The Mercedes M276 V6 engine with a volume of 3.5 liters was introduced in 2010 and has since been installed on most modern models of the concern, such as the W205 and W222. There are three modifications of this power unit: two atmospheric and turbocharged.
Mercedes V6 family: M112 E24, M112 E26, M112 E28, M112 E32, M112 E37, M272 E25, M272 E30, M272 E35, M276 DE30, M276 DE35.
Specifications
| Production years | since 2010 |
| Displacement, cc | 3498 |
| Fuel system | direct injection CGI |
| Power output, hp | 252 (M 276 DES 35 red.) 306 (M 276 DES 35) 333 (M 276 DES 35 LA) |
| Torque output, Nm | 340 (M 276 DES 35 red.) 370 (M 276 DES 35) 480 (M 276 DES 35 LA) |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 92.9 |
| Piston stroke, mm | 86 |
| Compression ratio | 12.0 (M 276 DES 35 red.) 12.2 (M 276 DES 35) 10.7 (M 276 DES 35 LA) |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | yes |
| Turbocharging | no (M 276 DES 35 red.) no (M 276 DES 35) yes (M 276 DES 35 LA) |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 8.0 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for Mercedes E300 2015) — city — highway — combined |
9.5 5.6 7.0 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 172 |
The engine was installed on:
- Mercedes C-Class W204 in 2011 – 2014;
- Mercedes CLS-Class W218 in 2011 – 2017;
- Mercedes E-Class W212 in 2011 – 2016;
- Mercedes S-Class W221 in 2011 – 2013, S-Class W222 in 2013 – 2017;
- Mercedes SLK-Class R172 in 2011 – 2015;
- Mercedes GLK-Class X204 in 2012 – 2015;
- Mercedes ML-Class W166 in 2012 – 2018;
- Mercedes R-Class W251 in 2012 – 2014.
Disadvantages of the M276 DE35 engine
- The most problematic place of this power unit is the timing chain tensioners.
- If you miss their failure, you will have to change the timing kit with phase regulators.
- Also on these engines, impulse disks on camshafts are often displaced.
- Direct injection injectors are sensitive to the quality of the fuel consumed.
- A couple of cases of scuffing due to catalyst crumbs have been described on specialized forums.
Frequently asked questions about the Mercedes M276 DE35
How much power does the Mercedes M276 DE35 make?
Power output of the Mercedes M276 DE35, hp: 252 (M 276 DES 35 red.); 306 (M 276 DES 35); 333 (M 276 DES 35 LA). Torque, Nm: 340 (M 276 DES 35 red.); 370 (M 276 DES 35); 480 (M 276 DES 35 LA).
How much oil does the Mercedes M276 DE35 take and which one?
Engine oil capacity: 8.0 liters. Recommended oil: 5W-30.
Does the Mercedes M276 DE35 have a timing belt or chain?
The Mercedes M276 DE35 uses a timing chain.
Is the Mercedes M276 DE35 turbocharged?
Yes, the Mercedes M276 DE35 is turbocharged (no (M 276 DES 35 red.); no (M 276 DES 35); yes (M 276 DES 35 LA)).
Does the Mercedes M276 DE35 need valve clearance adjustment?
No, the Mercedes M276 DE35 has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Mercedes M276 DE35 last?
The typical lifespan of the Mercedes M276 DE35 is ~300 000 km with proper maintenance.
What is the fuel consumption of the Mercedes M276 DE35?
Mercedes E300 2015: city 9.5, highway 5.6, combined 7.0 L/100 km.
What cars was the Mercedes M276 DE35 installed on?
Mercedes C-Class W204 in 2011 - 2014; Mercedes CLS-Class W218 in 2011 - 2017; Mercedes E-Class W212 in 2011 - 2016; Mercedes S-Class W221 in 2011 - 2013, S-Class W222 in 2013 - 2017; Mercedes SLK-Class R172 in 2011 - 2015; Mercedes GLK-Class X204 in 2012 - 2015 and 2 more (see the full list above).
What are the common problems of the Mercedes M276 DE35?
The most problematic place of this power unit is the timing chain tensioners. If you miss their failure, you will have to change the timing kit with phase regulators. All known problems.
