
Mercedes M102
The most famous engine problem is camshaft wear at 150,000 km.
Mercedes-Benz C-Class is a series of German compact executive class cars produced since 1995 by Mercedes-Benz. Since 2014, the 4th generation of the model has been produced. The main car production is located in the German cities of Bremen and Sindelfingen. In addition, the car is assembled in the United States and affiliated factories located in other countries. Until 1997, the car series was the smallest in the manufacturer’s lineup. The 1st generation model is essentially a modified version of the previously produced Mercedes-Benz W201 (190).
The Mercedes-Benz C-Class was offered with 35 engines since 1982 (24 petrol, 11 diesel). Displacement ranges from 1.5 to 6.2 liters, power output from 72 to 639 hp. All of them use a timing chain. 17 are turbocharged. The longest rated lifespan belongs to the Mercedes M104 E28 (about 500,000 km).
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| Mercedes-Benz C-Class W201 1982–1993 | |||||||
| Mercedes M102 | 1982–1993 | 1.8–2.3 L R4 | 86–136 hp | petrol | chain | 4.5–5 L | ~400,000 km |
| Mercedes OM601 | 1983–1993 | 2.0–2.3 L R4 | 72–98 hp | diesel, NA / turbo | chain | 6 L | ~500,000 km |
| Mercedes OM602 | 1985–1993 | 2.5–2.9 L R5 | 84–129 hp | diesel, NA / turbo | chain | 7 L | ~450,000 km |
| Mercedes-Benz C-Class W202 1993–2001 | |||||||
| Mercedes OM604 | 1993–1999 | 2.0–2.2 L R4 | 88–95 hp | diesel | chain | 6.5 L | ~450,000 km |
| Mercedes OM605 | 1993–2001 | 2.5 L R5 | 113–150 hp | diesel, NA / turbo | chain | 6.5 L | ~400,000 km |
| Mercedes M111 E20 | 1993–2001 | 2.0 L R4 | 136–192 hp | petrol | chain | 5.5 L | ~420,000 km |
| Mercedes M111 E18 | 1993–2000 | 1.8 L R4 | 122 hp | petrol | chain | 5.5 L | ~400,000 km |
| Mercedes M104 E28 | 1993–1997 | 2.8 L R6 | 193–197 hp | petrol | chain | 7 L | ~500,000 km |
| Mercedes OM601 | 1993–1995 | 2.0–2.3 L R4 | 72–98 hp | diesel, NA / turbo | chain | 6 L | ~500,000 km |
| Mercedes M111 E22 | 1993–1996 | 2.2 L R4 | 150 hp | petrol | chain | 5.5 L | ~430,000 km |
| Mercedes M111 E23 | 1996–2000 | 2.3 L R4 | 143–193 hp | petrol | chain | 5.5 L | ~450,000 km |
| Mercedes M112 E28 | 1996–2000 | 2.8 L V6 | 197–204 hp | petrol | chain | 7.5 L | ~330,000 km |
| Mercedes M112 E24 | 1996–2000 | 2.4 L V6 | 170 hp | petrol | chain | 7.5 L | ~275,000 km |
| Mercedes M113 E43 | 1997–2001 | 4.3 L V8 | 272–306 hp | petrol | chain | 8 L | ~300,000 km |
| Mercedes OM611 | 1997–2001 | 2.1–2.2 L R4 | 82–143 hp | diesel, turbo | chain | 6.5–8.5 L | ~500,000 km |
| Mercedes M112 E26 | 2000–2001 | 2.6 L V6 | 170–177 hp | petrol | chain | 7.5 L | ~300,000 km |
| Mercedes-Benz C-Class CL 203 2000–2004 | |||||||
| Mercedes OM611 | 2000–2004 | 2.1–2.2 L R4 | 82–143 hp | diesel, turbo | chain | 6.5–8.5 L | ~500,000 km |
| Mercedes-Benz C-Class W203 2000–2007 | |||||||
| Mercedes M112 E32 | 2000–2005 | 3.2 L V6 | 190–354 hp | petrol | chain | 7.5 L | ~350,000 km |
| Mercedes OM612 | 2000–2007 | 2.7 L R5 | 156–170 hp | diesel, turbo | chain | 7.5 L | ~350,000 km |
| Mercedes M111 E20 | 2000–2002 | 2.0 L R4 | 136–192 hp | petrol | chain | 5.5 L | ~420,000 km |
| Mercedes M112 E26 | 2000–2005 | 2.6 L V6 | 170–177 hp | petrol | chain | 7.5 L | ~300,000 km |
| Mercedes OM611 | 2000–2003 | 2.1–2.2 L R4 | 82–143 hp | diesel, turbo | chain | 6.5–8.5 L | ~500,000 km |
| Mercedes M111 E23 | 2001–2002 | 2.3 L R4 | 143–193 hp | petrol | chain | 5.5 L | ~450,000 km |
