MG 3 (2019)
Running costs, common problems, and reliability data based on 6,117 real MOT tests in 2024.
MOT Pass Rate
88%
Total Tests (2024)
6,117
Avg Mileage
29,253 mi
Est. Annual Cost
£1,732
Is the 2019 MG 3 reliable?
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.
At 5 years old, 88% of MG 3s from 2019 passed their MOT first time in 2024. That's based on 6,117 tests across the UK. The average mileage at this age is 29,253 miles.
How does the 2019 MG 3 compare?
Mileage Analysis
The average 2019 MG 3 has 29,253 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a MG 3?
The most reliable year is the 2021 model with a 92% MOT pass rate, while the 2014 model has the lowest at 79%. The 2019 sits between the two at 88%.
How much does a 2019 MG 3 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.
MG 3 by Year
Checking a specific MG 3?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2019 MG 3
The 2019 MG 3 is a small family car with a 1498cc petrol engine. 6,117 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2019, the average MOT pass rate is 90%, and this model falls short of that benchmark.
With an average of 29,253 miles at 5 years old, MG 3 owners tend to use this car less than the typical driver.
2019 MG 3 Fuel Costs
The 1498cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2019 MG 3?
Total estimated annual running cost is £1,732 (£144/month), broken down as £1137 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
MG 3 Reliability Trend
Newer MG 3s show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Buying a Used 2019 MG 3
At 5 years old, the MG 3 offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2021 model has the highest pass rate at 92%. With 6,117 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2019 MG 3
If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- FORD FIESTA (2018) 90% pass rate (+2%) from 157,746 tests
- FORD FOCUS (2017) 89% pass rate (+1%) from 109,241 tests
- NISSAN QASHQAI (2017) 86% pass rate (-2%) from 100,176 tests
- VAUXHALL CORSA (2017) 82% pass rate (-6%) from 90,285 tests