Mercedes M113 E43
The main problem of the power units of this family is the huge oil consumption.
Mercedes-Benz CLS-Class engines
Mercedes-Benz CLS-Class is a German Gran Turismo (long journey) car in the back of a 4-door coupe, produced since 2004 by Mercedes-Benz. Since 2011, the second generation of the model has been produced. The main task of the CLS-class, according to the developers, is to unite the charm of a coupe and the practicality of a sedan under one body. The cars were assembled at the factories of the enterprise in Germany and Mexico. Machines of the 1st generation were produced about 170 thousand copies.
The Mercedes-Benz CLS-Class was offered with 15 engines since 2004 (11 petrol, 4 diesel). Displacement ranges from 1.5 to 6.2 liters, power output from 95 to 585 hp. All of them use a timing chain. 8 are turbocharged. The longest rated lifespan belongs to the Mercedes OM642 (about 450,000 km).
Mercedes-Benz CLS-Class engines by generation
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| Mercedes-Benz CLS-Class C219 2004–2010 | |||||||
| Mercedes M113 E50 | 2004–2006 | 5.0 L V8 | 296–306 hp | petrol | chain | 8 L | ~350,000 km |
| Mercedes M272 E35 | 2004–2010 | 3.5 L V6 | 258–292 hp | petrol | chain | 8 L | ~320,000 km |
| Mercedes M272 E30 | 2005–2010 | 3.0 L V6 | 231 hp | petrol | chain | 8 L | ~300,000 km |
| Mercedes-Benz CLS-Class W219 2004–2010 | |||||||
| Mercedes M113 E43 | 2004–2006 | 4.3 L V8 | 272–306 hp | petrol | chain | 8 L | ~300,000 km |
| Mercedes OM642 | 2005–2010 | 3.0 L V6 | 184–265 hp | diesel, turbo | chain | 8–12 L | ~450,000 km |
| Mercedes M273 | 2006–2010 | 4.7–5.5 L V8 | 340–388 hp | petrol | chain | 8.5 L | ~350,000 km |
| Mercedes M156 | 2006–2010 | 6.2 L V8 | 457–525 hp | petrol | chain | 9 L | ~250,000 km |
| Mercedes-Benz CLS-Class C218 2011–2018 | |||||||
| Mercedes OM651 | 2011–2018 | 1.8–2.1 L R4 | 95–204 hp | diesel | chain + gears | 6.5 L | ~400,000 km |
| Mercedes-Benz CLS-Class W218 2011–2018 | |||||||
| Mercedes M278 DE46 | 2011–2018 | 4.7 L V8 | 367–455 hp | petrol, turbo | chain | 8.5 L | ~300,000 km |
| Mercedes M157 DE55 | 2011–2018 | 5.5 L V8 | 525–585 hp | petrol, turbo | chain | 8.5 L | ~250,000 km |
| Mercedes M276 DE35 | 2011–2017 | 3.5 L V6 | 252–333 hp | petrol, NA / turbo | chain | 8 L | ~300,000 km |
| Mercedes-Benz CLS-Class C257 2018–present | |||||||
| Mercedes OM656 | 2018–present | 2.9 L R6 | 272–340 hp | diesel, turbo | chain | 8.5 L | ~250,000 km |
| Mercedes OM654 | 2018–present | 1.6–2.0 L R4 | 116–265 hp | diesel, turbo | chain | 6.5 L | ~240,000 km |
| Mercedes M256 E30 | 2018–present | 3.0 L R6 | 367–435 hp | petrol, turbo | chain | 6.5 L | ~250,000 km |
| Mercedes M264 | 2018–present | 1.5–2.0 L R4 | 156–299 hp | petrol, turbo | chain | 6.6 L | ~260,000 km |
Mercedes-Benz CLS-Class engine FAQ
What engines were used in the Mercedes-Benz CLS-Class?
Mercedes-Benz CLS-Class C219 (2004–2010): Mercedes M113 E50, Mercedes M272 E35 and Mercedes M272 E30; Mercedes-Benz CLS-Class W219 (2004–2010): Mercedes M113 E43, Mercedes OM642, Mercedes M273 and Mercedes M156; Mercedes-Benz CLS-Class C218 (2011–2018): Mercedes OM651; Mercedes-Benz CLS-Class W218 (2011–2018): Mercedes M278 DE46, Mercedes M157 DE55 and Mercedes M276 DE35; Mercedes-Benz CLS-Class C257 (2018–present): Mercedes OM656, Mercedes OM654, Mercedes M256 E30 and Mercedes M264.
