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BYD Dolphin MOT Check

MOT pass rates, common failures, and reliability data for the BYD Dolphin. Check any Dolphin by registration number below.

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90.2%

Avg Pass Rate

-0.0%

vs BYD Avg

1

Year Ranges

Excellent

Reliability

BYD Dolphin — MOT Reliability Overview

The BYD Dolphin has an average MOT pass rate of 90.2%, which is 0.0 percentage points below the BYD brand average of 90.2%. This is a strong result, indicating that the Dolphin is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

The most common reasons a BYD Dolphin fails its MOT are lamps, reflectors and electrical equipment, suspension, brakes. If you are preparing your Dolphin for its MOT, checking these areas first could save you a retest fee. Our detailed fault analysis includes estimated repair costs for each failure type.

Before buying a used BYD Dolphin, we recommend checking the full MOT history, write-off status, outstanding finance, and stolen vehicle status. These checks can be done for free using the registration number.

MOT Pass Rate by Year

How the BYD Dolphin performs at MOT across different model years.

2023

Based on 2,000 vehicles

90.2%Excellent
BYD average: 90.2%
Dangerous Defects

0.7%

Retest Rate

7.0%

Top MOT Failures — BYD Dolphin

The most common reasons a BYD Dolphin fails its MOT, aggregated across all year ranges.

1

Lamps, reflectors and electrical equipment

10.0%
2

Suspension

8.0%
3

Brakes

7.2%
4

Tyres

8.5%
5

Exhaust, fuel and emissions

1.8%
BYD Dolphin Common Faults & Repair Costs

Where Failures Occur

The areas of the vehicle most commonly flagged during MOT inspections.

Front

26.0%

Rear

24.0%

Offside

18.0%

Other BYD Models

Compare MOT reliability across BYD models.

BYD Atto 3

89.5% pass rate

BYD Seal

91.0% pass rate

Useful MOT Guides

Common MOT Failures

The most common reasons UK vehicles fail their MOT — and how to prepare.

MOT Checklist

Pre-MOT checklist to improve your chances of passing first time.

Advisory vs Failure

Understanding the difference between MOT advisories and failures.

See detailed fault analysis for BYD Dolphin

BYD Dolphin — Frequently Asked Questions

Common questions about the BYD Dolphin MOT and reliability.

What is the MOT pass rate for the BYD Dolphin?
The average MOT pass rate for the BYD Dolphin is 90.2% compared to the BYD average of 90.2%. Pass rates vary by year — check the year-by-year breakdown on this page for details.
What are the most common MOT failures on a BYD Dolphin?
The most common MOT failures on the BYD Dolphin are: Lamps, reflectors and electrical equipment (10.0%), Suspension (8.0%), Brakes (7.2%). These are the components most likely to cause an MOT failure.
Is the BYD Dolphin reliable?
With an average MOT pass rate of 90.2%, the BYD Dolphin is rated as "Excellent" for reliability. This is a strong result suggesting good build quality and fewer common defects.
How do I check the MOT history of a BYD Dolphin?
Enter the vehicle's registration number in the search box at the top of this page. You will instantly see the complete MOT history including every test result, mileage readings, advisories, and dangerous defects — completely free.
What mileage should I expect on a BYD Dolphin?
Mileage data for the BYD Dolphin is available in the detailed breakdown on this page.

Check Your BYD Dolphin's MOT History

Enter the registration number for the full MOT history — free and instant.

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