2018 Vauxhall Viva: common problems and what to check
What gets flagged at MOT on 2018 Vauxhall Vivas, from 5,461 tests in 2025, plus known faults and what to look at before you buy one.
What stands out
Parts flagged at MOT more often on 2018 Vauxhall Vivas than on all cars registered in 2018.
- Tyre condition1.6× usualVauxhall Viva22.5% All 2018 cars13.9%
Failed outright at MOT: 3.7%, against 3.4% of all 2018 cars. The rest were advisories or minor defects.
Rough price £70–£150 our estimateAt the viewing: Check the tread on all four tyres, including the inside edges. Uneven wear can point to tracking or suspension problems.
- Exhaust system6.3× usualVauxhall Viva6.9% All 2018 cars1.1%
Failed outright at MOT: 1.2%, against 0.2% of all 2018 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.
- Track rod ends2.1× usualVauxhall Viva3.5% All 2018 cars1.7%
Failed outright at MOT: 1%, against 0.8% of all 2018 cars. The rest were advisories or minor defects.
Rough price £50–£150 (one end, plus about £30–£50 if it needs a wheel alignment) ClickMechanicAt the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.
- Engine oil leaks2.1× usualVauxhall Viva2.9% All 2018 cars1.4%
Failed outright at MOT: 0.1%, against 0% of all 2018 cars. The rest were advisories or minor defects.
Rough price £80–£600 our estimateAt the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.
Brake discs: 4.2% here, against 10.8% of all 2018 cars.
By area
The share of 2018 Vauxhall Viva MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres31% 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.
- Brakes10% 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.
- Suspension10% 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.
- Exhaust and emissions7% 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.
- Wipers, windscreen and mirrors7% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Lights and electrics6% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2019 | 4,074 | Tyres 29% |
| 2017 | 9,694 | Tyres 31% |
| 2016 | 13,772 | Tyres 34% |
| 2015 | 5,117 | Tyres 37% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2018 Vauxhall Vivas registered in 2018. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score