OM608 vs OM648

Side-by-side reliability comparison

Higher reliability score
OM648 BEST 90/100
+18 points over OM608
0 / 100
ACCEPTABLE OM608 Mercedes-Benz
0 / 100
BEST OM648 Mercedes-Benz

Specifications

OM608
OM648
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
ACCEPTABLE
BEST
Reliability
72
90
Years
2018--present
2002--2006
Displacement
1461 cc
3222 cc
Layout
I4
I6
Type
Diesel
Diesel
Power
116 hp
204 hp
Known Issues
1
2
Total Risk Cost
€300--€600
€450--€1,100

Character

OM608

"W177 A-Class, W247 B-Class. Renault K9K sourced and rebadged. Same proven diesel. DPF standard. Timing belt (same K9K belt concerns). Well-understood engine under a Mercedes badge."

OM648

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

Issues Comparison

OM608 1

▲ HIGH
Timing belt (K9K heritage) €300--€600 60,000 km--90,000 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

OM608 2

A-Class W177 2018--2025 B-Class W247 2019--2023

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 OM608 Report Full OM648 Report