Used car guide

2021 Fiat 500 Connect Mhev: common problems and what to check

What gets flagged at MOT on 2021 Fiat 500 Connect Mhevs, from 155 tests in 2025, plus known faults and what to look at before you buy one.

Small sample: only 155 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.

155MOT tests in 2025
86%pass first time (all 2021 cars: 87%)
5,500typical miles a year
22%had tyres flagged

What gets flagged at MOT

The share of 2021 Fiat 500 Connect Mhev MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    22% 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.

  • Wipers, windscreen and mirrors
    8% of testsRough price £15–£250

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

  • 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.

  • Brakes
    2% 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
    1% of testsRough price £10–£80

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

  • Exhaust and emissions
    1% of testsRough price £100–£1,200

    At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.

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Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2021 Fiat 500 Connect Mhevs registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score