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.
The V6-family includes: 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 |
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.
