Mercedes OM656 engine
Content
The 2.9-liter 6-cylinder Mercedes OM 656 diesel engine has been produced since 2017 and is installed on many modern models of the concern, such as W213, W222 or W463. This diesel has an aluminum block and plasma sprayed cast iron with Nanoslide coating.
The R6 line also includes: OM603, OM606, OM613 and OM648.
Specifications of the Mercedes OM656 2.9 diesel engine
| Exact volume | 2927 cm³ |
| Supply system | Common Rail |
| Internal combustion engine power | 272 - 286 HP |
| Torque | 600 Nm |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Bore | 82 mm |
| Piston stroke | 92.4 mm |
| Compression ratio | 15.5 |
| Features of the internal combustion engine | AdBlue |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | Camtronic |
| Turbocharging | BorgWarner R2S |
| What kind of oil to pour | 8.5 liters 5W-30 |
| fuel type | diesel |
| Environmental class | EURO 6 |
| Approximate resource | 250 000 km |
| Exact volume | 2927 cm³ |
| Supply system | Common Rail |
| Internal combustion engine power | 330 - 340 HP |
| Torque | 700 Nm |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Bore | 82 mm |
| Piston stroke | 92.4 mm |
| Compression ratio | 15.5 |
| Features of the internal combustion engine | AdBlue |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | Camtronic |
| Turbocharging | BorgWarner R2S |
| What kind of oil to pour | 8.5 liters 5W-30 |
| fuel type | diesel |
| Environmental class | EURO 6 |
| Approximate resource | 240 000 km |
Engine number OM656 is located at the junction of the block with the pallet
Fuel consumption of internal combustion engine Mercedes OM656
On the example of a 400 Mercedes-Benz S 2018 d with an automatic transmission:
| City | 6.8 liters |
| Track | 4.8 liters |
| Mixed | 5.6 liters |
Which cars put the engine OM 656 2.9 l
| CLS-Class C257 | 2018 - p.t. |
| GLC-Class X253 | 2019 - p.t. |
| GLE-Class W187 | 2018 - p.t. |
| GLS-Class X167 | 2019 - p.t. |
| G-Class W463 | 2019 - p.t. |
| E Class W213 | 2018 - p.t. |
| S-Class W222 | 2017 – 2020 |
| S-Class W223 | 2020 - p.t. |
Disadvantages, breakdowns and problems of the internal combustion engine OM 656
Most of the problems here are related to the Camtronic variable valve timing.
In the event of a breakdown, the drive electromagnets, controlled camshaft and rocker change
Does not tolerate bad diesel fuel and CR Bosch CP4 fuel system with piezo injectors
Also, from the left fuel, valves and cylinder head intake channels are quickly overgrown with soot.
Environmental bells and whistles like EGR, SCR and DPF, as always, cause a lot of trouble
