M113 vs OM648
Side-by-side reliability comparison
Higher reliability score
OM648
BEST
90/100
+1 points over M113
0
/ 100
BEST
M113
Mercedes-Benz
0
/ 100
BEST
OM648
Mercedes-Benz
Specifications
M113
OM648
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
BEST
BEST
Reliability
89
90
Years
1997--2010
2002--2006
Displacement
4966 cc
3222 cc
Layout
V8
I6
Type
Petrol Na
Diesel
Power
272--367 hp
204 hp
Known Issues
7
2
Total Risk Cost
€1,280--€3,625
€450--€1,100
Character
M113
"The V8 workshops call indestructible. Valve-cover gaskets weep and the crank sensor dies when hot; otherwise 250,000 miles is routine. Supercharged E55 ML (476-500 PS) is a different animal and not covered here."
OM648
"Modern OM606 successor. Excellent highway cruiser. Strong torque."
Issues Comparison
M113 7
▲ HIGH
Harmonic balancer (crank pulley) rubber delaminates
● MODERATE
Oil leaks — valve-cover gaskets, front crank seal (V6), rear main seal (V8)
● MODERATE
Air suspension / Airmatic failure (S/ML models)
○ MINOR
Oil sludge from conventional oil on long FSS intervals (MY1998-2001)
○ MINOR
Crankshaft position sensor fails when hot — stall or hot no-start
○ MINOR
Spark plugs + ignition coils (V6/V8)
○ MINOR
Coolant system: water pump, thermostat, expansion tank
OM648 2
● MODERATE
EGR valve fouling (city use)
○ MINOR
Glow plugs + injector seals