Used car guide

2017 Infiniti Q30 petrol: common problems and MOT failures

What MOT testers find on the petrol Infiniti Q30 first registered in 2017 (petrol cars only): we looked at the 1,513 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

1,513MOTs of 2017 petrol cars, done in 2023–2025
85%pass first time (all 2017 cars: 80%)
6,600typical miles a year
3.6×the usual rate for sidelights

What goes wrong more than usual on a 2017 Infiniti Q30 petrol?

Parts flagged at MOT more often on the 2017 Infiniti Q30 petrol than on all cars registered in 2017.

  • Sidelights3.6× usual
    Infiniti Q30
    2.9% All 2017 cars
    0.8%

    Failed outright at MOT: 1.1%, against 0.7% of all 2017 cars. The rest were advisories or minor defects.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

  • Link ball joint covers7.3× usual
    Infiniti Q30
    2.2% All 2017 cars
    0.3%

    Failed outright at MOT: 0.9%, against 0.2% of all 2017 cars. The rest were advisories or minor defects.

    Rough price £60–£150 (one joint) ClickMechanic

    At the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.

Common 2017 Infiniti Q30 petrol MOT failures and advisories

The share of 2017 Infiniti Q30 petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    30% 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.

  • Brakes
    21% 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 electrics
    7% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Suspension
    7% 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 mirrors
    4% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

  • Seats and seatbelts
    2% of testsRough price £80–£250

    At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.

Questions to ask the seller before buying a 2017 Infiniti Q30 petrol

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Any recent work on the sidelights? (Flagged at MOT 3.6× as often on the 2017 Infiniti Q30 petrol as on other cars the same age.)
  2. Any recent work on the link ball joint covers? (Flagged at MOT 7.3× as often on the 2017 Infiniti Q30 petrol as on other cars the same age.)
  3. Can I see the service history and receipts for any big jobs?

Looking at an Infiniti Q30?

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 Infiniti Q30 compared

YearMOT testsMost flagged
2019597Tyres 28%
2018919Tyres 28%
20165,295Tyres 30%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Infiniti Q30 cars first registered in 2017. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score