MAZDA 6 (2020)
Running costs, common problems, and reliability data based on 1,786 real MOT tests in 2024.
MOT Pass Rate
94%
Total Tests (2024)
1,786
Avg Mileage
31,783 mi
Est. Annual Cost
£1,772
Is the 2020 MAZDA 6 reliable?
Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the MAZDA brand average of 81%.
At 4 years old, 94% of MAZDA 6s from 2020 passed their MOT first time in 2024. That's based on 1,786 tests across the UK. The average mileage at this age is 31,783 miles.
How does the 2020 MAZDA 6 compare?
Mileage Analysis
The average 2020 MAZDA 6 has 31,783 miles on the clock, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.
How much does a 2020 MAZDA 6 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MAZDA 6 by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 93% | 118 | 26,540 mi |
| 2020 | 94% | 1,786 | 31,783 mi |
| 2019 | 91% | 7,381 | 44,030 mi |
| 2018 | 89% | 5,151 | 55,840 mi |
| 2017 | 87% | 7,764 | 68,812 mi |
| 2016 | 84% | 11,771 | 78,854 mi |
| 2015 | 82% | 11,898 | 88,374 mi |
| 2014 | 80% | 11,144 | 97,838 mi |
| 2013 | 80% | 7,682 | 103,079 mi |
| 2012 | 75% | 5,149 | 103,925 mi |
| 2011 | 74% | 7,535 | 117,021 mi |
| 2010 | 73% | 9,673 | 121,783 mi |
| 2009 | 73% | 7,396 | 124,353 mi |
| 2008 | 71% | 6,498 | 124,138 mi |
| 2007 | 68% | 4,401 | 109,611 mi |
| 2006 | 69% | 2,430 | 105,119 mi |
| 2005 | 64% | 1,596 | 100,805 mi |
| 2004 | 62% | 763 | 99,968 mi |
| 2003 | 63% | 356 | 98,803 mi |
| 2002 | 54% | 140 | 98,087 mi |
Checking a specific MAZDA 6?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 MAZDA 6
The 2020 MAZDA 6 is a family car with a 1998cc petrol engine. 1,786 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 31,783 miles at 4 years old, MAZDA 6 owners drive about as much as the UK average.
2020 MAZDA 6 Fuel Costs
The 1998cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 MAZDA 6?
Total estimated annual running cost is £1,772 (£148/month), broken down as £1327 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
MAZDA 6 Reliability Trend
Newer MAZDA 6s show better MOT pass rates than older ones, with an average improvement of 18 percentage points.
Buying a Used 2020 MAZDA 6
At 4 years old, the MAZDA 6 offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Alternatives to the 2020 MAZDA 6
The MAZDA 6 is actually the most reliable option among similar petrol family cars from this era. Here are comparable petrol cars with similar engines:
- VOLKSWAGEN GOLF (2019) 92% pass rate (-2%) from 89,653 tests
- FORD KUGA (2018) 90% pass rate (-4%) from 67,605 tests
- MINI COOPER (2018) 92% pass rate (-2%) from 55,706 tests
- NISSAN QASHQAI (2020) 93% pass rate (-1%) from 52,321 tests