HONDA CIVIC S I-DTEC (2020)
Running costs, reliability data, and common problems from 153 real MOT tests.
Annual Cost
£1,355
£113/month
MOT Pass Rate
93%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 12-25
1597cc Diesel
Great Choice
93% pass rate, £1355/year to run. 11 points above average.
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Annual Running Costs
~55 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the HONDA brand average of 84%.
At 6 years old, 93% of HONDA CIVIC S I-DTECs from 2020 passed their MOT first time in 2026. That's based on 153 tests across the UK. The average mileage at this age is 36,368 miles.
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How Does It Compare?
Mileage Analysis
36,368
Average miles
44,400
Expected for age
The average 2020 HONDA CIVIC S I-DTEC has 36,368 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.
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About the 2020 HONDA CIVIC S I-DTEC
The 2020 HONDA CIVIC S I-DTEC is a small family car with a 1597cc diesel engine. 153 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 36,368 miles at 6 years old, HONDA CIVIC S I-DTEC owners drive about as much as the UK average.
2020 HONDA CIVIC S I-DTEC Fuel Costs
The 1597cc diesel engine offers a reasonable balance between performance and economy. Expect around 55 mpg in mixed driving, which works out to roughly £905 per year at current diesel prices of 148p per litre (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 HONDA CIVIC S I-DTEC?
Total estimated annual running cost is £1,355 (£113/month), broken down as £905 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2020 HONDA CIVIC S I-DTEC
At 6 years old, the HONDA CIVIC S I-DTEC offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Common Issues to Watch For
Based on the 2020 HONDA CIVIC S I-DTEC's fuel type, age, and engine size, these are the most likely problem areas to check.
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.
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 HONDA CIVIC S I-DTEC stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| HONDA CIVIC S I-DTEC(2020) | 93% | £905 | £195 | Grp 12-25 | £1355 |
| VOLKSWAGEN GOLF(2018) | 92% | £1037 | £190 | Grp 18-32 | £1482+£127 |
| FORD FOCUS(2019) | 89% | £905 | £190 | Grp 12-25 | £1500+£145 |
| MERCEDES A(2019) | 91% | £905 | £190 | Grp 12-25 | £1350-£5 |
| MERCEDES A-CLASS(2018) | 89% | £905 | £190 | Grp 12-25 | £1500+£145 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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MERCEDES A
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