Mazda CX-5 SE-L D (2020)
Estimated running costs and MOT pass rates from 32 MOT tests in 2024.
Annual Cost
£2,281
£190/month
MOT Pass Rate
88%
Good
Road Tax
£200
Standard rate/year
Est. Insurance
Grp 25-38
2191cc Diesel
Solid Option
88% pass rate, £2,281/year to run. 6 points above average.
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Annual Running Costs
~40 mpg
Standard rate (from April 2017)
Estimates based on 7,400 miles/year (UK average), diesel at 199.33p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).
Reliability Verdict
Good reliability. Occasional issues but generally solid. That's 6 points above the average of 82% across all models in our data. It also outperforms the Mazda brand average of 81%.
88% of MOT tests on Mazda CX-5 SE-L Ds from 2020 ended in a pass in 2024, when they were about 4 years old. That's based on 32 tests across the UK, retests included. The average mileage recorded at those tests was 35,767 miles.
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How Does It Compare?
Mileage Analysis
35,767
Average miles
29,600
Expected for age
The average 2020 Mazda CX-5 SE-L D had 35,767 miles on the clock at its 2024 MOT, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
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About the 2020 Mazda CX-5 SE-L D
The 2020 Mazda CX-5 SE-L D is a family car. Our records list a 2191cc diesel engine, though engines vary between versions. 32 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 15% of 2020 models for MOT pass rate.
With an average of 35,767 miles recorded at its 2024 MOT tests, Mazda CX-5 SE-L D owners cover more miles than the average driver.
2020 Mazda CX-5 SE-L D Fuel Costs
The 2191cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,676 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2020 Mazda CX-5 SE-L D?
Total estimated annual running cost is £2,281 (£190/month), broken down as £1,676 fuel, £200 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2020 Mazda CX-5 SE-L D
At 6 years old, the Mazda CX-5 SE-L D offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. Note: with only 32 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.
DPF (Diesel Particulate Filter)
Watch outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Medium riskDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
AdBlue System
Medium riskPost-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.
EGR Valve
Watch outExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Dual Mass Flywheel
Medium riskLarger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2020 Mazda CX-5 SE-L D stacks up against similar cars for estimated annual running costs, insurance group, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Est. Ins. Group | Total/yr |
|---|---|---|---|---|---|
| Mazda CX-5 SE-L D(2020) | 88% | £1,676 | £200 | Grp 25-38 | £2,281 |
| Volkswagen Golf(2018) | 92% | £1,397 | £200 | Grp 18-32 | £1,852-£429 |
| Ford Kuga(2019) | 91% | £1,397 | £200 | Grp 18-32 | £1,852-£429 |
| Volkswagen Tiguan(2018) | 91% | £1,397 | £200 | Grp 18-32 | £1,852-£429 |
| Mercedes E(2018) | 90% | £1,397 | £200 | Grp 18-32 | £1,852-£429 |
Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.
Questions about the 2020 Mazda CX-5 SE-L D
Is the 2020 Mazda CX-5 SE-L D reliable?
Good reliability. Occasional issues but generally solid. 88% of MOT tests on 2020 Mazda CX-5 SE-L Ds ended in a pass, from 32 tests (DVSA MOT data for tests in 2024, retests included). That's 6 points above the average of 82% across all models in the same data.
How much does a 2020 Mazda CX-5 SE-L D cost to run?
Our estimate is £2,281 a year (£190 a month): £1,676 fuel, £200 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.
What is the MOT pass rate for a 2020 Mazda CX-5 SE-L D?
88% of 32 MOT tests on the 2020 Mazda CX-5 SE-L D ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2172nd of 2,554 models first registered in 2020 (bottom 15%).
What is the average mileage for a 2020 Mazda CX-5 SE-L D?
The average mileage recorded at MOT tests on the 2020 Mazda CX-5 SE-L D is 35,767 miles, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
Related Mazda Models
Explore other Mazda cars or similar models in the same category.
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Volkswagen Golf
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