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Proton Jumbuck MOT Check

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

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65.3%

Avg Pass Rate

-4.5%

vs Proton Avg

5

Year Ranges

Average

Reliability

Proton Jumbuck — MOT Reliability Overview

The Proton Jumbuck has an average MOT pass rate of 65.3%, which is 4.5 percentage points below the Proton brand average of 69.8%. This is a reasonable result that reflects typical UK reliability standards. Regular servicing and addressing advisories promptly will help keep your Jumbuck on the road.

The most common reasons a Proton Jumbuck fails its MOT are the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired, brake pipe damaged or excessively corroded, the strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired. If you are preparing your Jumbuck for its MOT, checking these areas first could save you a retest fee. Our detailed fault analysis includes estimated repair costs for each failure type.

Before buying a used Proton Jumbuck, 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 Proton Jumbuck performs at MOT across different model years.

2006

Based on 449 vehicles

61.2%Below Average
Proton average: 69.8%
Dangerous Defects

7.1%

Retest Rate

33.5%

2005

Based on 252 vehicles

72.2%Average
Proton average: 69.8%
Dangerous Defects

4.3%

Retest Rate

15.9%

2004

Based on 376 vehicles

60.1%Below Average
Proton average: 69.8%
Dangerous Defects

5.9%

Retest Rate

31.7%

2003

Based on 167 vehicles

62.9%Below Average
Proton average: 69.8%
Dangerous Defects

5.6%

Retest Rate

21.3%

0

Based on 736 vehicles

70.2%Average
Proton average: 69.8%
Mileage at 5yr

72k mi

Top MOT Failures — Proton Jumbuck

The most common reasons a Proton Jumbuck fails its MOT, aggregated across all year ranges.

1

The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired

7.8%
2

Brake pipe damaged or excessively corroded

7.2%
3

The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired

5.5%
4

Engine MIL illuminated indicating a malfunction

4.7%
5

A suspension pin, bush or joint excessively worn

4.5%
Proton Jumbuck Common Faults & Repair Costs

Where Failures Occur

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

Front Offside

9.8%

Rear Offside

8.2%

Nearside

8.0%

Other Proton Models

Compare MOT reliability across Proton models.

Proton C9

91.4% pass rate

Proton Savvy

58.5% pass rate

Proton Gen-2

57.1% pass rate

Proton 415

91.4% pass rate

Proton Persona

80.0% pass rate

Proton Persona Compact

80.4% 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 Proton Jumbuck

Proton Jumbuck — Frequently Asked Questions

Common questions about the Proton Jumbuck MOT and reliability.

What is the MOT pass rate for the Proton Jumbuck?
The average MOT pass rate for the Proton Jumbuck is 65.3% compared to the Proton average of 69.8%. 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 Proton Jumbuck?
The most common MOT failures on the Proton Jumbuck are: The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired (7.8%), Brake pipe damaged or excessively corroded (7.2%), The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired (5.5%). These are the components most likely to cause an MOT failure.
Is the Proton Jumbuck reliable?
With an average MOT pass rate of 65.3%, the Proton Jumbuck is rated as "Average" for reliability. This is around average — regular maintenance is recommended to avoid common failure points.
How do I check the MOT history of a Proton Jumbuck?
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 Proton Jumbuck?
Typical mileage for the Proton Jumbuck: 71,932 miles at 5 years. Use these benchmarks when evaluating a used Jumbuck to spot vehicles with unusually high or low mileage.

Check Your Proton Jumbuck's MOT History

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

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