At a Glance
The Mg Gs has 5 identified common problems across 1 generation, with the MG GS (2016-2019) being the most affected generation and tyres & wheels the most common problem category. Based on 13K MOT tests from DVSA data.
Problems are patterns in the DVSA data that occur significantly more often on a specific model than the UK average — confirmed at 99% statistical confidence. Read our DVSA MOT data methodology →
Below: generation-by-generation comparison of Mg Gs common problems, MOT failure types, and pass-rate data drawn from DVSA records. Click any generation to see fuel- and engine-specific fault patterns, mileage-banded repair guidance, and the most common MOT failures testers record.
MOT Tests & Failures by Generation
Mg Gs generations by MOT tests, failures, and identified problems from DVSA data
Hover over each bar for a full breakdown. Tap any bar to view that generation's problems.
Showing total MOT tests, failures, and known problems per make. Hover over each bar for a full breakdown.
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Help other Mg Gs owners — report a problem and we'll add it to the database
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Browse Mg Gs Generations
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Most Common Mg Gs MOT Failures
Every reason Mg Gs vehicles fail their MOT, ranked by frequency. Select an individual year to see only that year’s failures, or stay on ‘All time’ for the combined picture across our 20 years of DVSA data. Scroll inside the table for the full list.
| # | Failure | % of failures |
|---|---|---|
| 1 | Tyre tread depth below limit | 13.93% |
| 2 | Brake pads or linings worn | 12.61% |
| 3 | Tyre condition | 12.00% |
| 4 | Wiper blades deteriorated | 7.75% |
| 5 | Brake disc or drum worn | 7.34% |
| 6 | Number plate lamp not working | 5.40% |
| 7 | Headlamp fault | 3.71% |
| 8 | Brake performance below minimum | 3.63% |
| 9 | Windscreen washer not working | 3.30% |
| 10 | Windscreen damage affecting view | 2.89% |
| 11 | Exhaust system fault | 2.80% |
| 12 | Indicator fault | 2.27% |
| 13 | Rear fog lamp not working | 2.10% |
| 14 | Spark ignition emissions above threshold | 1.85% |
| 15 | Headlamp washer not working | 1.73% |
| 16 | Position lamp not working | 1.61% |
| 17 | Headlamp levelling device fault | 1.53% |
| 18 | Stop lamp not working | 1.44% |
| 19 | Coil spring broken or corroded | 1.40% |
| 20 | Electronic stability control fault | 1.11% |
| 21 | Parking brake performance below minimum | 1.07% |
| 22 | Seat belt condition | 1.03% |
| 23 | Brake caliper fault | 0.74% |
| 24 | Wheel bearing worn | 0.58% |
| 25 | Suspension joint or bush worn | 0.54% |
| 26 | Daytime running lamp not working | 0.41% |
| 27 | Mirror damaged or missing | 0.33% |
| 28 | Compression ignition emissions above threshold | 0.29% |
| 29 | Driveshaft fault | 0.29% |
| 30 | Shock absorber worn or leaking | 0.29% |
| 31 | ABS fault | 0.25% |
| 32 | Battery loose or leaking | 0.25% |
| 33 | Electronic braking system fault | 0.25% |
| 34 | Reversing lamp not working | 0.25% |
| 35 | Brake cable, rod, lever or linkage fault | 0.21% |
| 36 | Engine oil leak | 0.21% |
| 37 | Airbag warning light on | 0.16% |
| 38 | Bumper damaged or insecure | 0.16% |
| 39 | Driver seat fault | 0.16% |
| 40 | Electronic parking brake fault | 0.16% |
| 41 | Flexible brake hose damaged | 0.16% |
| 42 | Rigid brake pipe corroded or damaged | 0.16% |
| 43 | Brake fluid level low or contaminated | 0.12% |
| 44 | Ball joint dust cover split | 0.12% |
| 45 | Brake servo fault | 0.08% |
| 46 | Driver airbag fault | 0.08% |
| 47 | Front passenger door fault | 0.08% |
| 48 | Fuel cap damaged or missing | 0.08% |
| 49 | Passenger seat fault | 0.08% |
| 50 | Rear reflector damaged or missing | 0.08% |
| 51 | Suspension linkage fault | 0.08% |
| 52 | Bonnet catch or hinge fault | 0.04% |
| 53 | Boot lid damaged or insecure | 0.04% |
| 54 | Brake fluid reservoir fault | 0.04% |
| 55 | Electric power steering fault | 0.04% |
| 56 | Electrical switch fault | 0.04% |
| 57 | Electrical wiring fault | 0.04% |
| 58 | Exhaust leak | 0.04% |
| 59 | Front fog lamp not working | 0.04% |
| 60 | Fuel tank corroded or leaking | 0.04% |
| 61 | Hydraulic brake cylinder fault | 0.04% |
| 62 | Mirror or camera fault | 0.04% |
| 63 | Steering rack fault | 0.04% |
| 64 | Suspension arm worn or corroded | 0.04% |
| 65 | Tyre pressure monitoring system fault | 0.04% |
| 66 | Tyre size or type not matched | 0.04% |
| 67 | Tyre valve stem damaged | 0.04% |
| 68 | Universal joint worn | 0.04% |
| 69 | Vehicle floor corroded | 0.04% |
| 70 | Suspension mounting corroded | 0.04% |
| 71 | Towbar fault | 0.04% |
Showing all 71 reasons — scroll inside the table for the full list.
Mg Gs MOT Failures by Category
Total MOT failure occurrences for the Mg Gs, grouped by category. Same data as the failures table above — just sliced by category instead of fault title. Hover a slice for the top failures in each category.
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Frequently Asked Questions
What are the most common Mg Gs problems?
Based on analysis of 13K Mg Gs MOT tests from DVSA data, we have 5 identified common problems across 1 generation. The most frequently flagged issue is "Tyre pressure monitoring system fault". Tyres & Wheels is the most common problem category.
Which Mg Gs generation has the most problems?
The Mg Gs MG GS (2016-2019) (2016–2019) has the highest number of identified common problems (5). Click the generation card above for the full breakdown.
How is this data calculated?
We analyse anonymised DVSA MOT test records under the Open Government Licence. An issue is classified as a "Common Problem" when it occurs significantly more often on a specific model than the UK average, confirmed at 99% statistical confidence. Read the full methodology page for details.
Can I report a problem with my Mg Gs?
Yes — use the "Tell Us About Your Problem" form on this page. Your report helps other Mg Gs owners spot problems early. All submissions are reviewed before being added to the public database.
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