Mercedes Auto-sleepers
Reliability, running costs, and MOT data across 3 years from 186 real MOT tests.
Avg Pass Rate
96%
Total Tests
186
Best Year
2017 (100%)
Years Covered
3
About the Mercedes Auto-sleepers
The Mercedes Auto-sleepers has been tested 186 times in 2026 MOT data across 3 model years (2017 to 2021), with an average pass rate of 96%. That's comfortably above the national average of 82%, making it a reliable choice. Available as diesel.
Best and Worst Years
The 2017 model is the most reliable with a 100% pass rate from 40 tests. The 2021 model has the lowest at 89%. The 11 point spread between years means reliability varies somewhat, but no year is dramatically different.
Mileage Across Years
The oldest model in our data (2017) averages 14,245 miles, while the newest (2021) averages 8,241 miles.
Compared to the Mercedes brand average of 87%, the Auto-sleepers performs 9 points better, making it one of the more reliable options in the Mercedes range.
Estimated Running Costs
Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.
Full 2021 detailsHow reliable is the Mercedes Auto-sleepers?
Mercedes Auto-sleepers by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
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