Fiat Dethleffs MOT Check

MOT pass rates, common failures, and reliability data for the Fiat Dethleffs. Check any Dethleffs by registration number below.

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93.7%

Avg Pass Rate

+8.7%

vs Fiat Avg

Year Ranges

Excellent

Reliability

Fiat Dethleffs — MOT Reliability Overview

The Fiat Dethleffs has an average MOT pass rate of 93.7%, which is 8.7 percentage points above the Fiat brand average of 85.0%. This is a strong result, indicating that the Dethleffs is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used Fiat Dethleffs, we recommend checking the full MOT history, write-off status, outstanding finance, and stolen vehicle status. These checks can be done for free using the registration number.

MOT Pass Rate by Year

How the Fiat Dethleffs performs at MOT across different model years.

2020

Based on 72 vehicles

90.3%Excellent

Fiat average: 85.0%

Dangerous Defects

0.0%

Retest Rate

11.4%

Mileage at 3yr

15k mi

2019

Based on 141 vehicles

91.5%Excellent

Fiat average: 85.0%

Dangerous Defects

0.0%

Retest Rate

9.6%

Mileage at 5yr

23k mi

2018

Based on 190 vehicles

95.3%Excellent

Fiat average: 85.0%

Dangerous Defects

0.9%

Retest Rate

6.3%

Mileage at 5yr

27k mi

2017

Based on 77 vehicles

89.6%Excellent

Fiat average: 85.0%

Dangerous Defects

0.0%

Retest Rate

21.3%

2009

Based on 56 vehicles

96.4%Excellent

Fiat average: 85.0%

2007

Based on 71 vehicles

94.4%Excellent

Fiat average: 85.0%

Mileage at 10yr

101k mi

2005

Based on 53 vehicles

96.2%Excellent

Fiat average: 85.0%

2003

Based on 123 vehicles

92.7%Excellent

Fiat average: 85.0%

Mileage at 10yr

113k mi

2002

Based on 73 vehicles

95.9%Excellent

Fiat average: 85.0%

0

Based on 251 vehicles

94.4%Excellent

Fiat average: 85.0%

Mileage at 5yr

19k mi

Where Failures Occur

The areas of the vehicle most commonly flagged during MOT inspections.

Rear Offside

2.8%

Rear Nearside

2.8%

Front

1.4%

Other Fiat Models

Compare MOT reliability across Fiat models.

Fiat Croma

87.5% pass rate

Fiat Barchetta

76.6% pass rate

Fiat Marea

81.2% pass rate

Fiat Hymer

92.8% pass rate

Fiat 500 Lounge Mhev

92.2% pass rate

Fiat Ducato 35 Shadow Ed M-jet Ii

90.6% pass rate

Useful MOT Guides

Common MOT Failures

The most common reasons UK vehicles fail their MOT — and how to prepare.

MOT Checklist

Pre-MOT checklist to improve your chances of passing first time.

Advisory vs Failure

Understanding the difference between MOT advisories and failures.

See detailed fault analysis for Fiat Dethleffs

Fiat Dethleffs — Frequently Asked Questions

Common questions about the Fiat Dethleffs MOT and reliability.

What is the MOT pass rate for the Fiat Dethleffs?

The average MOT pass rate for the Fiat Dethleffs is 93.7% compared to the Fiat average of 85.0%. Pass rates vary by year — check the year-by-year breakdown on this page for details.

What are the most common MOT failures on a Fiat Dethleffs?

Check the detailed breakdown on this page for specific failure data by year range.

Is the Fiat Dethleffs reliable?

With an average MOT pass rate of 93.7%, the Fiat Dethleffs is rated as "Excellent" for reliability. This is a strong result suggesting good build quality and fewer common defects.

How do I check the MOT history of a Fiat Dethleffs?

Enter the vehicle's registration number in the search box at the top of this page. You will instantly see the complete MOT history including every test result, mileage readings, advisories, and dangerous defects — completely free.

What mileage should I expect on a Fiat Dethleffs?

Typical mileage for the Fiat Dethleffs: 14,739 miles at 3 years. Use these benchmarks when evaluating a used Dethleffs to spot vehicles with unusually high or low mileage.

Check Your Fiat Dethleffs's MOT History

Enter the registration number for the full MOT history — free and instant.