Used car guide

2015 Infiniti Q50 petrol: common problems and MOT failures

What MOT testers find on the petrol Infiniti Q50 first registered in 2015 (petrol cars only): we looked at the 284 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 284 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

284MOTs of 2015 petrol cars, done in 2023–2025
84%pass first time (all 2015 cars: 74%)
7,600typical miles a year
10.3×the usual rate for anti-roll bar link joints

What goes wrong more than usual on a 2015 Infiniti Q50 petrol?

Parts flagged at MOT more often on the 2015 Infiniti Q50 petrol than on all cars registered in 2015.

  • Anti-roll bar link joints10.3× usual
    Infiniti Q50
    11.3% All 2015 cars
    1.1%

    Failed outright at MOT: 1.8%, against 0.4% of all 2015 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 2015 Infiniti Q50 petrol MOT failures and advisories

The share of 2015 Infiniti Q50 petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    27% 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.

  • Suspension
    21% 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.

  • Brakes
    16% 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.

  • Wipers, windscreen and mirrors
    5% of testsRough price £15–£250

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

  • Oil and fluid leaks
    2% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

Questions to ask the seller before buying a 2015 Infiniti Q50 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 anti-roll bar link joints? (Flagged at MOT 10.3× as often on the 2015 Infiniti Q50 petrol as on other cars the same age.)
  2. Can I see the service history and receipts for any big jobs?

Looking at an Infiniti Q50?

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 Q50 compared

YearMOT testsMost flagged
2019–Too few tests
2018761Brakes 29%
20171,205Tyres 27%
20161,891Tyres 30%
20141,195Suspension 33%
2013–Too few tests

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 Q50 cars first registered in 2015. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score