Used car guide

2020 Renault Kadjar petrol: common problems and MOT failures

What MOT testers find on the petrol Renault Kadjar first registered in 2020 (petrol cars only): we looked at the 20,756 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

20,756MOTs of 2020 petrol cars, done in 2023–2025
85%pass first time (all 2020 cars: 87%)
6,800typical miles a year
1.8×the usual rate for tyre condition

What goes wrong more than usual on a 2020 Renault Kadjar petrol?

Parts flagged at MOT more often on the 2020 Renault Kadjar petrol than on all cars registered in 2020.

  • Tyre condition1.8× usual
    Renault Kadjar
    19.7% All 2020 cars
    11.2%

    Failed outright at MOT: 5.9%, against 3.5% of all 2020 cars. The rest were advisories or minor defects.

    Rough price £70–£150 our estimate

    At the viewing: Check the tread on all four tyres, including the inside edges. Uneven wear can point to tracking or suspension problems.

  • Wheels3.3× usual
    Renault Kadjar
    2% All 2020 cars
    0.6%

    Failed outright at MOT: 0.2%, against 0.2% of all 2020 cars. The rest were advisories or minor defects.

    Rough price £70–£150 our estimate

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Headlight aim1.7× usual
    Renault Kadjar
    2.5% All 2020 cars
    1.5%

    Failed outright at MOT: 2.5%, against 1.5% of all 2020 cars. The rest were advisories or minor defects.

    Rough price £20–£60 our estimate

    At the viewing: Park facing a wall at night or in a garage and check both headlight beams sit level. Aim is a cheap adjustment.

Common 2020 Renault Kadjar petrol MOT failures and advisories

The share of 2020 Renault Kadjar petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    31% 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
    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
    8% 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.

  • Seats and seatbelts
    4% of testsRough price £80–£250

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

  • Suspension
    3% 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.

Known faults on the 2020 Renault Kadjar petrol

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

  • 1.2 TCe petrol can use oil

    1.2 TCe petrol

    The 1.2 TCe petrol engine can burn oil, and some owners have needed a replacement engine. Owners are advised to check the oil every 1,000-2,000 miles.

    At the viewing: Check the dipstick level, look for blue smoke on start-up, and look for oil top-ups in the service history.

    Source: Auto Express: used Renault Kadjar Mk1 (2015-date) review

  • Child lock recall (built up to July 2018)

    Cars built up to July 2018

    Over 45,000 Kadjars built up to July 2018 were recalled in August 2020 because the rear child locks could be faulty.

    At the viewing: Test that the rear child locks work. Confirm with a Renault dealer, using the VIN, that the recall has been done.

    Source: Auto Express: used Renault Kadjar Mk1 (2015-date) review

  • Airbag, seatbelt and brake servo recalls

    Early cars (recalls issued 2016-2017)

    Early cars were recalled for side airbags that might not inflate properly (April 2016 and again September 2017), a seatbelt fault (April 2016) and a possible brake servo failure (January 2016). The source doesn't give build dates for these.

    At the viewing: Run the VIN through a Renault dealer or the DVSA recall checker. Make sure the airbag light goes out after start-up and the brake pedal feels firm.

    Source: Auto Express: used Renault Kadjar Mk1 (2015-date) review

  • Flat 12V battery and beeping alarm

    All engines

    The battery can run down, especially if the car isn't used much, and the alarm beeps when charge is low. Faulty tilt sensors can also set it off.

    At the viewing: Make sure the car starts easily and the alarm isn't beeping. Ask how old the battery is.

    Source: Auto Express: used Renault Kadjar Mk1 (2015-date) review

  • Infotainment glitches

    All engines

    Some owners report problems with Bluetooth and sat-nav, and What Car? also mentions small infotainment faults.

    At the viewing: Pair your phone, run the sat-nav, and check every screen function works. Make sure gear changes are smooth.

    Source: Auto Express: used Renault Kadjar Mk1 (2015-date) review, What Car?: used Renault Kadjar 2015-2022 reliability

Questions to ask the seller before buying a 2020 Renault Kadjar petrol

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

  1. How often do you top up the oil, and has the engine ever been replaced or repaired under warranty?
  2. Has the child door lock recall been done?
  3. Have all the airbag, seatbelt and brake servo recalls been carried out?
  4. Any recent work on the tyre condition? (Flagged at MOT 1.8× as often on the 2020 Renault Kadjar petrol as on other cars the same age.)
  5. Any recent work on the wheels? (Flagged at MOT 3.3× as often on the 2020 Renault Kadjar petrol as on other cars the same age.)
  6. Any recent work on the headlight aim? (Flagged at MOT 1.7× as often on the 2020 Renault Kadjar petrol as on other cars the same age.)

Looking at a Renault Kadjar?

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Other years

Every year of the Renault Kadjar compared

YearMOT testsMost flagged
2022700Tyres 19%
20213,156Tyres 24%
201934,689Tyres 34%
201832,521Tyres 33%
201743,253Tyres 34%
201656,640Tyres 33%
20159,022Tyres 34%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Renault Kadjar cars first registered in 2020. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score