MOT failure rates

Mitsubishi ASX MOT failure rates: what to expect

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

Updated 4th September 2026 DVSA data: Across 28,531 recorded MOT tests, 21.7% failed.

Mitsubishi ASX
Image via Wikipedia, CC-licensed.

The Mitsubishi ASX often faces MOT failures primarily due to issues with its lighting, suspension, and emissions systems. Common problems include faulty bulbs, worn suspension components, and exhaust system leaks. Addressing these issues can vary in cost, but many repairs are manageable for most budgets.

Lighting Issues

One of the most frequent causes of MOT failures for the Mitsubishi ASX is lighting problems. This includes issues such as blown bulbs, misaligned headlights, and malfunctioning indicators. During an MOT, all lights must be operational and correctly aligned to ensure visibility and safety.

Regular checks of the vehicle’s lights can help prevent these issues from arising during the MOT.

Suspension Components

Suspension problems are another common reason for MOT failures in the ASX. Worn or damaged suspension components, such as shock absorbers and bushings, can lead to handling issues and increased tyre wear. MOT testers will check for excessive play or leaks in the suspension system.

Keeping the suspension system in good condition is essential not just for passing the MOT but also for ensuring a comfortable ride.

Emissions Failures

Emissions-related failures are increasingly common in modern vehicles, including the Mitsubishi ASX. The MOT test checks for excessive emissions from the exhaust system. Common culprits include faulty catalytic converters, oxygen sensors, and exhaust leaks.

Regular servicing can help maintain the emissions system and prevent costly repairs.

Brake System Issues

The brake system is critical for safety, and any faults can lead to an MOT failure. Common issues include worn brake pads, damaged discs, and leaks in the brake lines. The MOT test evaluates the effectiveness of the braking system, and any deficiencies must be addressed.

Regular brake checks and timely replacements can help ensure the vehicle remains safe and compliant with MOT standards.

Tyre Condition

Tyres are a vital component of vehicle safety and performance. The MOT test checks for tread depth, sidewall damage, and overall tyre condition. The legal minimum tread depth is 1.6mm, and any tyres below this limit will result in a failure.

Regularly inspecting tyre condition and maintaining proper pressure can help avoid MOT failures related to tyres.

Steering System Problems

Issues with the steering system can also lead to MOT failures for the Mitsubishi ASX. Common problems include worn steering racks, loose components, and misalignment. The steering system must be responsive and free from excessive play to pass the MOT.

Regular maintenance and checks can help ensure the steering system remains in good condition, reducing the likelihood of MOT failures.

Mitsubishi ASX recall record

13 recalls have been issued for the Mitsubishi ASX, between 2012 and 2024.

  1. Mitsubishi ASX Exhaust

    R/2024/416

    Issued 2 December 2024

    On affected vehicles a crack may occur at the welded joint of rear muffler to tail pipe resulting in potential detachment of the tail pipe.

    Remedy:Replace muffler with a muffler fitted with a reinforcement bracket.

    Affects cars built Jan 2011 to Dec 2019

  2. INAPPROPRIATE ECU PROGRAM FOR THE BATTERY DETERIORATION JUDGMENT (STATE OF CHARGE)

    R/2018/347

    Issued 8 January 2019

    Inappropriate ECU program for battery deterioration judgement.

    Remedy:Reprogram the software with the countermeasure software.

    Affects cars built Jun 2010 to Sept 2011

  3. THE BRAKE HYDRAULIC UNIT FUNCTION MAY BE INTERRUPTED

    R/2018/285

    Issued 3 November 2018

    Driver assist programme functions through the hydraulic brake unit may be interrupted.

    Remedy:The ECU will be rewritten with modified software.

    Affects cars built Sept 2017 to Mar 2018

  4. WHERE TAIL PIPE IS WELDED TO THE EXHAUST SILENCER A CRACK MAY APPEAR

    R/2018/247

    Issued 12 October 2018

    Exhaust tailpipe section may crack at silencer weld.

    Remedy:Check and replace silencer if cracked. Fit support bracket if not cracked.

    Affects cars built Jun 2010 to Oct 2017

9 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.

Mitsubishi ASX MOT record

From 28,531 recorded MOT tests, 21.7% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20214977.4%32,440 mi
20201,4677.8%33,139 mi
20191,5818.5%39,628 mi
20182,17313.0%49,637 mi
20173,94117.8%58,821 mi
20163,15318.5%68,000 mi
20154,43421.8%76,540 mi
20143,64127.8%86,008 mi

Most common reasons for failure

  1. Brake pipe damaged or excessively corroded25.3%
  2. Tyre tread depth not in accordance with the requirements24.6%
  3. A suspension pin, bush or joint excessively worn20.9%
  4. a brake lining or pad worn below 1.5mm17.1%
  5. Brake disc or drum excessively weakened, insecure or fractured12.2%

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

Frequently asked questions

What is the Mitsubishi ASX mot?

The Mitsubishi ASX mot refers to the Ministry of Transport test, which checks the vehicle's safety and environmental standards. It's a legal requirement for cars over three years old in the UK.

How often do I need to get my Mitsubishi ASX mot done?

You need to have your Mitsubishi ASX mot done every year once it reaches three years old. It's important to keep up with this to ensure your vehicle remains roadworthy.

What are common reasons for failing the Mitsubishi ASX mot?

Common reasons for failing the mot include issues with lights, brakes, tyres, and emissions. Regular maintenance can help prevent these problems.

Can I drive my Mitsubishi ASX if it fails the mot?

No, you cannot legally drive your Mitsubishi ASX if it fails the mot unless you are taking it to a garage for repairs. It's best to arrange for repairs as soon as possible.

How can I prepare my Mitsubishi ASX for the mot?

To prepare your Mitsubishi ASX for the mot, check the lights, brakes, and tyre condition. It’s also a good idea to ensure that the windscreen wipers and washers are functioning properly.

What should I do if my Mitsubishi ASX mot is due soon?

If your Mitsubishi ASX mot is due soon, book an appointment with an authorised testing centre. Make sure to check your vehicle's condition beforehand to avoid any last-minute issues.

Where can I find a reliable mot testing centre for my Mitsubishi ASX?

You can find a reliable mot testing centre by searching online for local garages that are authorised to conduct mot tests. Reading customer reviews can also help you choose a trustworthy option.

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