| Mercedes M271 E18 | 2002–2007 | 1.8 L R4 | 122–204 hp | petrol, turbo | chain | 5.5 L | ~320,000 km |
| Mercedes OM646 | 2003–2007 | 2.1 L R4 | 88–170 hp | diesel, turbo | chain | 6.5–9.5 L | ~400,000 km |
| Mercedes M272 E35 | 2005–2007 | 3.5 L V6 | 258–292 hp | petrol | chain | 8 L | ~320,000 km |
| Mercedes M272 E30 | 2005–2007 | 3.0 L V6 | 231 hp | petrol | chain | 8 L | ~300,000 km |
| Mercedes M272 E25 | 2005–2007 | 2.5 L V6 | 204 hp | petrol | chain | 8 L | ~275,000 km |
| Mercedes OM642 | 2005–2007 | 3.0 L V6 | 184–265 hp | diesel, turbo | chain | 8–12 L | ~450,000 km |
| Mercedes-Benz C-Class CL203 2002–2011 | |||||||
| Mercedes M271 E18 | 2002–2008 | 1.8 L R4 | 122–204 hp | petrol, turbo | chain | 5.5 L | ~320,000 km |
| Mercedes M271 E16 | 2004–2006 | 1.6 L R4 | 129–156 hp | petrol, turbo | chain | 5.5 L | ~300,000 km |
| Mercedes M272 E25 | 2004–2011 | 2.5 L V6 | 204 hp | petrol | chain | 8 L | ~275,000 km |
| Mercedes M272 E35 | 2005–2011 | 3.5 L V6 | 258–292 hp | petrol | chain | 8 L | ~320,000 km |
| Mercedes-Benz C-Class W204 2007–2015 | |||||||
| Mercedes M271 E18 | 2007–2014 | 1.8 L R4 | 122–204 hp | petrol, turbo | chain | 5.5 L | ~320,000 km |
| Mercedes M272 E35 | 2007–2011 | 3.5 L V6 | 258–292 hp | petrol | chain | 8 L | ~320,000 km |
| Mercedes M272 E30 | 2007–2011 | 3.0 L V6 | 231 hp | petrol | chain | 8 L | ~300,000 km |
| Mercedes M272 E25 | 2007–2009 | 2.5 L V6 | 204 hp | petrol | chain | 8 L | ~275,000 km |
| Mercedes OM646 | 2007–2009 | 2.1 L R4 | 88–170 hp | diesel, turbo | chain | 6.5–9.5 L | ~400,000 km |
| Mercedes OM642 | 2007–2014 | 3.0 L V6 | 184–265 hp | diesel, turbo | chain | 8–12 L | ~450,000 km |
| Mercedes M156 | 2007–2015 | 6.2 L V8 | 457–525 hp | petrol | chain | 9 L | ~250,000 km |
| Mercedes M271 E16 | 2008–2010 | 1.6 L R4 | 129–156 hp | petrol, turbo | chain | 5.5 L | ~300,000 km |
| Mercedes OM651 | 2008–2015 | 1.8–2.1 L R4 | 95–204 hp | diesel | chain + gears | 6.5 L | ~400,000 km |
| Mercedes M276 DE35 | 2011–2014 | 3.5 L V6 | 252–333 hp | petrol, NA / turbo | chain | 8 L | ~300,000 km |
| Mercedes M274 | 2012–2015 | 1.6–2.0 L R4 | 129–333 hp | petrol, turbo | chain | 6–7 L | ~300,000 km |
| Mercedes-Benz C-Class W205 2014–2023 | |||||||
| Mercedes OM626 | 2014–2018 | 1.6 L | diesel | ||||
| Mercedes OM651 | 2014–2018 | 1.8–2.1 L R4 | 95–204 hp | diesel | chain + gears | 6.5 L | ~400,000 km |
| Mercedes M274 | 2014–2020 | 1.6–2.0 L R4 | 129–333 hp | petrol, turbo | chain | 6–7 L | ~300,000 km |
| Mercedes M276 DE30 | 2015–2021 | 3.0 L V6 | 272–367 hp | petrol, turbo | chain | 8 L | ~250,000 km |
| Mercedes M177 | 2015–2023 | 4.0 L V8 | 476–639 hp | petrol, turbo | chain | 9 L | ~250,000 km |
| Mercedes OM654 | 2018–2021 | 1.6–2.0 L R4 | 116–265 hp | diesel, turbo | chain | 6.5 L | ~240,000 km |
| Mercedes M264 | 2018–2021 | 1.5–2.0 L R4 | 156–299 hp | petrol, turbo | chain | 6.6 L | ~260,000 km |
| Mercedes-Benz C-Class W206 2021–present | |||||||
| Mercedes OM654 | 2021–present | 1.6–2.0 L R4 | 116–265 hp | diesel, turbo | chain | 6.5 L | ~240,000 km |
| Mercedes M254 | 2021–present | 1.5–2.0 L R4 | 170–258 hp | petrol, turbo | chain | 6.6 L | ~260,000 km |
| Mercedes M139 | 2022–present | 2.0 L R4 | 365–476 hp | petrol, turbo | chain | 5.5 L | ~250,000 km |
