The 3.2-liter inline 6-cylinder Mercedes OM613 engine was assembled from 1999 to 2003 and was installed on only two models: the E-class in the back of the W210, and also the S-class in the back of the W220. This power unit was offered in a single modification of the 320 CDI with 197 hp and 470 Nm.
The diesel R6-family includes: OM603, OM606, OM613, OM648, OM656.
The engine has 4 valves per cylinder, dual camshafts, an oxidation catalytic converter and exhaust gas recirculation. Models with this engine are marked as “320 CDI” and develop 197 hp. This diesel is renowned for its incredible endurance. Despite the fact that the greater the number of components, the more likely it is to break, serious malfunctions with this engine do not occur very often. The cylinder-piston group has high strength. A turbine and a dual-mass flywheel can usually withstand several hundred thousand kilometers.
Specifications
| Production years | 1999-2003 |
| Displacement, cc | 3222 |
| Fuel system | Common Rail |
| Power output, hp | 197 |
| Torque output, Nm | 470 |
| Cylinder block | cast iron R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 88 |
| Piston stroke, mm | 88.3 |
| Compression ratio | 18.0 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | yes |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 7.5 |
| Fuel type | diesel |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for Mercedes E 320 CDI 2001) — city — highway — combined |
11.1 5.9 7.8 |
| Engine lifespan, km | ~400 000 |
| Weight, kg | 245 |
The engine was installed on:
- Mercedes E-Class W210 in 1999 – 2003;
- Mercedes S-Class W220 in 1999 – 2003.
Disadvantages of the OM613 engine
- All known problems of this diesel engine are related to Common Rail fuel equipment.
- Often the fuel rail pressure sensor and the fuel shut-off valve fail.
- Due to the drying of the quick couplings, the system is constantly aired.
- Burnout of refractory washers under the nozzles causes accelerated carbon formation.
- The weak link in electrical terms is the camshaft and crankshaft position sensors.
