Running costs
Mazda CX-5 running costs: what UK ownership really costs
Mazda CX-5 UK running costs: fuel or electric, insurance group, road tax, servicing and depreciation.
Updated 26th September 2026 DVSA data: Across 71,845 recorded MOT tests, 16.4% failed.

More on the Mazda CX-5
The Mazda CX-5’s running costs are shaped by its tax band, insurance group, servicing needs and depreciation. Its tax liability depends on the engine and emissions, insurance is influenced by safety features and repair costs, servicing is generally straightforward but varies by engine type, and it tends to hold value reasonably well compared to rivals. Understanding these factors helps owners anticipate ongoing expenses.
Vehicle Tax and How It Affects Running Costs
The cost of vehicle tax for the Mazda CX-5 depends largely on the engine type and the emissions it produces. Petrol and diesel variants are taxed differently, with emissions-based bands determining the annual charge. Lower-emission models attract lower tax, while higher-emission engines fall into more expensive bands.
The UK government’s vehicle tax system bases charges on carbon dioxide emissions for cars registered after a certain date, so the exact tax band can vary between CX-5 trims. Diesel versions may face additional surcharges if they do not meet specific emissions standards. Checking the official government website for the exact tax band of the chosen CX-5 model is essential, as this directly impacts the annual running cost.
Tax changes over time can also influence costs. For example, older models may have a fixed rate, while newer ones are subject to graduated charges. This means that when considering a CX-5, the registration year and engine variant are key to understanding tax liabilities.
Insurance Group and Its Influence on Premiums
Insurance costs for the Mazda CX-5 are affected by the insurance group it falls into, which is determined by factors such as engine size, repair costs, safety features, and performance. Models with more powerful engines or expensive parts typically attract higher insurance groups, pushing premiums up.
Safety equipment fitted as standard, such as advanced driver assistance systems, can help reduce insurance costs by lowering the risk of accidents or injury claims. The CX-5 is generally well-equipped with safety features, which can be beneficial when obtaining insurance quotes.
Driver profile and location also impact insurance premiums, but from the vehicle’s perspective, the repair cost and likelihood of theft are major factors. The CX-5’s popularity and availability of parts can keep repair costs moderate, helping to keep insurance groups reasonable. Prospective buyers should obtain personalised insurance quotes to understand how their specific circumstances and chosen trim affect premiums.
Servicing Requirements and Maintenance Demands
Servicing the Mazda CX-5 is generally straightforward, though the frequency and complexity depend on the engine type and trim level. Petrol engines typically require less frequent servicing than diesels, which may need additional checks such as diesel particulate filter maintenance.
Routine maintenance includes oil changes, brake inspections, and fluid top-ups, which are standard across most vehicles. The CX-5’s design aims for reliability and ease of servicing, with widely available parts and service centres across the UK.
Some trims may feature advanced technologies that require specialised attention, potentially increasing servicing costs. It is advisable to follow the manufacturer’s recommended service schedule to maintain warranty coverage and ensure long-term reliability. Checking the service history when buying used can also reveal how well the car has been maintained, which affects future running costs.
Fuel Economy and Its Impact on Running Costs
Fuel consumption is a significant factor in the Mazda CX-5’s running costs. Different engines and transmissions offer varying levels of efficiency, so the actual fuel cost depends on the specific model and driving habits.
Petrol variants generally have lower fuel economy than diesel models but may be more suitable for shorter journeys or urban driving where diesel engines can be less efficient. The CX-5’s engine technology aims to balance performance with economy, but real-world consumption will vary.
Choosing the right engine and trim for your typical driving conditions can help manage fuel expenses. Regular maintenance, such as keeping tyres properly inflated and ensuring the engine is well-tuned, also contributes to better fuel economy and lower running costs.
Depreciation and Resale Value
The Mazda CX-5 tends to hold its value reasonably well compared to many other SUVs in its class. Depreciation is influenced by factors such as brand reputation, reliability, demand in the used car market, and the availability of newer models.
Mazda’s reputation for building durable and well-engineered vehicles supports stronger resale values. Additionally, the CX-5’s styling and features help maintain appeal over time, which can reduce the rate at which its value declines.
Trim level, mileage, and condition also play a significant role in resale value. Higher-spec models with desirable options often retain value better, but they may also have higher initial purchase prices and running costs. Buyers should consider how long they intend to keep the car and how depreciation fits into their overall cost of ownership.
Tyres, Repairs and Other Running Costs
Tyre wear and replacement is another ongoing cost for the Mazda CX-5. The size and type of tyres fitted vary by trim and affect both cost and performance. Larger or performance-oriented tyres typically cost more to replace and may wear faster.
Repairs beyond routine servicing depend on the car’s usage, age and how well it has been maintained. The CX-5’s build quality and availability of parts generally keep repair costs manageable. However, advanced technology or rare parts on higher trims can increase repair bills.
Other running costs include MOT tests, which are mandatory in the UK after the car reaches a certain age, and general upkeep such as cleaning and minor fixes. Budgeting for these expenses ensures the CX-5 remains reliable and safe to drive over time.
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
How often does the Mazda CX-5 need an oil change?
Mazda recommends changing the engine oil and oil filter regularly to keep the Skyactiv engine running smoothly. You can check the oil level using the dipstick and look out for the oil warning light on the dashboard, which signals when an oil change is overdue.
What should I expect in terms of tyre wear on a Mazda CX-5?
Tyre wear on the CX-5 depends on driving style and road conditions, but the front tyres often wear faster due to the front-wheel-drive setup on some models. Regularly check the tread depth and look for uneven wear patterns, which might indicate a need for wheel alignment.
Are there any specific maintenance tasks unique to the Mazda CX-5?
The Mazda CX-5 features a Skyactiv engine that benefits from using Mazda-approved synthetic oil during servicing. Additionally, the i-Stop system requires periodic checks to ensure the starter motor and battery are in good condition, as these components support the stop-start function.
What are the typical signs of brake wear on a Mazda CX-5?
Listen for a high-pitched squealing noise when braking, which usually indicates the brake pads need replacing. The CX-5’s brake pad wear sensor will also trigger a warning light on the dashboard if the pads are too thin, signalling it’s time for a garage inspection.
How reliable is the Mazda CX-5’s diesel particulate filter (DPF)?
The DPF in diesel CX-5 models requires regular motorway driving to regenerate properly and avoid clogging. If you notice a loss of power or the DPF warning light comes on, it’s important to have the system checked to prevent costly repairs.
Does the Mazda CX-5 require special attention to its transmission?
For models with the automatic transmission, regular fluid changes are essential to maintain smooth gear shifts. You might notice rough or delayed gear changes if the transmission fluid is degraded, so following Mazda’s service schedule helps avoid these issues.
What should I check before buying a used Mazda CX-5 to avoid unexpected running costs?
Inspect the service history for regular oil and filter changes, and check that the timing chain has been maintained as per Mazda’s guidelines. Also, test the i-Stop system and ensure no warning lights are present on the dashboard during a test drive.
How does the Mazda CX-5’s battery affect running costs?
The CX-5 uses a conventional 12-volt battery that powers electrical systems including the i-Stop start-stop feature. Battery health can be checked at a garage, and a weak battery may cause the stop-start system to malfunction, increasing fuel consumption and wear on the starter motor.
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)