AUTO-SLEEPERS UNCLASSIFIED (2021)
Running costs, reliability data, and common problems from 168 real MOT tests.
Annual Cost
£1,695
£141/month
MOT Pass Rate
93%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 25-38
2200cc Diesel
Great Choice
93% pass rate, £1695/year to run. 11 points above average.
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Annual Running Costs
~40 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%.
At 5 years old, 93% of AUTO-SLEEPERS UNCLASSIFIEDs from 2021 passed their MOT first time in 2026. That's based on 168 tests across the UK. The average mileage at this age is 8,501 miles.
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How Does It Compare?
Mileage Analysis
8,501
Average miles
37,000
Expected for age
The average 2021 AUTO-SLEEPERS UNCLASSIFIED has 8,501 miles on the clock, which is significantly below the expected 37,000 miles for a 5-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
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Best Year to Buy?
The most reliable year is the 2019 model with a 98% MOT pass rate, while the 2016 model has the lowest at 91%. The 2021 sits between the two at 93%.
AUTO-SLEEPERS UNCLASSIFIED by Year
Similar Cars to Consider
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About the 2021 AUTO-SLEEPERS UNCLASSIFIED
The 2021 AUTO-SLEEPERS UNCLASSIFIED is a family car with a 2200cc diesel engine. 168 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 1% of all 2021 cars for reliability.
With an average of 8,501 miles at 5 years old, AUTO-SLEEPERS UNCLASSIFIED owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
2021 AUTO-SLEEPERS UNCLASSIFIED Fuel Costs
The 2200cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 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 2021 AUTO-SLEEPERS UNCLASSIFIED?
Total estimated annual running cost is £1,695 (£141/month), broken down as £1245 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.
AUTO-SLEEPERS UNCLASSIFIED Reliability Trend
The AUTO-SLEEPERS UNCLASSIFIED has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Buying a Used 2021 AUTO-SLEEPERS UNCLASSIFIED
At 5 years old, the AUTO-SLEEPERS UNCLASSIFIED 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 2019 model has the highest pass rate at 98%.
Common Issues to Watch For
Based on the 2021 AUTO-SLEEPERS UNCLASSIFIED'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
Low riskExhaust 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 2021 AUTO-SLEEPERS UNCLASSIFIED stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| AUTO-SLEEPERS UNCLASSIFIED(2021) | 93% | £1245 | £195 | Grp 25-38 | £1695 |
| FORD KUGA(2019) | 91% | £1037 | £190 | Grp 18-32 | £1482-£213 |
| FORD TRANSIT CUSTOM(2019) | 87% | £1037 | £190 | Grp 18-32 | £1632-£63 |
| BMW 118(2020) | 93% | £1037 | £190 | Grp 18-32 | £1482-£213 |
| VOLKSWAGEN T-ROC(2019) | 94% | £1037 | £190 | Grp 18-32 | £1482-£213 |
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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