Common Problems with the
2007 Smart Fortwo (451)

We've identified 2 known issues that can affect the 2007 Smart Fortwo (451). 1 of these are serious faults that could be expensive to repair.

Known Issues

Serious

Moderate

Minor

The 2007 period has an average number of reported issues compared to other Smart Fortwo (451) year periods.

All Known Issues

SeriousElectrics & Electronics

In the UK, water can enter the cabin via the door seals or heater intake and track down to the SAM unit (located in the passenger footwell).

Most affected: All RHD models

Estimated cost: £500–£1,000Affects: 2007–2014Often appears around: Any age

ModerateGearbox & Transmission

The actuator that operates the clutch can seize or wear out, leading to jerky gear changes or failure to select drive.

Most affected: All automated manual models

Estimated cost: £300–£600Affects: 2007–2014Often appears around: 40,000–70,000 miles

✓Listen for a "creaking" noise from under the car when the ignition is turned on

✓On MHD (Mild Hybrid Drive) models, check that the starter-generator belt and tensioner have been updated to the latest revision.
✓Test the air conditioning thoroughly; the pipes are prone to chafing and leaking refrigerant.
✓Look for evidence of "clutch teaching" or adaptation in the service history to ensure smooth shifts.