Mercedes-Benz M104 Engine Specs
Mercedes-Benz
Quick overview
Mercedes-Benz M104 is a 3.0L (2962 cc) petrol engine with 220 HP, 280 Nm, 10.0:1 compression ratio. Fuel consumption: 12.5-8.2L/100km. Typical service life: 400,000+ km with proper maintenance.
220
HP
3.0L (2962 cm³)
Displacement
280 Nm @ 3750 RPM
Torque
Petrol
Fuel
Description
The Mercedes-Benz M104 is an inline-6 engine known for its exceptional reliability and smooth operation. It features SOHC design with 4 valves per cylinder and excellent build quality typical of Mercedes engines from this era. Many consider it one of the most reliable engines Mercedes ever produced.
General Information
Production Years:
1985-1998
Fuel Type:
Petrol
Environmental Standards:
Euro 1
Fuel Consumption:
12.5-8.2L/100km (28.7-18.8 mpg)
Power (HP):
220
Displacement:
3.0L (2962 cm³) (180.8 cu.in)
Torque:
280 Nm @ 3750 RPM (207-2766 lb-ft)
Cylinder Block Alloy:
Aluminum alloy
Cylinder Head Alloy:
Aluminum alloy
Has Turbo:
No
Engine Layout:
I6
Aspiration Type:
Naturally Aspirated
Fuel System:
Multi-Point Injection
Head Type:
SOHC
Timing Drive:
Chain
Cooling Type:
Liquid-cooled
Cylinders Count:
6
Technical Details
Cylinder Diameter:
88.5mm
Piston Stroke:
80.2mm
Total Valves:
12
Firing Order:
1-5-3-6-2-4
Weight:
168 kg (370 lbs)
Rings per Piston:
4 (3/1)
Compression Ratio:
10.0:1
Hydraulic Lifters:
No
Cylinder Coating:
Cast iron sleeve
Minimum Octane:
98
Maintenance
Oil Capacity:
6.5L (6.9 qts)
Recommended Oil:
Mercedes-Benz MB 229.3 5W-40
Operating Temperature:
80-105°C (176-221°F)
Thermostat Temperature:
85-90°C (185-194°F)
Service Life (km):
400,000+ km with proper maintenance (249 miles)
Timing Belt/Chain Interval:
Chain - inspect every 100,000 km