Budget SUV with a price to match the risk
The MG GS was SAIC's first attempt at cracking the UK mid-size SUV market under the revived MG badge, sold from 2016 to 2019 before being replaced by the more successful MG HS. It undercut the Nissan Qashqai by over three thousand pounds on list price but suffered from poor residual values and limited brand trust. Now discontinued, used examples are among the cheapest mid-size SUVs available, but buyer caution is warranted.
We track 5 known issues across the MG GS range, with 3 classified as significant. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a MG GS? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
MK1 (2016–2019) — Engine options included the 1.5 Turbo, 1.5 Naturally Aspirated. We track 5 known issues on this generation, with 3 classified as significant. The most significant concern is Electronic Stability Control system malfunction (£200–£400 to address).
The Electronic Stability Control (ESC) system frequently develops software or sensor faults that trigger the malfunction indicator light. This affects the vehicle's stability assistance during emergency manoeuvres and is an MOT failure item. The fault pattern suggests either inadequate software calibration or premature sensor degradation in the early production years of this model.
The ESC system will not function correctly during emergency situations, reducing the vehicle's ability to maintain stability. This is an automatic MOT failure and the car should not be driven in adverse weather conditions. Repair typically involves sensor replacement or ECU reprogramming.
Check all electrical functions systematically: windows, mirrors, lights, infotainment, heated seats, air conditioning. Look for any warning lights on the dashboard. A diagnostic scan before purchase can reveal stored fault codes.
Brake discs develop excessive wear, cracking, or fractures at unusually low mileages, even on nearly new vehicles. This suggests either inadequate disc specifications for the vehicle's weight or poor quality metallurgy in the original equipment discs. The issue affects safety-critical braking performance.
Cracked or excessively worn discs can fail completely under heavy braking, causing total loss of braking on that axle. This represents a serious safety hazard and will result in immediate MOT failure. Complete disc replacement is required.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
Coil springs fracture or seriously weaken at very low mileages, including on nearly new vehicles. This indicates either design issues with spring specifications or manufacturing defects in the spring steel. A fractured spring affects vehicle handling and ride height.
A fractured spring can cause sudden loss of vehicle control, particularly during cornering or emergency manoeuvres. The sharp end of a broken spring can also damage the tyre. This is an immediate MOT failure and the vehicle should not be driven until repaired.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
Multiple warning systems experience malfunctions that cause warning lights or audible alerts to activate incorrectly. This covers various dashboard warning indicators beyond the ESC system and suggests broader electrical integration issues in the early production vehicles.
False warnings can mask genuine safety issues and create driver distraction. While not immediately dangerous, these faults will cause MOT failure and may indicate underlying electrical problems that could develop further.
Check all electrical functions systematically: windows, mirrors, lights, infotainment, heated seats, air conditioning. Look for any warning lights on the dashboard. A diagnostic scan before purchase can reveal stored fault codes.
Lambda sensors (oxygen sensors) fail prematurely causing the engine management system to run outside acceptable emission limits. This results in MOT emission test failure and can affect fuel economy and engine performance. The failure rate suggests either sensor quality issues or contamination from fuel additives.
The vehicle will fail the MOT emissions test until the sensor is replaced. Fuel economy will be reduced and the catalytic converter may be damaged by incorrect fuelling. The engine may experience poor performance and irregular idling.
Check all electrical functions systematically: windows, mirrors, lights, infotainment, heated seats, air conditioning. Look for any warning lights on the dashboard. A diagnostic scan before purchase can reveal stored fault codes.
For the full breakdown of all 5 tracked issues with repair costs, see the MG GS common problems page.
Based on 14k real DVSA MOT tests, the MG GS fails more often than average on several items. The biggest outlier is abs fault at 26x the fleet average, followed by headlight fault (20x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full MG GS MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 10k miles) typically costs £80–£120 at an independent garage.
See the full MG GS service schedule for every interval and cost breakdown.
The MG GS is a solid choice on the used market, though not without its quirks. The issues we track are well-understood and largely avoidable if you know what to look for. A thorough inspection and complete service history go a long way. Later 2018-2019 models benefited from running production improvements and are less likely to suffer the early dual-clutch gearbox issues. Stick to manual transmission examples where possible. Avoid early 2016 cars which had the most teething problems. Always check for remaining MG warranty.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific MG GS, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known MG GS issues. We are not affiliated with any source listed.