Mercedes-Benz C-Class W201 (1982–1993): Mercedes M102, Mercedes OM601 and Mercedes OM602; Mercedes-Benz C-Class W202 (1993–2001): Mercedes OM604, Mercedes OM605, Mercedes M111 E20, Mercedes M111 E18, Mercedes M104 E28, Mercedes OM601, Mercedes M111 E22, Mercedes M111 E23, Mercedes M112 E28, Mercedes M112 E24, Mercedes M113 E43, Mercedes OM611 and Mercedes M112 E26; Mercedes-Benz C-Class CL 203 (2000–2004): Mercedes OM611; Mercedes-Benz C-Class W203 (2000–2007): Mercedes M112 E32, Mercedes OM612, Mercedes M111 E20, Mercedes M112 E26, Mercedes OM611, Mercedes M111 E23, Mercedes M271 E18, Mercedes OM646, Mercedes M272 E35, Mercedes M272 E30, Mercedes M272 E25 and Mercedes OM642; Mercedes-Benz C-Class CL203 (2002–2011): Mercedes M271 E18, Mercedes M271 E16, Mercedes M272 E25 and Mercedes M272 E35; Mercedes-Benz C-Class W204 (2007–2015): Mercedes M271 E18, Mercedes M272 E35, Mercedes M272 E30, Mercedes M272 E25, Mercedes OM646, Mercedes OM642, Mercedes M156, Mercedes M271 E16, Mercedes OM651, Mercedes M276 DE35 and Mercedes M274; Mercedes-Benz C-Class W205 (2014–2023): Mercedes OM626, Mercedes OM651, Mercedes M274, Mercedes M276 DE30, Mercedes M177, Mercedes OM654 and Mercedes M264; Mercedes-Benz C-Class W206 (2021–present): Mercedes OM654, Mercedes M254 and Mercedes M139.
By rated service life the most durable Mercedes-Benz C-Class engines are: Mercedes M104 E28 — about 500,000 km; Mercedes OM601 — about 500,000 km; Mercedes OM611 — about 500,000 km. Actual lifespan depends heavily on maintenance and oil change intervals.
Engine oil capacity with filter: Mercedes M102 — 4.5–5 L (5W-40); Mercedes M104 E28 — 7 L (5W-40); Mercedes M111 E18 — 5.5 L (5W-40); Mercedes M111 E20 — 5.5 L (5W-40); Mercedes M111 E22 — 5.5 L (5W-40); Mercedes M111 E23 — 5.5 L (5W-40); Mercedes M112 E24 — 7.5 L (5W-30); Mercedes M112 E26 — 7.5 L (5W-30); Mercedes M112 E28 — 7.5 L (5W-30); Mercedes M112 E32 — 7.5 L (5W-30); Mercedes M113 E43 — 8 L (5W-40); Mercedes M139 — 5.5 L (0W-40); Mercedes M156 — 9 L (0W-40); Mercedes M177 — 9 L (0W-40); Mercedes M254 — 6.6 L (5W-30); Mercedes M264 — 6.6 L (5W-30); Mercedes M271 E16 — 5.5 L (5W-30); Mercedes M271 E18 — 5.5 L (5W-30); Mercedes M272 E25 — 8 L (5W-30); Mercedes M272 E30 — 8 L (5W-30); Mercedes M272 E35 — 8 L (5W-30); Mercedes M274 — 6–7 L (5W-30, 5W-40); Mercedes M276 DE30 — 8 L (5W-30); Mercedes M276 DE35 — 8 L (5W-30); Mercedes OM601 — 6 L (5W-40); Mercedes OM602 — 7 L (5W-40); Mercedes OM604 — 6.5 L (5W-40); Mercedes OM605 — 6.5 L (5W-40); Mercedes OM611 — 6.5–8.5 L (5W-40, MB 229.1); Mercedes OM612 — 7.5 L (5W-30); Mercedes OM642 — 8–12 L (5W-30, MB 228.51/229.51); Mercedes OM646 — 6.5–9.5 L (5W-40, MB 229.5 / 229.51); Mercedes OM651 — 6.5 L (5W-30); Mercedes OM654 — 6.5 L (5W-30).
Timing chain: Mercedes M102, Mercedes M104 E28, Mercedes M111 E18, Mercedes M111 E20, Mercedes M111 E22, Mercedes M111 E23, Mercedes M112 E24, Mercedes M112 E26, Mercedes M112 E28, Mercedes M112 E32, Mercedes M113 E43, Mercedes M139, Mercedes M156, Mercedes M177, Mercedes M254, Mercedes M264, Mercedes M271 E16, Mercedes M271 E18, Mercedes M272 E25, Mercedes M272 E30, Mercedes M272 E35, Mercedes M274, Mercedes M276 DE30, Mercedes M276 DE35, Mercedes OM601, Mercedes OM602, Mercedes OM604, Mercedes OM605, Mercedes OM611, Mercedes OM612, Mercedes OM642, Mercedes OM646, Mercedes OM651 and Mercedes OM654; gear drive: Mercedes OM651.
Yes: Mercedes OM601, Mercedes OM602, Mercedes OM604, Mercedes OM605, Mercedes OM611, Mercedes OM612, Mercedes OM626, Mercedes OM642, Mercedes OM646, Mercedes OM651 and Mercedes OM654.

