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BYD Atto 3 (2023)

647 real MOT outcomes analysed • 9.6% first-time pass rate

2023 BYD Atto 3

CarHunch analysed 647 real MOT records for the 2023 BYD Atto 3. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 2023 BYD ATTO 3 is failing its MOT test at an alarming rate—just 9.6% pass on first attempt versus the UK average of 80%—which is a major red flag for any potential buyer. The dangerous defect rate is mercifully low at 0.8%, but the sheer volume of failures suggests serious quality or build issues affecting this cohort.

These vehicles average only 32,500 miles at test time, which is typical for their age, yet they're still racking up failures at an extraordinary rate; the low failure count per vehicle (0.02) and advisory count (0.1) suggest the problems are concentrated in a subset of cars rather than scattered across the fleet. Before buying a used 2023 ATTO 3, insist on an independent pre-purchase inspection and get a full service history to identify whether the specific car you're looking at is one of the troubled ones.

Below average reliability 70.4% below UK average
9.6%
pass MOT first time
UK average: ~80%
32,510
typical mileage
25,558–38,197 middle half
0.8%
ever had a dangerous defect
recorded at any MOT
0.02
avg MOT failures per car
over 1.3 tests on record

What to check before buying a 2023 BYD Atto 3

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 BYD Atto 3

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying →

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Mileage Distribution

Most 2023 BYD Atto 3 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.

25,558
low mileage
32,510
typical
38,197
high mileage

Half of all 2023 BYD Atto 3 vehicles fall between 25,558 and 38,197 miles.

MOT History Averages

1.3
Avg MOT tests per vehicle
0.02
Avg failures per vehicle
0.1
Avg advisories per vehicle

Found a specific BYD Atto 3?

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

UK