EJCP.PARTS

MERCEDES-BENZ 3.2 M112

The Mercedes-Benz M112 engine is a gasoline-fueled, 4-stroke, spark-ignition, internal-combustion 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. All are built in Bad Cannstatt, Germany except the supercharged AMG E32 AMG, which is assembled in Affalterbach, Germany. All M112 engines have aluminum engine blocks with a 90° 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, iron-coated aluminum pistons and a magnesium intake manifold. To deal with the 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, see engine balance. A dual-length Variable Length Intake Manifold is fitted to optimise engine flexibility.
The E32 is a 3.2 L (3199 cc) version. Bore remains at 89.9 mm but the engine is stroked to 84 mm. Output is 218 hp ECE (160 kW) to 224 hp ECE (165 kW) at 5700 rpm with 315 Nm (232 ft.lbf) of torque at 3000-4800 rpm. It has fracture-split forged steel connecting rods.
The C32 AMG is a special version of the 3.2 L (3199 cc) C320, fitted with a helical twin-screw supercharger and water-to-air intercooler. The supercharger was developed in conjunction with IHI and features Teflon-coated rotors producing overall boost of 14.5 psi (1 bar). Output is 354 hp ECE (260 kW) at 6100 rpm with 332 ft.lbf (450 Nm) of torque at 3000-4600 rpm.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
3.2 ALUMINUM ALUMINUM SOHC MPFI

ITEMS

BRACKETS EXHAUST MANIFOLD INTAKE MANIFOLD OIL PAN PISTON
SENSORS TIMING COVER TIMING SET VALVE COVER VALVE INFORMATION

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
3.2 SOHC 98-03 E320 ML320
99-03 CLK320
**** 3.2C **** ****
3.2 SOHC 01-05 C320
03-05 CLK320 E320
01-04SLK320
3.2E 3.2C **** 02-05 C-SW
3.2 SOHC 02-04 C32 SLK32 **** **** **** AMG SUPERCHARGED
3.2 SOHC 03-05 C320 **** 3.2C **** AWD
3.2 SOHC 04 CROSSFIRE 3.2A 3.2A **** TO 02/04/04
3.2 SOHC 04-05 CROSSFIRE 3.2B 3.2A **** FROM 02/05/04
3.2 SOHC 05-06 CROSSFIRE 3.2C 3.2B **** SUPERCHARGED
3.2 SOHC 06-08 CROSSFIRE 3.2D 3.2A **** ****

VALVE INFORMATION

MAKE MODEL YEAR RANGE
*** *** ***
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST *** *** *** *** ***
INTAKE *** *** *** *** ***

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