OM608 Mercedes-Benz OM608
Компактний дизельний двигун з турбонаддувом, розроблений для економічності та надійності.
30
Brand engines
5
Modifications
Technical Specifications
| Engine Displacement | 1.5 L (799 cc) |
| Configuration | Inline-3 |
| Number of Cylinders | 3 |
| Valves per Cylinder | 2 |
| Power | 40 - 54 л.с. |
| Torque | 70 - 120 Н*м |
| Cylinder Bore | 72.00 mm |
| Piston Stroke | 81.00 mm |
| Compression Ratio | 20.0:1 |
| Firing Order | 1-2-3 |
| Fuel System | Common Rail Direct Injection |
| Aspiration | Turbocharged |
| Turbocharger | K03 |
| Intercooler | Yes |
| Maximum RPM | 4,500 rpm |
| Max Torque RPM | 2,500 rpm |
| Valve Train | SOHC |
| Timing Drive | Belt |
| Timing belt replacement interval | 60,000 km |
| Block Material | Cast Iron |
| Head Material | Aluminum |
| Engine Weight | 120 kg |
| Dimensions (L×W×H) | 600 × 500 × 600 mm |
| Lubrication System | Pressure lubrication |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | Mercedes-Benz OM engine series |
| Manufacturing Plant | Hambach, France |
Maintenance
| Engine Oil Capacity | 3.5 L (with filter: 4 L) |
| Recommended Viscosity | 5W-30 |
| Oil Standard | ACEA B3/B4 |
| Recommended Brands | Mobil 1, Castrol, Shell |
| Oil Change Interval | 15 000 km or 12 mo |
| Oil Filter | A0001800209 |
| Air Filter |
A0000941304
Replace every 30 000 km |
| Fuel filter | A0004770109 |
| Spark Plugs | |
| Coolant Capacity | 5 L |
| Coolant Type | G12 (Mercedes-Benz Coolant) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 90°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 120°C |
| Critical Temperature | 130°C |
| Annual Maintenance Cost | 500-800 USD |
Reliability
Expected lifespan: 250 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| Turbocharger failure | Medium | 100000-150000 km | $800-1200 |
| EGR valve clogging | Low | 80000-120000 km | $300-500 |
Known defects
- Early models had issues with fuel injectors
- Some engines experienced oil leaks
Warranty extensions
- Mercedes-Benz extended warranty for engine issues up to 5 years/100000 km
Tuning potential
Tuning potential: Medium | Max. safe power: 120 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 70 hp | 140 Nm |
ECU remap Reliability impact: Minimal |
$400 |
| Stage 2 | 90 hp | 160 Nm |
ECU, Downpipe Required: Upgraded intercooler, ECU remap Reliability impact: Low |
$1200 |
| Stage 3 | 110 hp | 180 Nm |
- Required: Bigger turbo, Forged internals Reliability impact: Medium |
$2500 |
Popular modifications
- ECU remap
- Upgraded intercooler
- Performance exhaust
Tuning limitations
- Turbo limitations above 110hp
- Cooling system upgrades needed for high power
Детальні технічні характеристики
6
модифікацій
Спільні характеристики
| Boost type | Turbocharged |
| Capacity | 1461 cm3 |
| Car class | C |
| Compression ratio | 15.1 |
| Country | Germany |
| Cylinder bore | 76.0 mm |
| Cylinder layout | inline |
| Emission standards | Euro 6 |
| Engine code | OM608.915 |
| Engine model | OM608 |
| Engine placement | Front, transverse |
| Engine type | Diesel |
| Front brakes | ventilated disc |
| Front suspension | Independent, spring |
| Fuel | diesel |
| Fuel tank capacity | 43 l |
| Injection type | Common rail (diesel) |
| Number of cylinders | 4 |
