Used car guide

2014 Infiniti QX70: common problems and MOT failures

What MOT testers find on the Infiniti QX70 first registered in 2014: we looked at the 427 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 427 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

427MOTs of 2014 cars, done in 2023–2025
83%pass first time (all 2014 cars: 70%)
7,800typical miles a year
2.7×the usual rate for ball joint

What goes wrong more than usual on a 2014 Infiniti QX70?

Parts flagged at MOT more often on the 2014 Infiniti QX70 than on all cars registered in 2014.

  • Ball joint2.7× usual
    Infiniti QX70
    9.8% All 2014 cars
    3.6%

    Failed outright at MOT: 2.6%, against 2% of all 2014 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.

  • Rigid brake pipes2.5× usual
    Infiniti QX70
    7.7% All 2014 cars
    3.1%

    Failed outright at MOT: 1.6%, against 0.4% of all 2014 cars. The rest were advisories or minor defects.

    Rough price £100–£400 our estimate

    At the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.

Common 2014 Infiniti QX70 MOT failures and advisories

The share of 2014 Infiniti QX70 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    23% 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
    19% 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.

  • Suspension
    16% 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.

  • 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
    6% of testsRough price £15–£250

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

  • Steering
    4% of testsRough price £100–£450

    At the viewing: On a straight road the steering wheel should sit straight. Feel for play or knocking when turning.

Questions to ask the seller before buying a 2014 Infiniti QX70

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

  1. Any recent work on the ball joint? (Flagged at MOT 2.7× as often on the 2014 Infiniti QX70 as on other cars the same age.)
  2. Any recent work on the rigid brake pipes? (Flagged at MOT 2.5× as often on the 2014 Infiniti QX70 as on other cars the same age.)
  3. Can I see the service history and receipts for any big jobs?

Looking at an Infiniti QX70?

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 QX70 compared

YearMOT testsMost flagged
2017–Too few tests
2016404Tyres 25%
2015304Tyres 24%

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 QX70 cars first registered in 2014. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score