Ford Fiesta ST Line X Ed Turbo Auto (2020)

190 real MOT outcomes analysed • 90.8% first-time pass rate

2020 Ford Fiesta ST Line X Ed Turbo Auto

CarHunch analysed 190 real MOT records for the 2020 Ford Fiesta ST Line X Ed Turbo Auto. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

This 2020 Fiesta ST-Line is significantly more reliable than the typical UK car, with a 90.8% first-time pass rate well above the 80% national average, and only 6.3% of vehicles ever presenting a dangerous defect—a reassuringly low figure. The petrol engine variant maintains that strong 90.9% pass rate across 187 vehicles tested.

At a median mileage of just under 20,000 miles for a four-year-old car, these examples are running light, which partly explains the low failure rate of 0.35 per vehicle. The 2.2 advisories per test suggest minor wear items crop up occasionally, but nothing systemic—if you're buying one, a pre-purchase inspection focusing on suspension and brake wear will protect you against the small percentage of cars that do develop issues.

Generally reliable 10.8% above UK average
90.8%
pass MOT first time
UK average: ~80%
19,627
typical mileage
13,424–28,483 middle half
6.3%
ever had a dangerous defect
recorded at any MOT
0.35
avg MOT failures per car
over 3.3 tests on record

What to check before buying a 2020 Ford Fiesta ST Line X Ed Turbo Auto

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 Ford Fiesta ST Line X Ed Turbo Auto

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 (98%) 187 90.9% 0.35
Other (2%) 3 83.3% 0.33

Mileage Distribution

Most 2020 Ford Fiesta ST Line X Ed Turbo Auto 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.

13,424
low mileage
19,627
typical
28,483
high mileage

Half of all 2020 Ford Fiesta ST Line X Ed Turbo Auto vehicles fall between 13,424 and 28,483 miles.

2020 Ford Fiesta ST Line X Ed Turbo Auto — Still on the Road

Strong survival — 180 vehicles still getting MOTs in 2025, 98% of the peak.

175 180 2023 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

3.3
Avg MOT tests per vehicle
0.35
Avg failures per vehicle
2.2
Avg advisories per vehicle

Found a specific Ford Fiesta ST Line X Ed Turbo Auto?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Ford Fiesta ST Line X Ed Turbo Auto:

2021