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Emergency
KNOWN FAULT · Smart

Automated gearbox, engine management and battery on the smart forfour 454

Sources are not verified in real time and no entry confirms that your car is affected.

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

Has this happened to you?

Anonymous answer, no personal data.

Frequently asked questions

How much does it cost to repair this fault?

No verified estimate; ask the garage for a quote.

A rough figure from the original database, not an up-to-date quote.

Calculate estimate
How is it checked?

Test the automated gearbox slowly and in reverse; test the battery.

What are the 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.

Which cars and years does it affect?
Brands
Smart
Engine / equipment
smart forfour 454 (Mitsubishi petrol and 1.5 cdi)
Period mentioned
2004–2006

Taking it to a garage?

Find garages near you and, before you say yes, check whether the quote is reasonable.

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