Engine Mercedes M275

The 5.5-liter 12-cylinder Mercedes M275 E55 engine was produced from 2002 to 2013 and was installed on the group’s most expensive models, such as the CL-Class, S-Class or SL-Class. Based on this unit, the M285 engine for Maybach limousines and the 6.0-liter AMG engine were created.

The V12-family includes: M120, M137, M275, M279.

Specifications

Production years 2002-2013
Displacement, cc 5513 (M 275 E 55 AL)
5980 (M 275 E 60 AL)
Fuel system distributed injection
Power output, hp 500 – 517 (M 275 E 55 AL)
612 – 670 (M 275 E 60 AL)
Torque output, Nm 800 – 830 (M 275 E 55 AL)
1000 (M 275 E 60 AL)
Cylinder block aluminum V12
Block head aluminum 36v
Cylinder bore, mm 82 (M 275 E 55 AL)
82.6 (M 275 E 60 AL)
Piston stroke, mm 87 (M 275 E 55 AL)
93 (M 275 E 60 AL)
Compression ratio 9.0
Features no
Hydraulic lifters yes
Timing drive chain
Phase regulator no
Turbocharging Biturbo
Recommended engine oil 5W-40
Engine oil capacity, liter 9.5
Fuel type petrol
Euro standards EURO 4/5
Fuel consumption, L/100 km (for Mercedes S600 2010)
— city
— highway
— combined
21.7
10.1
14.3
Engine lifespan, km ~280 000
Weight, kg 270

The engine was installed on:

  • Mercedes CL-Class C215 in 2002 – 2006; CL-Class C216 in 2006 – 2013;
  • Mercedes S-Class W220 in 2002 – 2005; S-Class W221 in 2006 – 2013;
  • Mercedes SL-Class R230 in 2002 – 2011.

Disadvantages of the M275 E55 engine

  • The most famous problem with this engine is the impressive oil consumption.
  • The cylinder block is aluminum and the cause of the oil burner is usually badass.
  • It is also worth overheating the motor a couple of times and the grease will start to climb out of all the cracks.
  • There are also rather unreliable and expensive blocks of ignition coils for 24 candles.
  • The double-row chain has a not very long resource and is often extended to 200,000 km.

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