M134 1.1 vs M135 1.3/1.5

Side-by-side reliability comparison

Higher reliability score
M135 1.3/1.5 ACCEPTABLE 72/100
+4 points over M134 1.1
0 / 100
ACCEPTABLE M134 1.1 Smart
0 / 100
ACCEPTABLE M135 1.3/1.5 Smart

Specifications

M134 1.1
M135 1.3/1.5
Brand
Smart
Smart
Verdict
ACCEPTABLE
ACCEPTABLE
Reliability
68
72
Years
2004--2006
2014--2019
Displacement
1124 cc
1332 cc
Layout
I3
I4
Type
Petrol Na
Petrol Na
Power
75 hp
71--109 hp
Known Issues
1
2
Total Risk Cost
€0--€0
€300--€1,200

Character

M134 1.1

"ForFour 454 (W454). Mitsubishi 3-cyl. Short production run. Simple. No known major issues — too few on road. Parts from Mitsubishi Colt."

M135 1.3/1.5

"ForTwo/ForFour 453. Mitsubishi 3A9 engine (Mirage/Space Star). NA 1.0 (71hp) and 1.3 (109hp). Brabus 1.5 turbo (177hp) rare. Simple, reliable for what it is. Timing chain. CVT on ForTwo can be jerky. Better than old M132."

Issues Comparison

M134 1.1 1

○ MINOR
No significant issues €0--€0 0 km--0 km

M135 1.3/1.5 2

● MODERATE
CVT jerkiness (ForTwo) €0--€500 40,000 km--100,000 km
● MODERATE
Timing chain tensioner wear €300--€700 100,000 km--180,000 km

Models

M134 1.1 1

ForFour W454 2004--2006

M135 1.3/1.5 2

ForFour W454 2004--2006 ForFour W454 2005--2006
Full M134 1.1 Report Full M135 1.3/1.5 Report