-Benz E 240 Sedan W210
- 2002–2009 Mercedes-Benz E 240 Sedan W211
- 2002–2009 Mercedes-Benz E 280 Sedan W211
- 2002–2009 Mercedes-Benz E 320 Sedan W211
- 1998–2005 Mercedes-Benz S 280 Sedan W220
- 1998–2005 Mercedes-Benz S 320 Sedan W220
- 2002–2005 Mercedes-Benz S 350 Sedan W220
- 1997–2006 Mercedes-Benz G 320 Wagon W463