The most famous engine problem is camshaft wear at 150,000 km.

These diesel engines are very reliable, provided that high-quality fuel and oil are used.

Strong vibrations of this diesel engine adversely affect the life of its supports.

The main problem of power units of this series is numerous oil leaks.

Most of all, grease leaks will cause you problems, and their number grows with mileage.

Most of all, grease leaks will cause you problems, and their number grows with mileage.

Most of all, grease leaks will cause you problems, and their number grows with mileage.

For iron, the motors are very reliable and have a resource of about 400 - 500 thousand km.

Increased vibrations in the operation of the motor negatively affect the resource of its supports.

Most of all, grease leaks will cause you problems, and their number grows with mileage.

The signature failure of this series of engines is the destruction of the crankshaft pulley.

The signature failure of this series of engines is the destruction of the crankshaft pulley.

The signature failure of this series of engines is the destruction of the crankshaft pulley.

The main problem of the power units of this family is the huge oil consumption.

The most famous problem of the unit is the burnout of refractory washers under the nozzles. It is advisable to change them…

The problem with 5-cylinder diesel engines of the series is increased camshaft wear.

The signature failure of this series of engines is the destruction of the crankshaft pulley.

The most famous engine problem is the stuck exhaust valves due to soot.

The motor is equipped with a reliable Bosch fuel system with electromagnetic injectors, but leaks at the injection pump seals or wear…

The weakest point of this power unit is its timing drive.

The weakest point of this power unit is its timing drive.

The weakest point of this power unit is its timing drive.

The most famous problem of this diesel engine is leaking on the heat exchanger gaskets, and since it is in the collapse…

The most well-known problem with these engines is low camshaft life.

The most famous engine problem is the stuck exhaust valves due to soot.

Until 2011, the main versions were equipped with a Delphi fuel system with piezo injectors, which were prone to leaks, which often…

The most problematic place of this power unit is the timing chain tensioners.

The most problematic place of this power unit is the timing chain tensioners.

In engines until 2014, phase regulators began to crack rather quickly, then the manufacturer finalized the design and the resource increased to…

First of all, this engine does not like tuning very much; its connecting rods cannot withstand.

A well-known weak point of this diesel unit is the small resource of rockers.

There are already cases of piston damage due to detonation caused by low-octane gasoline.

This is a completely reliable turbo engine for this level of boost and there are no problems with it.

All units of the modular series are afraid of detonation, do not use low-octane gasoline.
