M119 vs OM654
Side-by-side reliability comparison
Higher reliability score
OM654
BEST
85/100
+13 points over M119
0
/ 100
ACCEPTABLE
M119
Mercedes-Benz
0
/ 100
BEST
OM654
Mercedes-Benz
Specifications
M119
OM654
Brand
Mercedes-Benz
Mercedes-Benz
Verdict
ACCEPTABLE
BEST
Reliability
72
85
Years
1989--1998
2016--present
Displacement
4973 cc
1950 cc
Layout
V8
I4
Type
Petrol Na
Diesel
Power
326--381 hp
150--245 hp
Known Issues
1
2
Total Risk Cost
€500--€2,000
€500--€1,500
Character
M119
"W124 500E/E500, R129 SL500, W140 S500 V8. DOHC 32V. Wiring harness issue (biodegradable). Ignition system needs attention at high mileage. Strong engine, expensive to maintain."
OM654
"Best modern MB diesel. Aluminium block, low friction. Long-distance champion."
Issues Comparison
M119 1
▲ HIGH
Wiring harness biodegradation
OM654 2
○ MINOR
DPF — better than older MB diesels but still diesel
○ MINOR
Minor EGR fouling (best-in-class but not immune)
Models
M119 0
No models listed.
OM654 47
B-Class
A-Class
GLA
A-Class
C-Class
C-Class
GLC
E-Class
GLC
E-Class
GLE
E-Class
C-Class
C-Class
GLC
GLC
E-Class
C-Class
E-Class
GLC
C-Class
C-Class
GLC
E-Class
CLA
A-Class
CLA
B-Class
GLA
GLA
A-Class
E-Class
S-Class
GLE
E-Class
G-Class
E-Class
G-Class
G-Class
S-Class
S-Class
S-Class
GLE
S-Class
C 220d Wagon
E 220d Wagon
GLC 220d Coupe