Used car guide

2020 Suzuki SX4: common problems and what to check

What gets flagged at MOT on 2020 Suzuki SX4s, from 894 tests in 2025, plus known faults and what to look at before you buy one.

894MOT tests in 2025
90%pass first time (all 2020 cars: 86%)
6,200typical miles a year
25%had tyres flagged

What gets flagged at MOT

The share of 2020 Suzuki SX4 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    25% 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
    12% 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
    6% 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
    5% 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.

  • Suspension
    1% 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.

Looking at a Suzuki SX4?

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Other years

YearMOT testsMost flagged
20222,705Tyres 16%
20211,725Tyres 20%
20192,025Tyres 25%
20182,718Tyres 29%
20173,207Tyres 28%
20163,368Tyres 29%
20153,712Tyres 31%
20146,336Brakes 34%
20133,280Suspension 39%
20121,898Suspension 51%
20112,124Suspension 53%
20101,906Suspension 55%
20091,717Suspension 57%
20082,128Suspension 58%
20071,995Suspension 57%
2006750Suspension 55%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2020 Suzuki SX4s registered in 2020. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score