MOT failure rates

Subaru Impreza MOT failure rates: what to expect

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

Updated 4th September 2026 DVSA data: Across 15,306 recorded MOT tests, 20.7% failed.

Subaru Impreza
Image via Wikipedia, CC-licensed.

The Subaru Impreza is a popular choice among UK drivers, but like any vehicle, it can encounter issues that may lead to MOT failures. Common problems include suspension issues, emissions failures, and brake system faults. Addressing these issues can vary in cost, but understanding them can help you prepare for your MOT.

Suspension Problems

Suspension issues are among the most frequent reasons for MOT failures in the Subaru Impreza. Worn-out shock absorbers or damaged springs can lead to poor handling and excessive wear on tyres.

Regular maintenance can help prolong the life of your suspension components. Look out for signs such as unusual noises when driving over bumps or a bouncy ride, which can indicate that your suspension needs attention. Addressing these issues early can save you money in the long run.

Emissions Failures

Emissions failures are another common issue that can lead to an MOT failure for the Subaru Impreza. Problems with the exhaust system, including a faulty catalytic converter or worn-out oxygen sensors, can result in higher emissions than allowed.

To avoid emissions-related issues, ensure that your vehicle’s exhaust system is regularly checked and maintained. Keeping the engine in good condition and using quality fuel can also help reduce emissions and improve overall performance.

Brake System Faults

Brake system faults are critical issues that can lead to an MOT failure. Common problems include worn brake pads, damaged discs, or issues with the brake lines.

It is essential to monitor your braking performance regularly. If you notice any unusual noises, vibrations, or a decrease in braking efficiency, it is crucial to have your brakes inspected promptly. Regular maintenance can help ensure your brake system remains in good working order.

Tyre Condition

Tyre condition is a significant factor in MOT testing, and the Subaru Impreza is no exception. Worn or damaged tyres can lead to a failed MOT.

To maintain good tyre condition, regularly check the tread depth and look for any signs of damage, such as bulges or cuts. Proper inflation and regular rotations can also help extend the life of your tyres, ensuring they perform well and keep you safe on the road.

Lighting and Signalling Issues

Lighting and signalling issues are another common cause of MOT failures for the Subaru Impreza. Faulty bulbs, broken lenses, or issues with the wiring can lead to problems during testing.

Regularly inspecting your vehicle’s lights can help prevent failures. Ensure that all lights are functioning correctly, including headlights, brake lights, and indicators. If you notice any dimming or flickering, it may be time to replace the bulbs or check the wiring.

Bodywork and Structural Integrity

While less common, bodywork and structural integrity issues can also lead to MOT failures. Rust, corrosion, or damage to the chassis can be problematic.

Keeping your Subaru Impreza clean and protected from the elements can help prevent rust and corrosion. Regular inspections of the bodywork can help identify any issues early, allowing for timely repairs and maintaining the vehicle’s overall integrity.

By being aware of these common MOT failures and their associated costs, Subaru Impreza owners can take proactive steps to ensure their vehicles remain roadworthy and compliant with UK regulations. Regular maintenance and inspections can help prevent costly repairs and keep your car in excellent condition.

Subaru Impreza recall record

14 recalls have been issued for the Subaru Impreza, between 2004 and 2022.

  1. THE ELECTRONIC PARK BRAKE CONNECTOR MAY DISCONNECT

    R/2022/260

    Issued 1 September 2022

    The electronic park brake connector may disconnect.

    Remedy:Inspect the electronic park brake connector and if necessary fit a retaining clip.

    Affects cars built May 2014 to Nov 2018

  2. POTENTIAL FAILURE OF THE IGNITION COIL MODULE CAUSING ENGINE STALL AND A NONE START CONDITION

    R/2021/353

    Issued 1 November 2021

    Ignition coils may short circuit and fail.�

    Remedy:Replace all ignition coils. If a misfire DTC is stored replace the front exhaust pipe.�

    Affects cars built Sept 2016 to Oct 2019

  3. BRAKE HOSE FITTING CAULKING AREA HAS INSUFFICIENT SEALING

    R/2020/315

    Issued 15 November 2020

    Vehicles are equipped with brake hose fittings with insufficient sealing.

    Remedy:Replace affected brake hoses with a countermeasure part.

    Affects cars built Jul 2016 to Aug 2018

  4. DUE TO IMPROPER ECM PROGRAMMING UNDER CERTAIN CIRCUMSTANCES THE IGNITION COIL MAY BE ENERGIZED LONGER THAN DESIGNED AFTER THE ENGINE IS OFF

    R/2020/316

    Issued 15 November 2020

    Possible engine stall and restart failure.

    Remedy:Re-programme the engine control module and replace if required the ignition coil.

    Affects cars built Sept 2016 to Oct 2019

10 older recalls not shown.

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.

Subaru Impreza MOT record

From 15,306 recorded MOT tests, 20.7% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20182009.0%42,164 mi
201521315.5%62,832 mi
201071723.7%89,140 mi
200969521.1%89,419 mi
200893322.8%96,334 mi
20071,64623.1%92,198 mi
20061,57120.1%97,923 mi
20052,08121.1%104,314 mi

Most common reasons for failure

  1. A suspension pin, bush or joint excessively worn29.0%
  2. The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired22.2%
  3. A suspension component excessively damaged or corroded19.5%
  4. Tyre tread depth not in accordance with the requirements16.8%
  5. A tyre seriously damaged12.5%

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

Frequently asked questions

What is an MOT for a Subaru Impreza?

An MOT is a mandatory annual test for vehicles in the UK, including the Subaru Impreza, to ensure they meet safety and environmental standards.

How often does my Subaru Impreza need an MOT?

Your Subaru Impreza needs an MOT test every 12 months once it is three years old. It is important to keep track of the expiry date.

What are common reasons for Subaru Impreza MOT failures?

Common reasons for MOT failures include issues with brakes, lights, emissions, and tyre condition. Regular maintenance can help prevent these problems.

Can I drive my Subaru Impreza if the MOT has expired?

No, you cannot legally drive your Subaru Impreza on public roads if the MOT has expired, unless you are driving it to a pre-booked MOT appointment.

How can I prepare my Subaru Impreza for its MOT?

To prepare, check the lights, brakes, tyres, and fluid levels. It is also a good idea to ensure the windscreen wipers and mirrors are in good condition.

Where can I get an MOT for my Subaru Impreza?

You can get an MOT for your Subaru Impreza at any authorised MOT testing centre. Many garages offer this service, so you can choose one that is convenient for you.

What should I do if my Subaru Impreza fails its MOT?

If your Subaru Impreza fails its MOT, you will receive a list of issues that need to be fixed. You can have the repairs done at the same garage or another one before retesting.

Is there a grace period for renewing my Subaru Impreza's MOT?

There is no official grace period for renewing an MOT. It is best to renew it before the expiry date to avoid any legal issues.

Sources