2004 Smart Cabriolet: common problems and MOT failures
What MOT testers find on the Smart Cabriolet first registered in 2004: we looked at the 264 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 264 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.
Common 2004 Smart Cabriolet MOT failures and advisories
The share of 2004 Smart Cabriolet MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Lights and electrics37% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Brakes31% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Suspension30% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Tyres28% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Wipers, windscreen and mirrors14% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Oil and fluid leaks12% of testsRough price £80–£600
At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.
Questions to ask the seller before buying a 2004 Smart Cabriolet
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Can I see the service history and receipts for any big jobs?
Looking at a Smart Cabriolet?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Smart Cabriolet compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2012 | 118 | Brakes 37% |
| 2011 | 169 | Tyres 31% |
| 2010 | 129 | Tyres 35% |
| 2009 | 166 | Brakes 38% |
| 2008 | 197 | Brakes 38% |
| 2007 | 134 | Brakes 39% |
| 2006 | 190 | Brakes 38% |
| 2005 | 227 | Brakes 41% |
| 2003 | 403 | Brakes 35% |
| 2002 | 195 | Suspension 34% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Smart Cabriolet cars first registered in 2004. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score