OM612 vs M104

Side-by-side reliability comparison

Higher reliability score
M104 BEST 85/100
+15 points over OM612
0 / 100
ACCEPTABLE OM612 Mercedes-Benz
0 / 100
BEST M104 Mercedes-Benz

Specifications

OM612
M104
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
ACCEPTABLE
BEST
Reliability
70
85
Years
1999--2005
1990--1997
Displacement
2685 cc
3199 cc
Layout
I5
I6
Type
Diesel
Petrol Na
Power
170 hp
193--231 hp
Known Issues
1
1
Total Risk Cost
€300--€800
€500--€2,000

Character

OM612

"W210/W211 E270 CDI. 5-cylinder diesel. Smooth, torquey. Injector seal 'black death' concern. Turbo resonator failure. EGR issues. Good motorway cruiser when maintained."

M104

"W124/R129/W140 inline-6. One of Mercedes' most reliable engines. Bulletproof bottom end. Wiring harness biodegrades (uses soy-based insulation). Head gasket solid. 400k+ km possible."

Issues Comparison

OM612 1

▲ HIGH
Injector seal leak (Black Death) €300--€800 80,000 km--150,000 km

M104 1

▲ HIGH
Wiring harness biodegradation €500--€2,000 100,000 km--200,000 km

Models

OM612 1

E-Class W211 2002--2005

M104 0

No models listed.

Full OM612 Report Full M104 Report