Date registered: Sep 2006
Vehicle: 2004 CLK 240 Coupe
Location: Norfolk. UK
Mentioned: 9 Post(s)
Quoted: 341 Post(s)
For the fans of the M112, here's some technical data from my 2004 archive:
The Mercedes-Benz M112 engine is a V6 automobile piston engine family used in the 2000s. Introduced in 1998, it was the first V6 engine ever built by Mercedes.
A short time later, the related M113 V8 was introduced and used in the CLK 320.
All are built in Bad Cannstatt, Germany except the supercharged AMG C32 AMG, which is assembled in Affalterbach, Germany.
All M112 engines have aluminum engine blocks with a 90Â° vee angle with silicon/aluminum lined cylinders. The aluminum SOHC cylinder heads have 3 valves per cylinder. All use SFI fuel injection with two spark plugs per cylinder. All have forged steel connecting rods, a one-piece cast camshaft, and a magnesium intake manifold. To deal with the inherit vibration problems of a 90 degree V6, a balancer shaft was installed in the engine block between the cylinder banks. This essentially eliminated first and second order vibration problems.
4 valves per cylinder were added in 2004 for the E35 variant used in the new (then) SLK350.