Used car guide

2021 Alfa Romeo Giulietta petrol: common problems and MOT failures

What MOT testers find on the petrol Alfa Romeo Giulietta first registered in 2021 (petrol cars only): we looked at the 100 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 100 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

100MOTs of 2021 petrol cars, done in 2023–2025
87%pass first time (all 2021 cars: 87%)
6,400typical miles a year
26%had tyres flagged

Common 2021 Alfa Romeo Giulietta petrol MOT failures and advisories

The share of 2021 Alfa Romeo Giulietta petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    26% 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
    13% 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
    4% 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.

  • 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 an engine warning light.

Questions to ask the seller before buying a 2021 Alfa Romeo Giulietta petrol

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

  1. Can I see the service history and receipts for any big jobs?

Looking at an Alfa Romeo Giulietta?

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Other years

Every year of the Alfa Romeo Giulietta compared

YearMOT testsMost flagged
20201,527Tyres 27%
20191,545Tyres 29%
20182,482Tyres 30%
20174,545Tyres 31%
20168,352Tyres 33%
20158,950Tyres 32%
20149,284Tyres 34%
20139,117Tyres 36%
201210,027Suspension 39%
201115,260Suspension 45%
20105,115Suspension 43%
1983–Too few tests

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Alfa Romeo Giulietta cars first registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score