OM608 vs OM606

Side-by-side reliability comparison

Higher reliability score
OM606 BEST 96/100
+24 points over OM608
0 / 100
ACCEPTABLE OM608 Mercedes-Benz
0 / 100
BEST OM606 Mercedes-Benz

Specifications

OM608
OM606
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
ACCEPTABLE
BEST
Reliability
72
96
Years
2018--present
1993--2001
Displacement
1461 cc
2996 cc
Layout
I4
I6
Type
Diesel
Diesel
Power
116 hp
134--174 hp
Known Issues
1
2
Total Risk Cost
€300--€600
€280--€700

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."

OM606

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

Issues Comparison

OM608 1

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

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--∞

Models

OM608 2

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

OM606 2

300D W124 1993--1997 Sedan E 300D W210 1995--2003 Sedan
Full OM608 Report Full OM606 Report