Smart Common MOT Faults

The most common MOT faults across all Smart models are: Lamps, reflectors and electrical equipment (14.1%), Suspension (11.3%), Brakes (10.1%). These categories account for the majority of MOT failures on Smart vehicles. Specific fault rates vary by model — check individual model pages for detailed breakdowns.

The average MOT pass rate across all Smart models is 82.2%, which is 0.2 percentage points above the national average of 82%. The best-performing model is the #1 at 88.2%, while the Fortwo has the lowest pass rate at 75.8%.

Based on MOT pass rate data, the most reliable Smart is the #1 with a pass rate of 88.2%. This is rated "Excellent" for reliability. However, reliability depends on many factors including age, mileage, and maintenance history — always check a specific vehicle's MOT history before purchasing.

Repair costs for common Smart MOT faults vary by category. Lighting faults typically cost £20-£80, suspension issues range from £150-£500, brake repairs are usually £100-£400, tyre replacements run £50-£150 per tyre, and exhaust/emissions work can cost £80-£350. These are typical UK garage prices — costs may vary depending on the specific model and your location.