2016 MG GS: common problems and MOT failures
What MOT testers find on the MG GS first registered in 2016: we looked at the 1,695 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
What goes wrong more than usual on a 2016 MG GS?
Parts flagged at MOT more often on the 2016 MG GS than on all cars registered in 2016.
- Headlight aim4.3× usualMG GS9.1% All 2016 cars2.1%
Failed outright at MOT: 9.1%, against 2.1% of all 2016 cars. The rest were advisories or minor defects.
Rough price £20–£60 our estimateAt the viewing: Park facing a wall at night or in a garage and check both headlight beams sit level. Aim is a cheap adjustment.
- Number plate lights2.2× usualMG GS5.9% All 2016 cars2.7%
Failed outright at MOT: 1.2%, against 0.8% of all 2016 cars. The rest were advisories or minor defects.
Rough price £5–£40 our estimateAt the viewing: Check the number plate lights work and the plates are clean and legal.
- Anti-lock braking system12.5× usualMG GS2.5% All 2016 cars0.2%
Failed outright at MOT: 2.5%, against 0.2% of all 2016 cars. The rest were advisories or minor defects.
Rough price £100–£350 our estimateAt the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.
- Exhaust system2.2× usualMG GS3.8% All 2016 cars1.7%
Failed outright at MOT: 1.2%, against 0.4% of all 2016 cars. The rest were advisories or minor defects.
Rough price £100–£500 (pipe or section) ClickMechanicAt the viewing: Listen for blowing or rattling from underneath at idle, and look for black soot around joints.
- Sub-frame4.6× usualMG GS2.3% All 2016 cars0.5%
Failed outright at MOT: 0%, against 0% of all 2016 cars. The rest were advisories or minor defects.
Rough price £300–£1,000 our estimateAt the viewing: Look underneath at the frame the suspension bolts to. Flaky rust or holes are expensive to fix.
Common 2016 MG GS MOT failures and advisories
The share of 2016 MG GS MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres32% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Brakes24% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Lights and electrics22% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Suspension6% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Wipers, windscreen and mirrors5% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Exhaust and emissions4% of testsRough price £100–£1,200
At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.
Questions to ask the seller before buying a 2016 MG GS
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the headlight aim? (Flagged at MOT 4.3× as often on the 2016 MG GS as on other cars the same age.)
- Any recent work on the number plate lights? (Flagged at MOT 2.2× as often on the 2016 MG GS as on other cars the same age.)
- Any recent work on the anti-lock braking system? (Flagged at MOT 12.5× as often on the 2016 MG GS as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at an MG GS?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the MG GS compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2019 | 1,118 | Tyres 33% |
| 2018 | 2,862 | Tyres 34% |
| 2017 | 2,796 | Tyres 33% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of MG GS cars first registered in 2016. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score