MERCEDES AUTO-SLEEPERS (2021)
Running costs, common problems, and reliability data based on 36 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
36
Avg Mileage
8,241 mi
Est. Annual Cost
£1,840
Is the 2021 MERCEDES AUTO-SLEEPERS reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 3 years old, 89% of MERCEDES AUTO-SLEEPERSs from 2021 passed their MOT first time in 2024. That's based on 36 tests across the UK. The average mileage at this age is 8,241 miles.
How does the 2021 MERCEDES AUTO-SLEEPERS compare?
Mileage Analysis
The average 2021 MERCEDES AUTO-SLEEPERS has 8,241 miles on the clock, which is significantly below the expected 22,200 miles for a 3-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
How much does a 2021 MERCEDES AUTO-SLEEPERS 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.
MERCEDES AUTO-SLEEPERS by Year
Checking a specific MERCEDES AUTO-SLEEPERS?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MERCEDES AUTO-SLEEPERS
The 2021 MERCEDES AUTO-SLEEPERS is a family car with a 2143cc diesel engine. 36 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 83% of 2021 cars for MOT pass rates.
With an average of 8,241 miles at 3 years old, MERCEDES AUTO-SLEEPERS 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 MERCEDES AUTO-SLEEPERS Fuel Costs
The 2143cc 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).
What does it cost to own a 2021 MERCEDES AUTO-SLEEPERS?
Total estimated annual running cost is £1,840 (£153/month), broken down as £1245 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.
Buying a Used 2021 MERCEDES AUTO-SLEEPERS
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. Note: with only 36 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 MERCEDES AUTO-SLEEPERS
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- FORD KUGA (2019) 91% pass rate (+2%) from 72,831 tests
- FORD TRANSIT CUSTOM (2019) 87% pass rate (-2%) from 59,814 tests
- BMW 118 (2020) 93% pass rate (+4%) from 38,549 tests
- VOLKSWAGEN T-ROC (2019) 94% pass rate (+5%) from 36,096 tests