MOT failure rates

Mazda CX-5 MOT failure rates: what fails, what to fix

What the DVSA MOT data shows for the Mazda CX-5. The most common failure categories and what each one typically costs to put right.

Updated 4th September 2026 DVSA data: Across 71,845 recorded MOT tests, 16.4% failed.

Mazda CX-5
Image via Wikipedia, CC-licensed.

TL;DR

Mazda CX-5 vehicles commonly face MOT failures in brakes, suspension, lighting, and emissions. Older models, particularly those aged 6-10 years, have higher failure rates. Repair costs can vary, with brake repairs typically between £150-£300 and suspension repairs ranging from £200-£500.

Common MOT Failure Categories

The Mazda CX-5 often fails its MOT in key areas. The most frequent issues include brakes, suspension, lighting, and emissions. These categories account for the majority of failures reported in DVSA data.

As the CX-5 ages, its failure rate tends to increase. Models between 6 to 10 years old experience a notable rise in failures, particularly related to suspension and braking systems. This trend highlights the importance of regular maintenance as the vehicle ages.

Cost of Repairs

Repair costs can vary significantly based on the type of failure. Brake repairs typically range from £150 to £300, depending on whether pads or discs need replacing. Suspension issues can be more expensive, with costs ranging from £200 to £500. Emissions failures may require more in-depth diagnostics and repairs, which can also add to the overall cost.

Quick Fixes vs Structural Issues

Many common failures can be resolved with quick fixes. For instance, replacing a blown bulb is often inexpensive and straightforward. However, structural issues, such as rust or corrosion, can lead to serious problems. These issues are more costly to repair and can result in a failed MOT if not addressed.

What people are asking

What are the main problems of the Mazda CX-5?

Common problems include issues with the diesel particulate filter (DPF), fuel injectors, and occasional electrical faults. Owners have reported that these issues can lead to performance problems if not addressed promptly.

Is a Mazda CX-5 a reliable car?

Overall, the Mazda CX-5 is considered a reliable vehicle, but some owners report specific issues with earlier models. Many find that regular maintenance helps maintain its reliability over time.

What years to avoid when buying a Mazda CX-5?

Buyers often advise caution with the 2012 and 2013 models due to reported mechanical issues. These years have been highlighted for problems that could affect long-term ownership satisfaction.

Which is more reliable, RAV4 or CX-5?

While both vehicles are known for reliability, some owners suggest the RAV4 may have a slight edge based on long-term performance. However, many CX-5 owners are satisfied with their vehicle’s dependability.

What owners say

Mazda CX-5 owners often share their experiences regarding reliability and common faults in various online communities. These problems can lead to performance drops and increased emissions, which may affect MOT results. Many users report that while the CX-5 is generally reliable, some have encountered issues with the fuel injectors, particularly in older models.

Another common theme among owners is the suspension system. This wear can lead to MOT failures, making regular checks essential for maintaining performance and safety. Users mention that suspension components can wear out over time, especially in models aged 6-10 years.

When it comes to value, many owners appreciate the CX-5’s balance of performance and comfort. Buyers in UK communities have flagged that the CX-5 holds its value well compared to some competitors. Discussions highlight that while it may not be the cheapest SUV on the market, its reliability and driving experience often justify the price.

However, some owners caution against specific model years. This has led some potential buyers to consider newer models or those with a more robust service history. Insights suggest that the 2012 and 2013 models may have more frequent issues, particularly with the DPF and electrical components.

Overall, the Mazda CX-5 has a strong following, with many owners praising its driving dynamics and comfort. Yet, like any vehicle, it is important to stay informed about common issues and ensure regular maintenance to avoid potential MOT failures.

Mazda CX-5 recall record

8 recalls have been issued for the Mazda CX-5, between 2017 and 2022.

  1. CATALYTIC REDUCTION (SCR) SYSTEM WIRING MAY BECOME DAMAGED BY CONTAMINATION

    R/2021/439

    Issued 11 January 2022

    Catalytic Reduction (SCR) system wiring may become damaged by contamination

    Remedy:Inspect the SCR harness repair if necessary and fit protector.

    Affects cars built May 2018 to Sept 2020

  2. LOW PRESSURE FUEL PUMP IMPELLER MIGHT BECOME DEFORMED

    R/2021/435

    Issued 4 January 2022

    The impeller in the low-pressure fuel pump may become deformed causing fuel pump failure.

    Remedy:Replace the low-pressure fuel pump with an improved part.

    Affects cars built Apr 2018 to Oct 2018

  3. ONE OR BOTH LED DAYTIME RUNNING LAMPS MAY FLICKER FLASH OR FAIL COMPLETELY

    R/2020/058

    Issued 23 March 2020

    One or both LED daytime Running Lamps may flicker flash or fail completely.

    Remedy:Replace sealing gaskets and install gas absorbing sheets on affected units that operate normally. Replace any faulty units.

    Affects cars built Dec 2014 to Dec 2015

  4. SOOT MAY ACCUMULATE AROUND THE INTAKE SHUTTER VALVE ON THE INLET SIDE OF THE ENGINE

    R/2019/187

    Issued 25 July 2019

    Soot may accumulate around the intake shutter valve on the inlet side of the engine.

    Remedy:Check clean or replace the intake shutter valve and update software.

    Affects cars built Jan 2012 to Jun 2018

4 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.

Mazda CX-5 MOT record

From 71,845 recorded MOT tests, 16.4% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20232454.5%25,990 mi
20227,1075.9%24,604 mi
20215,3418.0%31,861 mi
20205,5748.9%37,162 mi
20199,98210.3%46,146 mi
20189,98412.6%55,918 mi
20177,21816.1%66,731 mi
20166,96622.3%76,454 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements25.7%
  2. A suspension pin, bush or joint excessively worn22.3%
  3. a brake lining or pad worn below 1.5mm21.1%
  4. A tyre seriously damaged18.0%
  5. Brake disc or drum excessively weakened, insecure or fractured12.8%

Figures cover every Mazda CX-5 tested in the DVSA dataset, not this specific car. Check a registration for the actual history of one vehicle.

Mazda CX-5 official figures

Median across 80 variants on sale, diesel electric, petrol, petrol electric.

Combined economy
43.5 mpg
WLTP median across variants
CO2 emissions
147 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 are the most common MOT failures for the Mazda CX-5?

Brakes, suspension, lighting, and emissions are the most common failure categories.

How does the age of the CX-5 affect its MOT failure rate?

Older models tend to have higher failure rates, particularly around 6-10 years old.

Are there quick fixes for common MOT failures?

Yes, issues like bulb replacements and minor brake adjustments are often quick and inexpensive.

What structural issues should I be aware of?

Rust and corrosion can be significant on older models, leading to higher repair costs.

What are the main problems of the Mazda CX-5?

Common problems include issues with the diesel particulate filter (DPF), fuel injectors, and occasional electrical faults.

Is a Mazda CX-5 a reliable car?

Overall, the Mazda CX-5 is considered a reliable vehicle, but some owners report specific issues with earlier models.

What years to avoid when buying a Mazda CX-5?

Buyers often advise caution with the 2012 and 2013 models due to reported mechanical issues.

Which is more reliable, RAV4 or CX-5?

While both vehicles are known for reliability, some owners suggest the RAV4 may have a slight edge based on long-term performance.

Sources