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Smart Mcc reliability and common MOT problems by model

Smart Mcc shows a 17.8% combined MOT failure rate across 91,370 tests in Motintel data. Fortwo has one of the lower high-confidence rates at 11.8%. Fortwo Coupe deserves extra checking at 22.5%.

Data sources: DVSA MOT records, official recall records, and MOT fault wording snapshots (2026-04-27, 2026-04-29, rfr_codes_2025-05-12, failure items 2023). Search-indexed model pages must clear 20,000 MOT tests and 10,000 vehicles.

Most reliable Smart Mcc models in MOT data

#	Model	MOT failure rate	Tests	Vehicles
1	Smart Mcc Fortwo	11.8%	25,719 tests	22,019 vehicles
2	Smart Mcc Forfour	16.0%	27,191 tests	22,073 vehicles
3	Smart Mcc Fortwo Coupe	22.5%	24,388 tests	18,619 vehicles

Smart Mcc models with the highest MOT failure rates

#	Model	MOT failure rate	Tests	Vehicles
1	Smart Mcc Fortwo Coupe	22.5%	24,388 tests	18,619 vehicles
2	Smart Mcc Forfour	16.0%	27,191 tests	22,073 vehicles
3	Smart Mcc Fortwo	11.8%	25,719 tests	22,019 vehicles

Common Smart Mcc MOT problem areas

#	Problem area	MOT notes	Models affected	What to check	High-rate examples
1	Corrosion and structure	9,792 MOT notes	3 models	Inspect sills, subframes, suspension mounts, brake pipes, and previous welding or rust repairs.	Smart Mcc Fortwo Coupe, Smart Mcc Forfour, Smart Mcc Fortwo
2	Suspension and steering	6,464 MOT notes	3 models	Listen for knocks, check uneven tyre wear, and ask whether worn joints or bushes have been replaced.	Smart Mcc Fortwo Coupe, Smart Mcc Forfour, Smart Mcc Fortwo
3	Windscreen, wipers, and mirrors	6,084 MOT notes	3 models	Check the windscreen, wipers, washers, mirrors, chips, cracks, and whether the driver's view is clear.	Smart Mcc Forfour, Smart Mcc Fortwo Coupe, Smart Mcc Fortwo
4	Lights and electrical	4,818 MOT notes	3 models	Test every exterior light, warning lamp, horn, washer, and basic electrical function before buying.	Smart Mcc Fortwo Coupe, Smart Mcc Forfour, Smart Mcc Fortwo
5	Emissions, engine, and exhaust	4,769 MOT notes	3 models	Check cold starts, exhaust smoke, warning lights, service history, and recent emissions repairs.	Smart Mcc Fortwo Coupe, Smart Mcc Forfour, Smart Mcc Fortwo
6	Tyres and wheels	1,317 MOT notes	3 models	Look for matching tyres, legal tread, sidewall damage, wheel damage, and uneven wear.	Smart Mcc Fortwo Coupe, Smart Mcc Fortwo, Smart Mcc Forfour

All Smart Mcc model reports

Model	MOT tests	Vehicles	Failure rate
Forfour	27,191	22,073	16.0%
Fortwo	25,719	22,019	11.8%
Fortwo Coupe	24,388	18,619	22.5%
City Coupe limited data	6,482	4,734	26.8%
Fortwo Cabriolet limited data	5,408	4,134	22.1%
Cabriolet limited data	1,108	842	23.4%
Roadster limited data	1,074	862	19.2%

Models with limited data (fewer than 20,000 tests or 10,000 vehicles) have full reports but are not indexed in search engines until the evidence threshold is met.