BYD Seal
The BYD Seal MOT pass rate for cars first registered 2021–2026 is 97.3% across 332 official UK DVSA tests. This report then covers more than 95 recorded defect notes for BYD Seal models in that registration band. It shows common faults, MOT pass rates and maintenance trends to help you research the model before you buy.
Unlike a registration check, this report analyses how thousands of similar BYD Seal models have performed at MOT over time — not just one vehicle.
- 97.3%
- MOT pass rateshare of recorded tests that passed
- 332
- MOT tests analysed332 official DVSA records
- 95
- defect notes recorded95 · advisory to dangerous
- 2021–26
- registration yearssnapshot 26 September 2026
A fleet outcome for BYD Seal models registered 2021–2026 — not a reliability score, and not a verdict on one car. Always check the specific vehicle.
Key findings
What the MOT record says about the BYD Seal
- 97.3% MOT pass rate across 332 tests.
- 92% of recorded defect notes relate to owner maintenance.
- Tyres account for the largest volume of recorded MOT issues.
Failure breakdown
How BYD Seal MOT failures break down
Share of recorded defect notes by category in this age band — not MOT tests and not number of vehicles.
- 91.6%Owner maintenance87 notes
- 1.1%Wear & tear1 notes
- 0%Systemic0 notes
- 7.4%Other7 notes
Advisory
74
78% of notes
Minor
2
2% of notes
Major
0
0% of notes
Dangerous
19
20% of notes
Most common owner-maintenance faults
DVSA wording grouped as owner maintenance for this model and age band.
- 1
Tyre worn close to legal limit/worn on edge
59 notes5.2.3 (e)What it means, why it happens, what to check
What it means
- Tread is close to (or at) the legal minimum, or wear is concentrated on an edge. That often points to alignment, pressure or suspension issues as well as simple age.
Why it happens
- Under-inflation, poor alignment, aggressive driving or simply delayed replacement push tread below a safe/legal profile.
Buyer tip
- Measure tread across the full width, check tyre age (DOT date) and look for uneven inner-edge wear.
Severity
- Usually maintenance related
Most common wear & tear faults
DVSA wording grouped as wear and tear for this model and age band.
No wear-and-tear items in this extract.
Most common systemic faults
DVSA wording grouped as systemic patterns for this model and age band.
No systemic items in this extract.
BYD Seal research summary
Based on over 332 official UK MOT tests, BYD Seal models registered between 2021 and 2026 achieve a strong 97.3% MOT pass rate.
The overwhelming majority of recorded MOT defects relate to routine owner maintenance, with tyres accounting for most common faults seen on used examples in this age band.
Recurring systemic faults occur far less frequently in this extract.
Overall, the data suggests that this generation of BYD Seal is more likely to fail MOT due to maintenance items than widespread design faults, making service history and routine upkeep particularly important when buying used. Shoppers comparing a used BYD Seal should treat this research summary as model-level context before inspecting any individual car.
What this report cannot tell you
This report describes model-level MOT trends, not the condition of any individual vehicle.
Two identical BYD Seal models can have very different maintenance histories.
Use it to understand common patterns before inspecting a specific car — then check that car’s own MOT history.
Year by year
Recent category counts
Defect-note totals by calendar year in the serving extract (not MOT tests, not vehicles, not a prediction).
| Year | Owner maintenance | Wear & tear | Systemic | Other |
|---|---|---|---|---|
| 2025 | 26 | 1 | 0 | 1 |
| 2026 | 61 | 0 | 0 | 6 |
All counts are defect notes.
How we classify MOT faults
We group recorded DVSA defect wording into four research categories to help identify whether issues are more likely to reflect routine maintenance, expected wear, recurring model patterns or miscellaneous inspection outcomes.
- Owner maintenance
- Defects often linked to day-to-day upkeep — tyres, lamps, washers and other items a careful owner can usually prevent or fix promptly.
- Wear & tear
- Age- and mileage-related deterioration that accumulates with normal use, even when a car has been looked after.
- Systemic
- Recurring wording and patterns across the model fleet that may point to design, component or known-model tendencies rather than one careless owner.
- Other
- Inspection outcomes that do not sit cleanly in the three groups above, including mixed or less classifiable defect notes.
Dataset: 332 official UK DVSA MOT tests · 95 defect notes · 2021–2026 registrations · United Kingdom · snapshot 26 September 2026 · aggregated model-level MOT analysis.
Buying a used BYD Seal: practical MOT checks
- 1Measure tyre tread across the full width and check age (DOT date) before you buy.
- 2Ask for a full service history that matches the mileage.
- 3Compare this model with a peer in the same age band, not against a single registration check alone.
- 4Confirm any warning lamps (engine management, ABS, SRS) are investigated, not just cleared.
Frequently asked questions
What is the BYD Seal MOT pass rate for 2021–2026?
- In this extract, BYD Seal shows a 97.3% MOT pass rate across 332 recorded DVSA tests.
What drives most BYD Seal MOT defect notes?
- About 92% of recorded defect notes are classed as owner maintenance, with tyres among the highest-volume items.
Is this the same as checking one registration on GOV.UK?
- No. GOV.UK shows one vehicle. This page aggregates MOT outcomes for the BYD Seal model in a fixed UK registration age band so you can research the model before you shortlist cars.
Go deeper
Run the full BYD Seal MOT report
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