Smart Eq Forfour Premium (2021)
2021 Smart Eq Forfour Premium
CarHunch analysed 383 real MOT records for the 2021 Smart Eq Forfour Premium. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2021 Smart EQ Forfour Premium passes its MOT first time in 85.4% of cases, which is 5.4 percentage points above the UK average—a solid result that suggests these are well-maintained vehicles overall. The dangerous defect rate of 5% is reassuringly low, so structural or safety issues are uncommon in this cohort.
At just under 12,800 miles median, these cars are lightly used for their age, which explains why they average only 0.26 failures per vehicle. The 1.1 advisories per car point to minor wear rather than serious mechanical trouble—typical stuff for a small electric city car at this mileage. Before buying, get a full pre-purchase inspection to confirm the battery health and charging system, since EV-specific faults won't always show up on a standard MOT.
What to check before buying a 2021 Smart Eq Forfour Premium
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Smart Eq Forfour Premium
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2021 Smart Eq Forfour Premium vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2021 Smart Eq Forfour Premium vehicles fall between 8,718 and 18,193 miles.
MOT History Averages
Found a specific Smart Eq Forfour Premium?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.
Other model years — Smart Eq Forfour Premium: