Seat Ateca (2018)
2018 Seat Ateca
CarHunch analysed 8,976 real MOT records for the 2018 Seat Ateca. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2018 SEAT ATECA is a solidly reliable buy, with an 89.9% first-time pass rate that sits nearly 10 percentage points above the UK average—petrol versions edge ahead at 90.6% versus diesel at 88.4%. However, 21.9% of these vehicles have suffered a dangerous defect at some point, which is a genuine concern and worth factoring into your inspection checklist.
At a median mileage of just under 38,000 miles for a six-year-old car, these ATECAs have been driven gently on average, suggesting owners have treated them well. The typical car racks up 5.7 advisories and 0.63 failures per MOT, pointing to minor wear items rather than structural problems—focus your pre-purchase inspection on brake components and suspension, but don't expect major surprises.
Petrol vs Diesel
Pass rate difference of 2.2 percentage points — worth knowing if you're choosing between the two.
What to check before buying a 2018 Seat Ateca
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.
- ⚠️ 21.9% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 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 Seat Ateca
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (68%) | 6,138 | 90.6% | 0.6 |
| Diesel (32%) | 2,838 | 88.4% | 0.68 |
Mileage Distribution
Most 2018 Seat Ateca 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 2018 Seat Ateca vehicles fall between 29,585 and 47,309 miles.
2018 Seat Ateca — Still on the Road
Strong survival — 8,640 vehicles still getting MOTs in 2025, 99% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.
MOT History Averages
Most Common MOT Issues — 2018 Seat Ateca
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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43.9%
Offside Front Tyre worn close to legal limit/worn on edge
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43.3%
Nearside Front Tyre worn close to legal limit/worn on edge
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33.3%
Rear Brake pad(s) wearing thin
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24.4%
Nearside Rear Child Seat fitted not allowing full inspection of adult belt ()
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21.3%
Offside Rear Tyre slightly damaged/cracking or perishing
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20.5%
Nearside Rear Tyre slightly damaged/cracking or perishing
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17%
Front Brake pad(s) wearing thin
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16.4%
Nearside Rear Tyre worn close to legal limit/worn on edge
Data covers a 3-year window centred on 2018. Counts include advisories and failures.
Found a specific Seat Ateca?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.