The Mercedes-Benz OM607 is the first diesel engine developed from a collaboration between German Daimler AG and French car manufacturer Renault. The OM 607 engine is a 4-cylinder in-line engine with a capacity of 90-110 hp, equipped with a Common Rail system. Installed on Mercedes-Benz A-Class, Mercedes-Benz B-Class.
The modern upgraded version has a special coating of the cylinder sliding surface, which reduces friction, lubrication and cooling systems with low resistance and a start-stop system. In the Renault Megane model, this engine can consume an average of 3.5 liters per 100 km, according to the manufacturer. After the intervention of Mercedes technicians, the engine received bearings from gasoline engines, a dual-mass flywheel, a starter and a generator from the bowels of Daimler – as a result, the engine began to work with less vibrations. The start-stop system operates at temperatures above -10C°. The 1.5-liter engine is 30 kg lighter than the 1.8-liter. According to the Mercedes classification, the new engine has the OM 607 index.
Explanation of OM607 marking
| OM | Heavy Fuel Oil (Diesel) ICE |
| 607 | Engine type: 4-cylinder in-line. |
Specifications
| Production years | 2012-2021 |
| Displacement, cc | 1461 |
| Fuel system | Common Rail |
| Power output, hp | 90 – 110 |
| Torque output, Nm | 200 – 260 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 76 |
| Piston stroke, mm | 80.5 |
| Compression ratio | 15.5 |
| Hydraulic lifters | no |
| Timing drive | belt |
| Turbocharging | yes |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.9 |
| Fuel type | diesel |
| Euro standards | EURO 5/6 |
| Weight, kg | 145 |
| Firing order | 1-3-4-2 |
Graph of power and torque versus engine speed OM 607:
The engine was installed on:
- Mercedes B-Class W246 in 2011 – 2018 (B 180 CDI);
- Mercedes A-Class W176 in 2012 – 2018 (A 180 CDI);
- Mercedes Citan W415 in 2012 – 2021;
- Mercedes CLA-Class C117 in 2013 – 2019 (CLA 180 CDI);
- Mercedes GLA-Class X156 in 2014 – 2019 (GLA 180 CDI).
Disadvantages of the OM607 engine
- Like the Renault K9K on which it is based, this engine is known for crankshaft bearing spin;
- Delphi fuel equipment on early versions is sensitive to fuel quality;
- If the timing belt breaks, the valves bend;
- There are no hydraulic lifters, so the valve clearances have to be adjusted.
Frequently asked questions about the Mercedes OM607
How much power does the Mercedes OM607 make?
The Mercedes OM607 develops 90 - 110 hp and 200 - 260 Nm of torque.
How much oil does the Mercedes OM607 take and which one?
Engine oil capacity: 4.9 liters. Recommended oil: 5W-30.
Does the Mercedes OM607 have a timing belt or chain?
The Mercedes OM607 uses a timing belt.
Is the Mercedes OM607 turbocharged?
Yes, the Mercedes OM607 is turbocharged.
Does the Mercedes OM607 need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
What cars was the Mercedes OM607 installed on?
Mercedes B-Class W246 in 2011 - 2018 (B 180 CDI); Mercedes A-Class W176 in 2012 - 2018 (A 180 CDI); Mercedes Citan W415 in 2012 - 2021; Mercedes CLA-Class C117 in 2013 - 2019 (CLA 180 CDI); Mercedes GLA-Class X156 in 2014 - 2019 (GLA 180 CDI).
What are the common problems of the Mercedes OM607?
Like the Renault K9K on which it is based, this engine is known for crankshaft bearing spin. Delphi fuel equipment on early versions is sensitive to fuel quality. All known problems.
