M135 1.3/1.5
Smart · M135 1.3/1.5 (3A9-series)
2014–2019
"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."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
CVT jerkiness (ForTwo)
▸Jerky at low speed
CVT twinamic on ForTwo. Software update helps.
CVT twinamic — software update. Νευρικό στις χαμηλές.
Timing chain tensioner wear
▸Rattle on cold start
3A9 engine chain tensioner.
Τεντωτήρας αλυσίδας — €300-700.
Models with M135 1.3/1.5 2
Other Smart Engines
Tuning Potential
Brabus 1.5T: limited aftermarket
Frequently Asked Questions
Is the Smart M135 1.3/1.5 reliable?
The Smart M135 1.3/1.5 scores 72/100 with a verdict of ACCEPTABLE. It has 2 documented issues with total repair costs between €300 and €1,200.
What are the common problems with the M135 1.3/1.5?
The most common issues are:
- CVT jerkiness (ForTwo) — moderate, repair cost €0–€500, 40,000 km–100,000 km
- Timing chain tensioner wear — moderate, repair cost €300–€700, 100,000 km–180,000 km
What cars use the Smart M135 1.3/1.5?
How much does it cost to repair the M135 1.3/1.5?
Total potential repair costs for all 2 known issues range from €300 to €1,200. The most expensive issue is typically .
What years was the M135 1.3/1.5 produced?
The Smart M135 1.3/1.5 was produced from 2014 to 2019. It is a 1332cc I4 petrol na engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.