H4B (SCe 1.0) vs M135 1.3/1.5

Side-by-side reliability comparison

Reliability score
Tied 72/100
0 / 100
ACCEPTABLE H4B (SCe 1.0) Smart
0 / 100
ACCEPTABLE M135 1.3/1.5 Smart

Specifications

H4B (SCe 1.0)
M135 1.3/1.5
Brand
Smart
Smart
Verdict
ACCEPTABLE
ACCEPTABLE
Reliability
72
72
Years
2014--present
2014--2019
Displacement
999 cc
1332 cc
Layout
I3
I4
Type
Petrol Na
Petrol Na
Power
71 hp
71--109 hp
Known Issues
3
2
Total Risk Cost
€450--€1,150
€300--€1,200

Character

H4B (SCe 1.0)

"Renault H4B in a Smart box. Slow but honest. Simple 3-cyl, no turbo drama. Perfect city runabout."

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

H4B (SCe 1.0) 3

● MODERATE
Thermostat failure €200--€450 50,000 km--100,000 km
○ MINOR
Ignition coil failure €100--€300 40,000 km--80,000 km
○ MINOR
Engine mount vibration €150--€400 60,000 km--120,000 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

H4B (SCe 1.0) 3

ForFour 1.0 W453 2014--present Hatchback ForTwo 1.0 W453 2014--present Hatchback ForTwo Cabrio W453 2016--present Convertible

M135 1.3/1.5 2

ForFour W454 2004--2006 ForFour W454 2005--2006
Full H4B (SCe 1.0) Report Full M135 1.3/1.5 Report