At a Glance
The Mazda Mazda6 Mk3 GJ has 1 identified problem that occur more often than the UK average, with Compression ignition emissions above threshold being the most reported. Brakes is the most common MOT failure category. The most serious issue flagged is Compression ignition emissions above threshold, rated as dangerous. Based on 250K MOT tests from DVSA data.
Problems are patterns in the DVSA data that occur significantly more often on this model than the UK average — confirmed at 99% statistical confidence. Read how we calculate MOT pass rates and problems →
Below: the full MOT-data picture for the Mazda Mazda6 Mk3 GJ — MOT pass rate vs the UK average, common problems vs UK fleet patterns, the most likely MOT failures by frequency, fault occurrence by mileage band, and pass/fail trends. All numbers drawn from DVSA records.
Mazda Mazda6 Mk3 GJ MOT Pass Rate
Across 250K MOT tests from DVSA data, the Mazda Mazda6 Mk3 GJ (2013–2023) has a fail rate of 18.0%.
UK average fail rate (2013–2023): 33.3%
Common Mazda Mazda6 Mk3 GJ Problems
Owner-submitted reports plus patterns we've identified across 559 million UK MOT tests. Each MOT-derived item below — whether tagged as a Problem, Wear & Tear or Consumable — shows up noticeably more often on this generation than across the UK fleet, which is why it's here. Owner reports are pinned to the top by default; use the sort and filter pills below to view a specific tier or change the order.
Compression ignition emissions above threshold
1,065
occurrences
Tell Us About Your Problem
Help other Mazda Mazda6 Mk3 GJ owners — report a problem and we'll add it to the database
Tell Us About Your Problem
Help other Mazda Mazda6 Mk3 GJ owners — report a problem and we'll add it to the database
Looking for a garage to repair your Mazda Mazda6?
Our directory covers 12,000+ UK garages — every garage has verified Google reviews.
Problems by mileage
Common problems, MOT failures and advisories on the Mazda Mazda6 Mk3 GJ, grouped by the mileage they typically appear at.
479 distinct problems · 239,382 total occurrences in current filter
Filter by fuel and engine size to narrow down to your car.
Toggle problem types on or off to focus on what matters to you.
Advisory items are MOT tester observations. Frequency can be influenced by driving style and usage patterns.
Join as a car owner — free
Get MOT reminders, a pre-MOT checklist, and tools to compare garages near you.
MOT Reminders
Free email alerts 28 and 7 days before your MOT expires.
44-Point MOT Checklist
Printable checklist to inspect your car before the test.
Save Favourite Garages
Save garages you trust and compare their ratings side by side.
Already a member? Sign in
Other Mazda Mazda6 Generations
Frequently Asked Questions
What are the most common Mazda Mazda6 Mk3 GJ problems?
Based on DVSA MOT data for the Mazda Mazda6 Mk3 GJ (2013–2023), we have identified 1 common problem. The most frequently reported is "Compression ignition emissions above threshold". Brakes is the most common MOT failure category.
How reliable is the Mazda Mazda6 Mk3 GJ?
This generation has 250K MOT tests on record with a 18.0% fail rate. A fault is flagged as a "Common Problem" only when it occurs significantly more often on this model than the UK average, confirmed at 99% statistical confidence.
What commonly fails the MOT on a Mazda Mazda6 Mk3 GJ?
There are 130 distinct MOT failure types recorded for the Mk3 GJ (2013–2023), grouped by the mileage these failures typically occur. See the Common MOT Failures section on this page.
Can I report a problem with my Mazda Mazda6 Mk3 GJ?
Yes — use the "Tell Us About Your Problem" form on this page. Your report helps other Mazda Mazda6 owners spot problems early. All submissions are reviewed before being added to the public database.
Search Vehicles With Common Problems
Find common car problems, MOT failures, and advisories for any make and model
Popular makes with common problems
Popular models with common problems
Auto Intelligence
Your hub for tips and tricks to make motoring in the UK easier
Car Mechanic Labour Rates UK 2026: Ultimate Regional Price Guide
Wondering how much garages charge per hour for repairs in 2026? The car mechanic labour rate UK varies dramatically depending on where you live and which type of garage you choose. With labour costs often representing 50-70% of your total repair bill, understanding these rates is essential for budge
Read Article
Can I Service My Car at an Independent Garage and Keep My Main Dealer Warranty? The Essential UK Guide
One of the most persistent myths in UK motoring is that servicing your new car anywhere other than the main dealer will automatically invalidate your manufacturer's warranty. This dealer warranty servicing myth has cost UK drivers thousands in unnecessary servicing costs over the years. In 2026, ...
Read Article
New MOT Rules 2026 UK: Essential Changes Every Driver Must Know
The new MOT rules 2026 UK have officially come into force, bringing significant changes that affect every motorist across Britain. Whether you're a seasoned driver or recently passed your test, understanding these updated regulations is crucial to avoid fines, ensure your vehicle remains roadworthy,
Read Article