OM606 vs OM648

Side-by-side reliability comparison

Higher reliability score
OM606 BEST 96/100
+6 points over OM648
0 / 100
BEST OM606 Mercedes-Benz
0 / 100
BEST OM648 Mercedes-Benz

Specifications

OM606
OM648
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
BEST
BEST
Reliability
96
90
Years
1993--2001
2002--2006
Displacement
2996 cc
3222 cc
Layout
I6
I6
Type
Diesel
Diesel
Power
134--174 hp
204 hp
Known Issues
2
2
Total Risk Cost
€280--€700
€450--€1,100

Character

OM606

"Legendary. 500k+ miles documented. Tunable to 500hp. One of most reliable engines ever."

OM648

"Modern OM606 successor. Excellent highway cruiser. Strong torque."

Issues Comparison

OM606 2

○ MINOR
Glow plug failure (only meaningful issue) €80--€200 80,000 km--∞
○ MINOR
Injection pump seal wear (age-related) €200--€500 200,000 km--∞

OM648 2

● MODERATE
EGR valve fouling (city use) €300--€700 80,000 km--160,000 km
○ MINOR
Glow plugs + injector seals €150--€400 80,000 km--160,000 km

Models

OM606 2

300D W124 1993--1997 Sedan E 300D W210 1995--2003 Sedan

OM648 6

E-Class W210 1999--2002 C-Class W203 2001--2005 E-Class W210 1999--2002 S-Class W220 1999--2002 S-Class W220 2002--2005 E 320 CDI W211 2002--2009 Sedan
Full OM606 Report Full OM648 Report