How reliable is the MG 3?
Owner-reported reliability data: inspection results, typical mileage, and the most common failures.
The MG 3 consistently passes first-time inspections at an above-average rate. The most commonly reported issues are the aim of a headlamp is not within limits laid down in the requirements, stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, a tyre cords visible or damaged. Typical mileage by age and a year-by-year breakdown of reliability are shown below. All figures are owner-reported real-world data, not a marketing rating.
Above average reliability
Based on 9,078 inspection tests. First-time pass rate: 87.7%.
MG 3 reliability by year
How the MG 3 performs at first-time inspection, broken down by the year cohort. Empty cells mean we don't have enough owner-reported data for that year yet.
| Year cohort | Pass rate | Typical mileage @ 5 yrs |
|---|---|---|
| 2013 | 77.1% | – |
| 2014 | 75.5% | – |
| 2015 | 76.5% | – |
| 2016 | 79.4% | – |
| 2017 | 78.8% | 52,907 km |
| 2018 | 82.6% | 48,501 km |
| 2019 | 87.7% | 45,441 km |
| 2020 | 89.6% | 41,737 km |
| 2021 | 91.1% | – |
| 2022 | 90.9% | – |
Model-level pattern, not per-car prediction
These figures describe the MG 3 as a model. The reliability of any individual MG 3 also depends on service history, accident history, and how it was driven. Run a free VIN check to see the records attached to a specific car you're considering.
Frequently asked questions
Is the MG 3 reliable?
Based on owner-reported inspection records, the MG 3 consistently passes first-time inspections at an above-average rate. Its first-time inspection pass rate sits around 88%. Reliability varies by year and engine: see the year-by-year breakdown on this page for the specific cohort you're considering.
What are the common problems on the MG 3?
The most common owner-reported issues are: The aim of a headlamp is not within limits laid down in the requirements (1.7% of inspections); Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning (1.3% of inspections); A tyre cords visible or damaged (1% of inspections); Tyre tread depth not in accordance with the requirements (1% of inspections); A tyre seriously damaged (0.9% of inspections).
What mileage is normal for a MG 3?
For a typical MG 3, owner-reported average mileage works out to about 29,945 km at 3 years, 45,441 km at 5 years, and – at 10 years. The mileage section on this page shows the full distribution, high-use vs low-use cars often differ by a factor of three.
How do I check a specific MG 3 before buying?
Enter the 17-character VIN on Carlytics. The free check shows decoded specs and open safety recalls. The full vehicle history report (from EUR 8.90) cross-references owner-reported issues, mileage records, and stolen-vehicle databases for the specific car, model-level reliability tells you the pattern, the VIN check tells you the car.