German automaker Daimler AG and French automaker Renault collaborated to develop the first diesel engine, the Mercedes-Benz OM607. With a Common Rail system, the OM 607 engine is a 4-cylinder in-line engine that produces 90–110 horsepower. installed on Mercedes-Benz B-Class and A-Class vehicles.
The most recent version features a start-stop system, low-resistance lubrication and cooling systems, and a unique coating on the cylinder sliding surface that lowers friction. The manufacturer claims that this engine can use an average of 3.5 liters per 100 kilometers in the Renault Megane model. The engine started to operate with fewer vibrations after Mercedes technicians intervened and installed a dual-mass flywheel, a generator, a starter, and bearings from gasoline engines. At temperatures higher than -10°C, the start-stop system functions. Compared to the 1.8-liter engine, the 1.5-liter engine weighs 30 kg less. The new engine has the OM 607 index according to the Mercedes classification.
Specifications
| Manufacturer | Renault |
| Also called | OM 607 |
| Start of production | 2012 |
| Cylinder block alloy | cast iron |
| Fuel system | direct injection |
| Configuration | inline |
| Number of cylinders | 4 |
| Piston stroke, mm | 80.5 |
| Cylinder bore, mm | 76 |
| Compression ratio | 15.5 |
| Displacement, cc | 1461 |
| Power output, hp | 90 / 4000 109 / 4000 110 / 4000 |
| Torque output, Nm / rpm | 200 / 3000 240 / 2500 240 / 2750 260 / 2500 |
| Fuel type | diesel |
| Euro standards | Euro 5 |
| Firing order | 1-3-4-2 |
Power and torque versus engine speed graph (OM 607):
Explanation of OM607 marking
| OM | Heavy Fuel Oil (Diesel) ICE |
| 607 | Engine type: 4-cylinder in-line. |