SEAT LEON (2020)
Running costs, common problems, and reliability data based on 13,840 real MOT tests in 2024.
MOT Pass Rate
90%
Total Tests (2024)
13,840
Avg Mileage
38,299 mi
Est. Annual Cost
£1,350
Is the 2020 SEAT LEON reliable?
Excellent reliability. Very few MOT failures. That's 8 points above the national average of 82%. It also outperforms the SEAT brand average of 85%.
At 4 years old, 90% of SEAT LEONs from 2020 passed their MOT first time in 2024. That's based on 13,840 tests across the UK. The average mileage at this age is 38,299 miles.
How does the 2020 SEAT LEON compare?
Mileage Analysis
The average 2020 SEAT LEON has 38,299 miles on the clock, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
How much does a 2020 SEAT LEON 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.
SEAT LEON by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 85% | 184 | 29,531 mi |
| 2020 | 90% | 13,840 | 38,299 mi |
| 2019 | 88% | 33,662 | 45,808 mi |
| 2018 | 88% | 37,787 | 53,378 mi |
| 2017 | 88% | 32,092 | 63,602 mi |
| 2016 | 87% | 28,078 | 72,877 mi |
| 2015 | 86% | 30,311 | 83,849 mi |
| 2014 | 85% | 33,359 | 93,735 mi |
| 2013 | 83% | 21,374 | 100,080 mi |
| 2012 | 79% | 16,909 | 108,558 mi |
| 2011 | 78% | 12,613 | 114,006 mi |
| 2010 | 77% | 11,322 | 120,467 mi |
| 2009 | 77% | 9,868 | 119,895 mi |
| 2008 | 76% | 9,717 | 124,433 mi |
| 2007 | 75% | 8,629 | 129,414 mi |
| 2006 | 74% | 5,613 | 129,640 mi |
| 2005 | 76% | 3,477 | 130,247 mi |
| 2004 | 77% | 2,724 | 136,378 mi |
| 2003 | 76% | 2,090 | 129,241 mi |
| 2002 | 76% | 1,025 | 126,696 mi |
| 2001 | 75% | 431 | 128,387 mi |
| 2000 | 76% | 92 | 108,063 mi |
Checking a specific SEAT LEON?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 SEAT LEON
The 2020 SEAT LEON is a small family car with a 1598cc diesel engine. 13,840 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model falls short of that benchmark.
With an average of 38,299 miles at 4 years old, SEAT LEON owners cover more miles than the average driver.
2020 SEAT LEON Fuel Costs
The 1598cc diesel engine offers a reasonable balance between performance and economy. Expect around 55 mpg in mixed driving, which works out to roughly £905 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 SEAT LEON?
Total estimated annual running cost is £1,350 (£113/month), broken down as £905 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
SEAT LEON Reliability Trend
Newer SEAT LEONs show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Buying a Used 2020 SEAT LEON
At 4 years old, the SEAT LEON offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. With 13,840 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2020 SEAT LEON
If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- VOLKSWAGEN GOLF (2018) 92% pass rate (+2%) from 111,972 tests
- FORD FOCUS (2019) 89% pass rate (-1%) from 93,803 tests
- MERCEDES A (2019) 91% pass rate (+1%) from 89,588 tests
- MERCEDES A-CLASS (2018) 89% pass rate (-1%) from 81,134 tests