The 6.0-liter 12-cylinder Mercedes M120 E60 engine was produced from 1991 to 2001 and was installed on models such as the S-Class sedan and coupe in the 140th body or the SL-Class R129 roadster. Based on this engine, AMG has developed its power units with a volume of 7.0 and 7.3 liters.
The V12-family includes: M120, M137, M275, M279.
|Displacement, cc||5987 (M 120 E 60)
7291 (M 120 E 73)
|Fuel system||distributed injection|
|Power output, hp||394 – 408 (M 120 E 60)
525 (M 120 E 73)
|Torque output, Nm||570 – 580 (M 120 E 60)
750 (M 120 E 73)
|Cylinder block||aluminum V12|
|Block head||aluminum 48v|
|Cylinder bore, mm||89 (M 120 E 60)
91.5 (M 120 E 73)
|Piston stroke, mm||80.2 (M 120 E 60)
92.4 (M 120 E 73)
|Compression ratio||10.0 (M 120 E 60)
10.5 (M 120 E 73)
|Timing drive||double-row chain|
|Phase regulator||on the intake shafts|
|Recommended engine oil||5W-40|
|Engine oil capacity, liter||9.5|
|Euro standards||EURO 2/3|
|Fuel consumption, L/100 km (for Mercedes S600 1994)
|Engine lifespan, km||~300 000|
The engine was installed on:
- Mercedes CL-Class C140 in 1991 – 1998;
- Mercedes S-Class W140 in 1992 – 1998;
- Mercedes SL-Class R129 in 1992 – 2001.
Disadvantages of the M120 E60 engine
- This is a hot motor and with a lack of cooling, its gaskets quickly collapse.
- And then, through all the collapsed gaskets and seals, grease begins to ooze.
- A lot of headaches for owners are delivered by the Bosch LH-jetronic control system.
- The double-row chain only looks powerful, sometimes it stretches to 150,000 km.
- But most of the complaints are about high fuel consumption and the considerable cost of spare parts.