Is the Dethleffs Unclassified reliable?

The Dethleffs Unclassified has an average MOT pass rate of 92% across 7 years, based on 351 tests in 2024. That's 10 points above the national average of 82%. The most reliable year is 2019 with a 99% pass rate.

Which year Dethleffs Unclassified is best?

The 2019 Dethleffs Unclassified has the highest MOT pass rate at 99%, while the 2015 model has the lowest at 70%. There's a 29 percentage point spread between the best and worst years.

Dethleffs Unclassified Running Costs, MOT Pass Rates & Reliability

Dethleffs Unclassified

Reliability, running costs, and MOT data across 7 years from 351 real MOT tests.

Avg Pass Rate

92%

Total Tests

351

Best Year

2019 (99%)

Years Covered

How reliable is the Dethleffs Unclassified?

vs national average+10% (82% avg)

vs Dethleffs brand average+2% (90% avg)

Best to worst year spread29 percentage points

Dethleffs Unclassified by Year

Year	Pass Rate	Tests	Avg Mileage
2021	94%	36	13,002 mi
2020	99%	83	12,355 mi
2019	99%	87	14,948 mi
2018	94%	36	16,665 mi
2017	88%	43	21,237 mi
2016	97%	36	23,817 mi
2015	70%	30	25,414 mi

Checking a specific Dethleffs Unclassified?

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About the Dethleffs Unclassified

The Dethleffs Unclassified has been tested 351 times in 2024 MOT data across 7 model years (2015 to 2021), with an average pass rate of 92%. That's comfortably above the national average of 82%, making it a reliable choice. Available as diesel.

Best and Worst Years

The 2019 model is the most reliable with a 99% pass rate from 87 tests. The 2015 model has the lowest at 70%. With a 29 point spread, choosing the right year makes a big difference to reliability.

Mileage Across Years

The oldest model in our data (2015) averages 25,414 miles, while the newest (2021) averages 13,002 miles.

Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.