| Number of seater | 5 |
| Pitch Circle Diameter | DIA66.6 5x112 mm |
| Rear brakes | Disc |
| Steering wheel position | Left/Right |
| Stroke cycle | 80.5 mm |
| Timing belt | SOHC |
| Valves per cylinder | 2 |
| Wheelbase | 2729 mm |
Модифікації двигуна
1.5 AMT (116 hp)
Привід Front wheel drive
КПП robot
CLA C118
2019–2023
116 hp
engine
Maximum torque
260 N*m
Min trunk capacity
460 l
Turnover of maximum torque
2750 RPM
performance
Acceleration (0-100 km/h)
10.7 s
Max speed
205 km/h
fuel
City driving fuel consumption per 100 km
4.3 l
CO2 emissions
105 g/km
Highway driving fuel consumption per 100 km
3.8 l
Mixed driving fuel consumption per 100 km
4.0 l
transmission
Drive wheels
Front wheel drive
Gearbox type
robot
Number of gear
7
dimensions
Back track width
1602 mm
Clearance
140 mm
Curb weight
1490 kg
Front track width
1612 mm
Full weight
2000 kg
Height
1439 mm
Length
4688 mm
Number of doors
4
Width
1830 mm
suspension
Back suspension
Independent, spring
Wheel size
195/65 R15, 205/55 R16
other
Body type
Sedan
1.5 AMT (116 hp)
Привід Front wheel drive
КПП robot
CLA C118
2019–2023
116 hp
engine
Max trunk capacity
1370 l
Maximum torque
260 N*m
Min trunk capacity
505 l
Turnover of maximum torque
2750 RPM
performance
Acceleration (0-100 km/h)
11.0 s
Max speed
203 km/h
fuel
City driving fuel consumption per 100 km
5.3 l
CO2 emissions
122 g/km
Highway driving fuel consumption per 100 km
4.2 l
Mixed driving fuel consumption per 100 km
4.6 l
transmission
Drive wheels
Front wheel drive
Gearbox type
robot
Number of gear
7
dimensions
Back track width
1602 mm
Clearance
140 mm
Curb weight
1540 kg
Front track width
1612 mm
Full weight
2075 kg
Height
1442 mm
Length
4688 mm
Number of doors
5
Width
1830 mm
suspension
Back suspension
Independent, spring
Wheel size
205/55 R17, 225/45 R18
other
Body type
Wagon
1.5 MT (116 hp)
Привід Front wheel drive
КПП Manual
CLA C118
2019–2023
116 hp
engine
Maximum torque
260 N*m
Min trunk capacity
460 l
Turnover of maximum torque
2750 RPM
performance
Acceleration (0-100 km/h)
10.9 s
Max speed
205 km/h
fuel
City driving fuel consumption per 100 km
5.1 l
CO2 emissions
117 g/km
Highway driving fuel consumption per 100 km
4.0 l
Mixed driving fuel consumption per 100 km
4.4 l
transmission
Drive wheels
Front wheel drive
Gearbox type
Manual
Number of gear
6
dimensions
Back track width
1602 mm
Clearance
140 mm
Curb weight
1485 kg
Front track width
1612 mm
Full weight
1980 kg
Height
1439 mm
Length
4688 mm
Number of doors
4
Width
1830 mm
suspension
Back suspension
Independent, spring
Wheel size
195/65 R15, 205/55 R16
other
Body type
Sedan
1.5 MT (116 hp)
Привід Front wheel drive
КПП Manual
CLA C118
2019–2023
116 hp
engine
Max trunk capacity
1370 l
Maximum torque
260 N*m
Min trunk capacity
505 l
Turnover of maximum torque
2750 RPM
performance
Acceleration (0-100 km/h)
11.2 s
Max speed
203 km/h
fuel
City driving fuel consumption per 100 km
5.3 l
CO2 emissions
122 g/km
Highway driving fuel consumption per 100 km
4.2 l
Mixed driving fuel consumption per 100 km
4.6 l
transmission
Drive wheels
Front wheel drive
Gearbox type
Manual
Number of gear
6
dimensions
Back track width
1602 mm
Clearance
140 mm
Curb weight
1500 kg
Front track width
1612 mm
Full weight
2055 kg
Height
1442 mm
Length
4688 mm
Number of doors
5
Width
