CITROEN UNKNOWN (2018)
Running costs, common problems, and reliability data based on 84 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
84
Avg Mileage
34,052 mi
Est. Annual Cost
£1,632
Is the 2018 CITROEN UNKNOWN reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%. It also outperforms the CITROEN brand average of 79%.
At 6 years old, 89% of CITROEN UNKNOWNs from 2018 passed their MOT first time in 2024. That's based on 84 tests across the UK. The average mileage at this age is 34,052 miles.
How does the 2018 CITROEN UNKNOWN compare?
Mileage Analysis
The average 2018 CITROEN UNKNOWN has 34,052 miles on the clock, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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 2018 sits between the two at 89%.
How much does a 2018 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 2018 CITROEN UNKNOWN
The 2018 CITROEN UNKNOWN is a family car with a 1997cc diesel engine. 84 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. Among all cars from 2018, the average MOT pass rate is 89%, and this model falls short of that benchmark.
With an average of 34,052 miles at 6 years old, CITROEN UNKNOWN owners tend to use this car less than the typical driver.
2018 CITROEN UNKNOWN Fuel Costs
The 1997cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 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 2018 CITROEN UNKNOWN?
Total estimated annual running cost is £1,632 (£136/month), broken down as £1037 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% 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 2018 CITROEN UNKNOWN
At 6 years old, the CITROEN UNKNOWN offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2016 model has the highest pass rate at 90%. Note: with only 84 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2018 CITROEN UNKNOWN
If reliability is your priority, there's one similar car with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- VOLKSWAGEN GOLF (2017) 91% pass rate (+2%) from 127,682 tests
- FORD FOCUS (2019) 89% pass rate (same) from 93,803 tests
- FORD TRANSIT (2017) 81% pass rate (-8%) from 80,031 tests
- VOLKSWAGEN POLO (2018) 84% pass rate (-5%) from 79,867 tests