Used car guide

2003 Alfa Romeo 156: common problems and what to check

What gets flagged at MOT on 2003 Alfa Romeo 156s, from 198 tests in 2025, plus known faults and what to look at before you buy one.

Small sample: only 198 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.

198MOT tests in 2025
67%pass first time (all 2003 cars: 59%)
4,500typical miles a year
39%had suspension flagged

What gets flagged at MOT

The share of 2003 Alfa Romeo 156 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    39% 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
    26% 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
    24% of testsRough price £10–£80

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

  • Tyres
    24% 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.

  • Oil and fluid leaks
    16% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

  • Exhaust and emissions
    12% 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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Other years

YearMOT testsMost flagged
2005123Suspension 46%
2004166Suspension 37%
2002156Suspension 35%
2001122Suspension 40%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2003 Alfa Romeo 156s registered in 2003. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score