M111 vs OM656

Side-by-side reliability comparison

Higher reliability score
OM656 BUY 82/100
+6 points over M111
0 / 100
ACCEPTABLE M111 Mercedes-Benz
0 / 100
BUY OM656 Mercedes-Benz

Specifications

M111
OM656
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
ACCEPTABLE
BUY
Reliability
76
82
Years
1992--2003
2017--present
Displacement
2295 cc
2999 cc
Layout
I4
I6
Type
Petrol Na
Diesel
Power
122--193 hp
243--330 hp
Known Issues
2
2
Total Risk Cost
€1,000--€2,500
€500--€2,000

Character

M111

"W202/W210 4-cyl. Supercharged Kompressor versions. Simple, reliable. Head gasket is the main concern. Kompressor clutch can fail. Good parts availability."

OM656

"Flagship modern MB diesel. Inline-6 smoothness returns. MHEV. GLE/GLS/S-Class. Excellent highway. Early data strong."

Issues Comparison

M111 2

▲ HIGH
Head gasket failure €600--€1,500 100,000 km--200,000 km
● MODERATE
Kompressor clutch/bearing failure €400--€1,000 80,000 km--150,000 km

OM656 2

● MODERATE
DPF + EGR — diesel city driving concern €400--€1,200 60,000 km--120,000 km
○ MINOR
AdBlue / SCR system consumption and faults €100--€800 30,000 km--∞

Models

M111 0

No models listed.

OM656 3

E 400d W213 2016--2024 Sedan GLE 350d W166 2015--2019 SUV S 350d W222 2013--2020 Sedan
Full M111 Report Full OM656 Report