MOT failure rates

Fiat 500 MOT failure rates: what fails, what to fix

What the DVSA MOT data shows for the Fiat 500. The most common failure categories and what each one typically costs to put right.

Updated 4th September 2026 DVSA data: Across 340,188 recorded MOT tests, 27.1% failed.

Fiat 500
Image via Wikipedia, CC-licensed.

Fiat 500 owners should be aware of common MOT failure patterns to help maintain their vehicles. This article focuses on the Fiat 500’s MOT failure rates, highlighting what typically fails and the costs associated with repairs.

TL;DR

The Fiat 500 commonly fails its MOT due to issues with brakes, suspension, lighting, and emissions. Older models (5-10 years) have higher failure rates, with repair costs ranging from £50 to over £600 depending on the issue.

Common MOT Failure Categories

The Fiat 500 often fails its MOT in several key areas. The most prevalent issues include brakes, suspension, lighting, and emissions. Brakes frequently fail due to worn pads or discs, while suspension problems often arise from worn shock absorbers or bushings. Lighting failures, such as blown bulbs or misaligned headlights, are also common. Emissions failures can occur due to problems with the exhaust system or engine management, which can be costly to fix.

Age-by-Age Fail Rate Trajectory

The failure rate of the Fiat 500 tends to increase with age. Models that are 5-10 years old often experience more failures compared to newer ones. The DVSA data indicates that failure rates for these older vehicles can exceed 30%. Regular maintenance can help reduce these rates, and owners are encouraged to keep up with service schedules to prevent issues from escalating.

Typical Costs for Repairs

Repair costs for common MOT failures vary. Suspension repairs can also fall within this price range, depending on whether components like shock absorbers or springs need replacing.

Quick Fixes vs Structural Issues

Many Fiat 500 MOT failures can be resolved with quick fixes. Simple tasks such as replacing bulbs or adjusting headlights are often inexpensive and straightforward. However, structural issues like rust and corrosion can lead to costly repairs, particularly in older models. Owners should keep an eye on the condition of their vehicle’s bodywork, especially around the wheel arches and undercarriage, where rust is more likely to develop.

What people are asking

Is the Fiat 500 a reliable car?

The Fiat 500 has mixed reviews on reliability. While some owners report a dependable driving experience, others have encountered various issues, particularly with older models. Regular maintenance and addressing problems early can help improve reliability.

Is Fiat 500 cheap to repair?

Repair costs for the Fiat 500 can be reasonable for minor issues, such as bulb replacements or simple electrical faults. However, some specific problems, like those related to the engine or transmission, can be more expensive, so it’s wise to factor in potential repair costs when considering ownership.

What year to avoid Fiat 500?

Many buyers recommend avoiding the 2012 and 2013 models due to frequent issues reported by owners. These years have been noted for problems with electrical systems and interior quality, which can lead to dissatisfaction among drivers.

What to look out for when buying a used Fiat 500?

When considering a used Fiat 500, check for signs of rust, particularly on the bodywork and undercarriage. It’s also important to review the service history for regular maintenance and to be aware of common problems like electrical faults and wear on interior components.

What owners say

A common theme among these discussions is the car’s interior quality. Some owners have found the interior materials to be flimsy, reporting issues like brittle plastic and problems with door handles and trim pieces. This can lead to a perception of lower build quality, especially in older models. Many Fiat 500 owners share their experiences.

Reliability is another frequent topic. Buyers in UK communities have flagged that regular maintenance is crucial to avoiding these problems. Owners have noted that while some Fiat 500s run smoothly, others have faced significant issues, particularly with the engine and electrical systems.

When it comes to repairs, many owners report that while minor fixes can be inexpensive, more serious issues can lead to higher costs. For instance, problems with the fuel injectors or clutch vibrations have been highlighted as costly repairs, which can be a concern for potential buyers.

Finally, first-time car buyers often discuss the Fiat 500 as a fun and stylish option. Many appreciate its compact size and ease of driving, making it a popular choice for city dwellers. However, some users caution that while it is enjoyable to drive, potential buyers should be aware of the maintenance and repair costs associated with ownership.

Fiat 500 MOT record

From 340,188 recorded MOT tests, 27.1% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20237065.4%24,448 mi
202211,9476.9%16,776 mi
202112,5359.0%22,074 mi
202013,49311.5%24,953 mi
201920,88016.2%29,584 mi
201823,19919.6%35,556 mi
201722,25322.5%42,258 mi
201630,87127.6%46,963 mi

Most common reasons for failure

  1. A suspension pin, bush or joint excessively worn29.7%
  2. Tyre tread depth not in accordance with the requirements24.6%
  3. A tyre seriously damaged17.6%
  4. A spring or spring component fractured or seriously weakened15.5%
  5. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage12.6%

Figures cover every Fiat 500 tested in the DVSA dataset, not this specific car. Check a registration for the actual history of one vehicle.

Fiat 500 official figures

Median across 3 variants on sale, electricity.

Electric range
175 miles
Manufacturer WLTP figure

Official figures for new cars. Real economy varies with driving, load and conditions.

Frequently asked questions

What are the most common reasons for Fiat 500 MOT failures?

The most common failure categories are brakes, suspension, lighting, and emissions.

How does the age of the Fiat 500 affect its MOT failure rate?

Older models tend to have higher failure rates, particularly in the 5-10 year age range.

Are there quick fixes for Fiat 500 MOT failures?

Yes, issues like replacing bulbs or adjusting headlights are usually quick and inexpensive.

What structural issues should I be aware of?

Rust and corrosion, particularly in older models, can lead to significant structural repairs.

Is the Fiat 500 a reliable car?

The Fiat 500 has mixed reviews on reliability, with some owners reporting issues while others find it dependable.

Is Fiat 500 cheap to repair?

Repair costs can be reasonable for minor issues, but some specific problems can be more expensive.

What year to avoid Fiat 500?

Many buyers recommend avoiding the 2012 and 2013 models due to frequent issues reported.

What to look out for when buying a used Fiat 500?

Check for rust, service history, and common problems like electrical faults and interior wear.

Sources