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.

More on the Mazda CX-5
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.
Age-Related Failure Rates
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.
CATALYTIC REDUCTION (SCR) SYSTEM WIRING MAY BECOME DAMAGED BY CONTAMINATION
R/2021/439Issued 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
LOW PRESSURE FUEL PUMP IMPELLER MIGHT BECOME DEFORMED
R/2021/435Issued 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
ONE OR BOTH LED DAYTIME RUNNING LAMPS MAY FLICKER FLASH OR FAIL COMPLETELY
R/2020/058Issued 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
SOOT MAY ACCUMULATE AROUND THE INTAKE SHUTTER VALVE ON THE INLET SIDE OF THE ENGINE
R/2019/187Issued 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.
| Registered | Tests | Failed | Median mileage |
|---|---|---|---|
| 2023 | 245 | 4.5% | 25,990 mi |
| 2022 | 7,107 | 5.9% | 24,604 mi |
| 2021 | 5,341 | 8.0% | 31,861 mi |
| 2020 | 5,574 | 8.9% | 37,162 mi |
| 2019 | 9,982 | 10.3% | 46,146 mi |
| 2018 | 9,984 | 12.6% | 55,918 mi |
| 2017 | 7,218 | 16.1% | 66,731 mi |
| 2016 | 6,966 | 22.3% | 76,454 mi |
Most common reasons for failure
- Tyre tread depth not in accordance with the requirements25.7%
- A suspension pin, bush or joint excessively worn22.3%
- a brake lining or pad worn below 1.5mm21.1%
- A tyre seriously damaged18.0%
- 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
- DVSA anonymised MOT tests and results (Open Government Licence v3.0)
- VCA new car fuel consumption and emissions data (Open Government Licence v3.0)
- DVSA vehicle safety recalls (Open Government Licence v3.0)