1830 mm
suspension
Back suspension
Independent, spring
Wheel size
205/55 R17, 225/45 R18
other
Body type
Wagon
1.5 AMT (116 hp)
Привід Front wheel drive
КПП robot
A-Class 4 (W177)
2018–2022
116 hp
engine
Maximum torque
260 N*m
Min trunk capacity
420 l
Turnover of maximum torque
2750 RPM
performance
Acceleration (0-100 km/h)
10.6 s
Max speed
206 km/h
fuel
City driving fuel consumption per 100 km
4.9 l
CO2 emissions
113 g/km
Highway driving fuel consumption per 100 km
3.9 l
Mixed driving fuel consumption per 100 km
4.3 l
transmission
Drive wheels
Front wheel drive
Gearbox type
robot
Number of gear
7
dimensions
Back track width
1547 mm
Clearance
104 mm
Curb weight
1455 kg
Front track width
1567 mm
Full weight
1965 kg
Height
1446 mm
Length
4549 mm
Number of doors
4
Width
1796 mm
suspension
Back suspension
Semi-dependent, spring
Wheel size
205/55 R17, 225/45 R18
other
Body type
Sedan
1.5 MT (116 hp)
Привід Front wheel drive
КПП Manual
A-Class 4 (W177)
2018–2022
116 hp
engine
Maximum torque
260 N*m
Min trunk capacity
420 l
Turnover of maximum torque
2500 RPM
performance
Acceleration (0-100 km/h)
10.7 s
Max speed
216 km/h
fuel
City driving fuel consumption per 100 km
4.7 l
CO2 emissions
105 g/km
Highway driving fuel consumption per 100 km
3.5 l
Mixed driving fuel consumption per 100 km
4.0 l
transmission
Drive wheels
Front wheel drive
Gearbox type
Manual
Number of gear
6
dimensions
Back track width
1547 mm
Curb weight
1365 kg
Front track width
1567 mm
Full weight
1945 kg
Height
1446 mm
Length
4549 mm
Number of doors
4
Width
1796 mm
suspension
Back suspension
Semi-dependent, spring
Wheel size
205/55 R17, 225/45 R18
other
Body type
Sedan
Cars with the OM608 engine
This engine was fitted to 2 models
All modifications (5)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Smart #5 | #5 | 1.5 Turbo Diesel 115 к.с. 6-МКП 2WD | 115 hp | 6-МКП | 2WD |
| Smart #5 | #5 | 1.5 Turbo Diesel 115 к.с. 7-DSG 2WD | 115 hp | 7-DSG | 2WD |
| Smart #5 | #5 | 1.5 Turbo Diesel 115 к.с. 8-Автомат 2WD | 115 hp | 8-Автомат | 2WD |
| Mercedes-Benz Citan | Citan II | 1.5 dCi 75 л.с. 5-МКП 2WD | 75 hp | 5-МКП | 2WD |
| Mercedes-Benz Citan | Citan II | 1.5 dCi 95 л.с. 6-МКП 2WD | 95 hp | 6-МКП | 2WD |
Interesting Facts
- The OM608 was one of the first diesel engines used in a city car.
- It features a compact design suitable for small vehicles.
Applications
Total produced: approximately 300000
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Smart Fortwo | W450 | 1998-2007 | 40hp/54hp | Europe, Asia |
Compatible transmissions: 5-speed Manual, 6-speed Automated Manual
Drive types: RWD
Fuel Economy
| Fuel Type | Diesel |
| Consumption (City) | 5.5 L/100km |
| Consumption (Highway) | 4.2 L/100km |
| Consumption (Combined) | 4.8 L/100km |
| Real Consumption | 5 L/100km |
| Fuel Tank Capacity | 33 L |
| Range | 687 km |
| Cost per 100 km | 6-8 USD |
Emissions Standards
| Emission Standard | Euro 4 |
| CO₂ Emissions | 120 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |
Comparison with competitors
| Engine | Brand | Displacement | Power | Torque |
|---|---|---|---|---|
| 1.5 dCi | Renault | 1,461 cc | 65 hp | 150 Nm |
Pros
- Compact size for city driving
- Good fuel economy
Cons
- Limited power output
- Turbocharger issues in some units