OM660 0.8 CDI vs M132 (3B21)

Side-by-side reliability comparison

Higher reliability score
OM660 0.8 CDI CAUTION 55/100
+3 points over M132 (3B21)
0 / 100
CAUTION OM660 0.8 CDI Smart
0 / 100
CAUTION M132 (3B21) Smart

Specifications

OM660 0.8 CDI
M132 (3B21)
Brand
Smart
Smart
Verdict
CAUTION
CAUTION
Reliability
55
52
Years
2000--2014
2007--2014
Displacement
799 cc
999 cc
Layout
I3
I3
Type
Diesel
Petrol Turbo
Power
41--54 hp
61--84 hp
Known Issues
2
4
Total Risk Cost
€700--€2,000
€1,500--€4,000

Character

OM660 0.8 CDI

"ForTwo 450/451. Smallest production diesel. Turbo failure on 54hp version. DPF on 451. EGR. Quirky but fragile. Specialist Smart workshops only."

M132 (3B21)

"Mitsubishi 3B21 heart. Turbo version is peppy but fragile. SAM unit is the real villain. Budget carefully."

Issues Comparison

OM660 0.8 CDI 2

▲ HIGH
DPF (451 model) €300--€1,000 40,000 km--80,000 km
▲ HIGH
Turbo failure (54hp CDI) €400--€1,000 60,000 km--120,000 km

M132 (3B21) 4

◆ CRITICAL
SAM unit failure (electrical) €500--€1,500 50,000 km--120,000 km
▲ HIGH
Clutch actuator wear (automated manual) €400--€1,000 50,000 km--100,000 km
▲ HIGH
Turbo actuator failure €400--€900 60,000 km--120,000 km
● MODERATE
Oil leak (valve cover / sump) €200--€600 40,000 km--100,000 km

Models

OM660 0.8 CDI 2

ForTwo W451 2007--2014 ForTwo W450 2000--2007

M132 (3B21) 6

ForTwo W451 2007--2014 ForTwo W451 2007--2014 ForTwo W451 2008--2014 ForTwo W451 2007--2014 ForFour W453 2015--2024 ForTwo W453 2014--2024
Full OM660 0.8 CDI Report Full M132 (3B21) Report