M256 vs M112/M113
Side-by-side reliability comparison
Higher reliability score
M112/M113
BEST
92/100
+12 points over M256
0
/ 100
BUY
M256
Mercedes-Benz
0
/ 100
BEST
M112/M113
Mercedes-Benz
Specifications
M256
M112/M113
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
BUY
BEST
Reliability
80
92
Years
2017--present
1997--2006
Displacement
2999 cc
3199 cc
Layout
I6
V6
Type
Petrol Turbo
Petrol Na
Power
367--435 hp
218--306 hp
Known Issues
2
3
Total Risk Cost
€1,200--€4,000
€950--€2,850
Character
M256
"MB returns to I6. EQ Boost. Smooth, powerful. Still proving itself."
M112/M113
"Last simple MB V6/V8. Over-engineered. Cheap to maintain. 250k+ km."
Issues Comparison
M256 2
● MODERATE
48V ISG starter-generator complexity
○ MINOR
Timing chain (early data building)
M112/M113 3
● MODERATE
Air suspension / Airmatic failure (S/ML models)
○ MINOR
Spark plugs + ignition coils (V6/V8)
○ MINOR
Coolant system: thermostat + expansion tank