Used car guide

2022 SEAT Leon diesel: common problems and MOT failures

What MOT testers find on the diesel SEAT Leon first registered in 2022 (diesel cars only): we looked at the 253 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 253 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

253MOTs of 2022 diesel cars, done in 2023–2025
84%pass first time (all 2022 cars: 89%)
16,000typical miles a year
12.2×the usual rate for shock absorbers

What goes wrong more than usual on a 2022 SEAT Leon diesel?

Parts flagged at MOT more often on the 2022 SEAT Leon diesel than on all cars registered in 2022.

  • Shock absorbers12.2× usual
    SEAT Leon
    14.6% All 2022 cars
    1.2%

    Failed outright at MOT: 1.2%, against 0.2% of all 2022 cars. The rest were advisories or minor defects.

    Rough price £200–£300 (pair, average rear to front) ClickMechanic

    At the viewing: Push down hard on each corner. It should bounce once and settle. Look for oil on the shock absorber body.

  • Tyre condition2.3× usual
    SEAT Leon
    21.7% All 2022 cars
    9.5%

    Failed outright at MOT: 7.1%, against 3.7% of all 2022 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.

Common 2022 SEAT Leon diesel MOT failures and advisories

The share of 2022 SEAT Leon diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    39% 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
    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.

  • Brakes
    10% 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.

  • 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.

  • Lights and electrics
    3% of testsRough price £10–£80

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

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

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

Known faults on the 2022 SEAT Leon diesel

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.

  • Seatbelt, airbag wiring and rear knuckle recalls

    Some cars

    Recalls covered front seatbelt anchors, an airbag harness caught by the clutch pedal, a rear knuckle screw, engine covers that could detach and a high-voltage fuse.

    At the viewing: Ask a SEAT dealer to check the VIN for outstanding recalls.

    Source: What Car?: used SEAT Leon (2020 on) reliability

  • Infotainment glitches and electrical warnings

    All engines

    48% of cars in What Car?'s survey had a fault, mostly infotainment, non-engine electrics and bodywork, and many took over a week to fix.

    At the viewing: Use the screen and check no warnings stay on.

    Source: What Car?: used SEAT Leon (2020 on) reliability

Questions to ask the seller before buying a 2022 SEAT Leon diesel

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

  1. Have all the recalls been done?
  2. Any recent work on the shock absorbers? (Flagged at MOT 12.2× as often on the 2022 SEAT Leon diesel as on other cars the same age.)
  3. Any recent work on the tyre condition? (Flagged at MOT 2.3× as often on the 2022 SEAT Leon diesel as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at a SEAT Leon?

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 SEAT Leon compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023–Too new for MOT data
202122,353Tyres 29%
202040,786Tyres 29%
201957,652Tyres 30%
201862,279Tyres 31%
201753,966Tyres 30%
201646,971Tyres 30%
201550,821Tyres 31%
201455,252Tyres 32%
201334,188Tyres 33%
201226,091Suspension 41%
201119,244Suspension 47%
201016,979Suspension 50%
200914,294Suspension 49%
200813,659Suspension 48%
200712,655Suspension 48%
20068,290Suspension 48%
20054,943Suspension 45%
20044,210Brakes 44%
20033,267Suspension 43%
20021,589Suspension 49%
2001757Suspension 47%
2000161Suspension 50%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of SEAT Leon cars first registered in 2022. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score