KNOWN FAULTS · Smart
Known faults for the Smart forfour (454).
2004–2006 · Petrol / Diesel
Sources are not verified in real time and no entry confirms that your car is affected.
Buying it used?Which engine has the fewest documented faults, which recalls to ask the seller about and what to look for on the test drive.Before you buy
1 known fault with sources
Engines: 1.1 / 1.3 / 1.5 (Mitsubishi) (Petrol) · 1.5 cdi (OM639) (Diesel)
Applies if: Weak points of this model from inspections, breakdown statistics and recalls; anything specific to one engine is stated in the sheet.
Automated gearbox, engine management and battery on the smart forfour 454Known weak points
- Engine / equipment
- smart forfour 454 (Mitsubishi petrol and 1.5 cdi)
- Period mentioned
- 2004–2006
- Symptoms
- A six-speed automated gearbox (Softouch) that jumps out of gear, lurches at low speed or sticks in a gear; failed clutch or actuator; engine management that fails and strands the car; a short-lived starter battery; brakes and suspension worn with age.
- Possible cause described
- It is almost identical to the Mitsubishi Colt and, according to CarWiki, reliable apart from these points. Honest John records cases of a replaced actuator and a failed ECU afterwards.
- Check for the garage
- Test the automated gearbox slowly and in reverse; test the battery.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
CarWiki: known problems of the smart forfourHonest John (archive): smart forfour (2004), what to watch out for
View full entryEngines for this model
- 1.1 / 1.3 / 1.5 (Mitsubishi)Petrol
- 1.5 cdi (OM639)Diesel