MOT failure rates

Kia Stonic MOT failure rates: what to expect

What fails on a Kia Stonic at MOT, how often, and what each fix typically costs.

Updated 4th September 2026 DVSA data: Across 32,169 recorded MOT tests, 9.3% failed.

Kia Stonic
Image via Wikipedia, CC-licensed.

The Kia Stonic is generally a reliable vehicle, but like any car, it can encounter issues that lead to MOT failures. Common problems include issues with lights, brakes, and suspension components. Fixing these problems can vary in cost, but understanding the most frequent failures can help you prepare for your next MOT.

Lights and Electrical Systems

One of the most common reasons for MOT failure on the Kia Stonic is issues with lights and electrical systems. This can include faulty headlights, brake lights, or indicators. The DVSA MOT data indicates that lighting failures are among the top reasons for MOT rejections across many vehicles.

Regular checks of your vehicle’s lights can prevent these issues from arising.

Brakes

Brakes are critical for safety and are often scrutinised during an MOT. Common brake-related failures on the Kia Stonic include worn brake pads, damaged discs, or issues with the brake fluid.

Ensuring your brakes are well-maintained can help you avoid these costly repairs.

Suspension Components

Suspension issues are another common MOT failure point for the Kia Stonic. Problems can arise from worn shock absorbers, damaged springs, or issues with the suspension bushings.

Regularly inspecting your suspension can help identify problems early, potentially saving you from more significant expenses later.

Tyres

Tyre condition is crucial for both safety and performance, making it a common MOT failure point. The Kia Stonic may fail if the tread depth is below the legal limit or if there are visible signs of damage, such as bulges or cuts.

If multiple tyres need replacement, this cost can add up quickly. Regularly checking your tyre pressure and tread depth can help ensure they remain in good condition.

Exhaust Emissions

Exhaust emissions are a critical aspect of the MOT test, and the Kia Stonic can fail if it emits higher levels of pollutants than allowed. This issue can stem from a faulty catalytic converter or exhaust system leaks. The DVSA MOT data suggests that emissions-related failures are increasingly common as environmental regulations tighten.

Regular servicing can help keep your emissions within legal limits.

Steering System

The steering system is vital for vehicle control and is often inspected during an MOT. Common failures in the Kia Stonic can include issues with power steering fluid leaks or worn steering components.

Regular checks of the steering system can help catch problems early, ensuring safer driving and potentially lower repair costs.

Maintaining your Kia Stonic and addressing these common issues proactively can help you pass your MOT without any surprises. Regular servicing and checks can save you money and ensure your vehicle remains safe and reliable on the road.

Kia Stonic recall record

1 recall has been issued for the Kia Stonic, in 2023.

  1. The mesh filter inside the tandem pump may block causing insufficient oil supply and a risk of vacuum pump failure. If the pump fails there will be no vacuum assistance and the possibility of increased braking distance when applying the brake pedal.

    R/2023/255

    Issued 29 September 2023

    The mesh filter inside the tandem pump may block causing insufficient oil supply and a risk of vacuum pump failure. If the pump fails there will be no vacuum assistance and the possibility of increased braking distance when applying the brake pedal.�

    Remedy:Remove the mesh filter and check the vacuum pump for damage if damaged replace the pump/drive belt.

    Affects cars built Jun 2019 to Apr 2020

A recall applies to a build range, not to every car of this model. Check a registration to see whether one specific vehicle has an outstanding recall.

Kia Stonic MOT record

From 32,169 recorded MOT tests, 9.3% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20233065.2%18,095 mi
20225,9986.1%20,713 mi
20215,9537.3%25,849 mi
20204,4319.3%29,517 mi
20198,05910.7%38,568 mi
20186,70711.8%47,580 mi
201771512.6%52,256 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements29.9%
  2. a brake lining or pad worn below 1.5mm29.1%
  3. A tyre seriously damaged18.1%
  4. Brake disc or drum excessively weakened, insecure or fractured13.6%
  5. Wiper blade missing or obviously not clearing the windscreen9.4%

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

Kia Stonic official figures

Median across 17 variants on sale, petrol, petrol electric.

Combined economy
49.6 mpg
WLTP median across variants
CO2 emissions
128 g/km
Sets the first-year tax rate

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

Frequently asked questions

What is the Kia Stonic mot requirement in the UK?

In the UK, the Kia Stonic must have its MOT test conducted every 12 months once it is three years old. This ensures that the vehicle meets safety and environmental standards.

How can I check if my Kia Stonic is due for an MOT?

You can check if your Kia Stonic is due for an MOT by visiting the official UK government website. You will need to enter your vehicle registration number to find the MOT expiry date.

What are common reasons for Kia Stonic to fail an MOT?

Common reasons for a Kia Stonic to fail an MOT include issues with brakes, lights, tyres, and emissions. Regular maintenance can help prevent these problems.

Can I drive my Kia Stonic if it has failed its MOT?

You cannot legally drive your Kia Stonic if it has failed its MOT, unless you are driving it to a pre-booked appointment for repairs. Otherwise, you should not use the vehicle on public roads.

What should I do if my Kia Stonic passes its MOT?

If your Kia Stonic passes its MOT, you will receive a certificate confirming its roadworthiness. Make sure to keep this document safe and check when the next MOT is due.

Are there any exemptions for the Kia Stonic regarding the MOT?

The Kia Stonic is not exempt from the MOT test as it is a modern vehicle. All cars over three years old must have a valid MOT certificate in the UK.

How can I prepare my Kia Stonic for its MOT?

To prepare your Kia Stonic for its MOT, ensure that all lights are working, tyres are properly inflated and have sufficient tread, and that the windscreen wipers and washers are functioning. Regular servicing can also help identify potential issues before the test.

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