CITROEN UNKNOWN (2021)
Running costs, common problems, and reliability data based on 324 real MOT tests in 2024.
MOT Pass Rate
86%
Total Tests (2024)
324
Avg Mileage
20,467 mi
Est. Annual Cost
£1,500
Is the 2021 CITROEN UNKNOWN reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It also outperforms the CITROEN brand average of 79%.
At 3 years old, 86% of CITROEN UNKNOWNs from 2021 passed their MOT first time in 2024. That's based on 324 tests across the UK. The average mileage at this age is 20,467 miles.
How does the 2021 CITROEN UNKNOWN compare?
Mileage Analysis
The average 2021 CITROEN UNKNOWN has 20,467 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.
Best year to buy a CITROEN UNKNOWN?
The most reliable year is the 2016 model with a 90% MOT pass rate, while the 2014 model has the lowest at 80%. The 2021 sits between the two at 86%.
How much does a 2021 CITROEN UNKNOWN cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
CITROEN UNKNOWN by Year
Checking a specific CITROEN UNKNOWN?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 CITROEN UNKNOWN
The 2021 CITROEN UNKNOWN is a small family car with a 1499cc diesel engine. 324 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It sits in the bottom 90% of 2021 cars for MOT pass rates.
With an average of 20,467 miles at 3 years old, CITROEN UNKNOWN owners drive about as much as the UK average.
2021 CITROEN UNKNOWN Fuel Costs
The 1499cc 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).
What does it cost to own a 2021 CITROEN UNKNOWN?
Total estimated annual running cost is £1,500 (£125/month), broken down as £905 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 86% pass rate. Keeping on top of servicing will help avoid surprises.
CITROEN UNKNOWN Reliability Trend
The CITROEN UNKNOWN has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2021 CITROEN UNKNOWN
At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet. If you're flexible on year, the 2016 model has the highest pass rate at 90%.
Alternatives to the 2021 CITROEN UNKNOWN
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- FORD FOCUS (2019) 89% pass rate (+3%) from 93,803 tests
- MERCEDES A (2019) 91% pass rate (+5%) from 89,588 tests
- FORD KUGA (2019) 91% pass rate (+5%) from 72,831 tests
- VOLKSWAGEN POLO (2019) 89% pass rate (+3%) from 65,751 tests