M113 vs OM654
Side-by-side reliability comparison
Higher reliability score
M113
BEST
89/100
+4 points over OM654
0
/ 100
BEST
M113
Mercedes-Benz
0
/ 100
BEST
OM654
Mercedes-Benz
Specifications
M113
OM654
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
BEST
BEST
Reliability
89
85
Years
1997--2010
2016--present
Displacement
4966 cc
1950 cc
Layout
V8
I4
Type
Petrol Na
Diesel
Power
272--367 hp
150--245 hp
Known Issues
7
2
Total Risk Cost
€1,280--€3,625
€500--€1,500
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."
OM654
"Best modern MB diesel. Aluminium block, low friction. Long-distance champion."
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
OM654 2
○ MINOR
DPF — better than older MB diesels but still diesel
○ MINOR
Minor EGR fouling (best-in-class but not immune)
Models
OM654 47
A-Class
A-Class
GLA
B-Class
C-Class
GLC
C-Class
C-Class
C-Class
GLC
GLC
E-Class
E-Class
E-Class
GLE
C-Class
E-Class
C-Class
E-Class
GLC
C-Class
E-Class
GLC
GLC
A-Class
GLA
CLA
A-Class
CLA
GLA
B-Class
E-Class
S-Class
S-Class
GLE
G-Class
E-Class
GLE
E-Class
S-Class
S-Class
S-Class
G-Class
G-Class
C 220d Wagon
E 220d Wagon
GLC 220d Coupe