Which Mercedes-Benz CLS-Class engine is the most durable?
By rated service life the most durable Mercedes-Benz CLS-Class engines are: Mercedes OM642 — about 450,000 km; Mercedes OM651 — about 400,000 km; Mercedes M113 E50 — about 350,000 km. Actual lifespan depends heavily on maintenance and oil change intervals.
How much oil does the Mercedes-Benz CLS-Class engine take?
Engine oil capacity with filter: Mercedes M113 E43 — 8 L (5W-40); Mercedes M113 E50 — 8 L (5W-40); Mercedes M156 — 9 L (0W-40); Mercedes M157 DE55 — 8.5 L (0W-40); Mercedes M256 E30 — 6.5 L (5W-30); Mercedes M264 — 6.6 L (5W-30); Mercedes M272 E30 — 8 L (5W-30); Mercedes M272 E35 — 8 L (5W-30); Mercedes M273 — 8.5 L (5W-40); Mercedes M276 DE35 — 8 L (5W-30); Mercedes M278 DE46 — 8.5 L (0W-40); Mercedes OM642 — 8–12 L (5W-30, MB 228.51/229.51); Mercedes OM651 — 6.5 L (5W-30); Mercedes OM654 — 6.5 L (5W-30); Mercedes OM656 — 8.5 L (5W-30).
Does the Mercedes-Benz CLS-Class have a timing belt or chain?
Timing chain: Mercedes M113 E43, Mercedes M113 E50, Mercedes M156, Mercedes M157 DE55, Mercedes M256 E30, Mercedes M264, Mercedes M272 E30, Mercedes M272 E35, Mercedes M273, Mercedes M276 DE35, Mercedes M278 DE46, Mercedes OM642, Mercedes OM651, Mercedes OM654 and Mercedes OM656; gear drive: Mercedes OM651.
Was the Mercedes-Benz CLS-Class available with a diesel engine?
Yes: Mercedes OM642, Mercedes OM651, Mercedes OM654 and Mercedes OM656.
Engine details
Mercedes M113 E50
The main problem of the power units of this family is the huge oil consumption.
Mercedes M272 E30
The weakest point of this power unit is its timing drive.
Mercedes M272 E35
The weakest point of this power unit is its timing drive.
Mercedes M273
The unit is considered problematic and its weak point is timing drive.
Mercedes OM642
The most famous problem of this diesel engine is leaking on the heat exchanger gaskets, and since it is in the collapse…
Mercedes M156
The most well-known problem with these engines is low camshaft life.
Mercedes OM651
Until 2011, the main versions were equipped with a Delphi fuel system with piezo injectors, which were prone to leaks, which often…
Mercedes M157 DE55
This unit is often tuned and its resource depends on the degree of forcing.
Mercedes M276 DE35
The most problematic place of this power unit is the timing chain tensioners.
Mercedes M278 DE46
Due to the design features of the motor, the timing chain tensioners quickly fail.
Mercedes OM654
A well-known weak point of this diesel unit is the small resource of rockers.
Mercedes M256 E30
So far, no design flaws have been noted on the specialized forums.
Mercedes OM656
Most of the problems here are related to the Camtronic variable valve timing.
Mercedes M264
There are already cases of piston damage due to detonation caused by low-octane gasoline.
Models with the same engines
- Mercedes-Benz E-Class 15 shared engines
- Mercedes-Benz S-Class 13 shared engines
- Mercedes-Benz M-Class 10 shared engines
- Mercedes-Benz C-Class 9 shared engines
- Mercedes-Benz SL-Class 9 shared engines
- Mercedes-Benz CLK-Class 7 shared engines
- Mercedes-Benz R-Class 7 shared engines
- Mercedes-Benz CL-Class 6 shared engines
- Mercedes-Benz G-Class 6 shared engines
- Mercedes-Benz GLK-Class 5 shared engines