Used car guide · 2013–2019

Infiniti Q50 common problems and MOT failures

What goes wrong on a used Infiniti Q50, year by year: known faults from UK buying guides, the parts flagged at MOT more than on other cars (from 7,288 MOTs done during 2023–2025), and what to check before you buy one.

The 2013 Infiniti Q50

Too few Infiniti Q50 cars first registered in 2013 had an MOT during 2025 for reliable MOT figures. There are no known faults on record for this year in the UK buying guides we use, so the rest of this page covers the Infiniti Q50 as a whole.

17on the UK register at the end of 2025
Dieselmost common fuel (also petrol hybrid)
What to check on a 2013 car
  • MOT history

    Check the reg below: its MOT history shows what has been failed or advised, and whether the mileage adds up.

  • Service history

    Look for regular servicing and receipts for big jobs like a cambelt or clutch.

  • Finance and write-offs

    MOT records don’t show outstanding finance or insurance write-offs. A history check does.

  • Test drive

    Listen for knocks over bumps, check every warning light goes out, and make sure the gears and brakes feel right.

Other years

Most years have their own guide. The year is when the car was first registered (it’s on the logbook, or check the reg below).

2019201820172016201520142013

What usually goes wrong with an Infiniti Q50?

We haven’t found widely reported faults for the Infiniti Q50 in the UK buying guides we use yet. That doesn’t mean it has none, so check the car carefully and look at the MOT weak spots below.

Common Infiniti Q50 MOT failures to check

Parts flagged at MOT well above the usual rate for cars the same age, for each fuel on its own. From the DVSA’s results for every MOT done in Great Britain during 2023–2025.

Diesel

  • Anti-roll bar link joints

    up to 28.5× usual

    Stands out on cars registered in 2014, 2015, 2016, 2017 and 2018.

    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.

  • Ball joint

    up to 6.6× usual

    Stands out on cars registered in 2014, 2015, 2016, 2017 and 2018.

    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.

  • Brake pads

    up to 2× usual

    Stands out on cars registered in 2014, 2015, 2016 and 2018.

    Rough price £75–£175 (one axle) ClickMechanic

    At the viewing: Listen for squealing or grinding when braking, and look through the wheel at how much pad is left.

  • Wheel bearings

    up to 5.4× usual

    Stands out on cars registered in 2014, 2015 and 2016.

    Rough price £120–£300 (one bearing) ClickMechanic

    At the viewing: Listen for a hum or growl that changes as you steer at speed.

  • Sub-frame

    up to 4.8× usual

    Stands out on cars registered in 2014, 2015 and 2016.

    Rough price £300–£1,000 our estimate

    At the viewing: Look underneath at the frame the suspension bolts to. Flaky rust or holes are expensive to fix.

Infiniti Q50 MOT pass rate by year

Of the years since 2005 with plenty of MOT tests, the 2014 Infiniti Q50 did best (73% passed first time, 3 points above all 2014 cars) and the 2018 did worst (80%, 3 points below all 2018 cars). Older cars fail more, so compare each year with all cars registered the same year.

YearPass first timeAll cars that yearMOT tests
201880%83% -3761
201781%80% +11,205
201679%77% +21,891
201576%74% +22,236
201473%70% +31,195

Questions to ask the seller before buying an Infiniti Q50

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 27× as often on the Infiniti Q50 as on other cars the same age.)
  2. Any recent work on the ball joint? (Flagged at MOT 6.2× as often on the Infiniti Q50 as on other cars the same age.)
  3. Any recent work on the sub-frame? (Flagged at MOT 4.2× as often on the Infiniti Q50 as on other cars the same age.)
  4. 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, whether it already shows these weak spots and what to ask the seller. Free, no sign-up.

Where this comes from: MOT figures are the DVSA’s anonymised results for every MOT test done in Great Britain during 2023–2025, grouped by the year each car was first registered. How many are on the road is from the Department for Transport’s vehicle licensing statistics. Known faults are from UK buying guides, in our own words, with links. How we score