Skip to main content
GB
MOT
Checkup

BYD Reliability UK 2026

How reliable is a BYD? Here’s a data-led reliability profile based on first-time MOT pass rates, model-level breakdown, top failure categories, and a buyer’s verdict.

By Bertram Sargla, Founder, MOT CheckupLast updated: 2026-05-16Data sourced from DVSA

BYD reliability snapshot: first-time MOT pass rate 90.1% (+26.1 pp vs the UK average of 64%). Across 3 BYD models, the typical dangerous-defect rate is 0.75% and the average retest rate is 7.1%. BYD sits well above the UK average on first-time MOT performance. For a buyer focused on long-term reliability, it's a solid badge — though individual mileage and service history still matter more than brand.

BYD first-time MOT pass rate

90.1%

Implied failure rate: 9.9% · UK average pass rate: 64%

vs UK average

+26.1 pp

Dangerous defects

0.75%

Retest rate

7.1%

How BYD compares to the UK average

The UK national first-time MOT pass rate is 64%, with about 36% of cars failing on the first attempt.BYD’s pass rate of 90.1% is 26.1 percentage points above that benchmark. That ’s a brand-average figure — individual BYD models range from the high 60s to above 90%, so model and age matter more than the badge.

BYD pass rate90.1%
UK average pass rate64%

Most reliable BYD models

Ranked by first-time MOT pass rate across our reliability dataset. Restricted to models with meaningful sample size.

1

BYD Atto 3

2022–present · sample ≈3k

89.5%

Most problematic BYD models

The BYD models in our dataset with the lowest first-time MOT pass rates. A low pass rate doesn’t mean a bad car — older platforms naturally accumulate wear faster — but it does mean a pre-purchase MOT history check is essential.

1

BYD Atto 3

2022–present · sample ≈3k

89.5%

Run a free MOT check on a specific BYD

Brand averages set expectations — a single car’s history is what actually decides whether it’s worth buying.

UK

Free instant MOT history check at /free-mot-check.

Top MOT failure categories for BYD

Aggregated across 3 BYD models in our dataset, weighted by sample size.

1

Lamps, reflectors and electrical equipment

10.2%
2

Tyres

8.6%
3

Suspension

8.1%
4

Brakes

7.4%
5

Exhaust, fuel and emissions

1.8%

Related reading

BYD MOT check

Per-model pass rates and free registration lookup.

BYD common faults

Detailed fault list and indicative repair costs.

BYD pass rate 2025

Most-recent year-keyed pass rate analysis.

Polestar reliability

Brand often cross-shopped against BYD.

Genesis reliability

Brand often cross-shopped against BYD.

Tesla reliability

Brand often cross-shopped against BYD.

BYD reliability — FAQ

Is BYD a reliable car brand in the UK?
BYD's first-time MOT pass rate of 90.1% is above the UK national average of 64%, putting it in the stronger half of brands for MOT reliability. We track 3 BYD models in our dataset.
What is the most reliable BYD model for MOT?
Based on first-time MOT pass rates, the most reliable BYD models in our dataset are: BYD Atto 3 (89.5%). Newer EV variants tend to score highest because they avoid emissions-related failures entirely.
Which BYD models fail their MOT most often?
In our dataset, the BYD models with the lowest first-time MOT pass rates are: BYD Atto 3 (89.5%). These tend to be older or higher-mileage models; the same name in a newer year often performs noticeably better.
What are the most common MOT failures on a BYD?
Aggregated across BYD models, the most common MOT failure categories are: lamps, reflectors and electrical equipment (10.2%), tyres (8.6%), suspension (8.1%). These align with the national pattern; lighting, suspension, and tyre defects dominate UK MOT failures across most brands.

Check a BYD’s MOT history

Free, instant, no signup. Every test result, advisory, and mileage reading since 2005.

UK

Free MOT check

Source: MOT Checkup analysis of DVSA MOT test data. Brand-average pass rate is sample-size weighted across 3 BYD models in our dataset. Individual cars vary considerably — always check the specific registration’s MOT history before buying.