Used car guide

1999 Peugeot 406: common problems and what to check

What gets flagged at MOT on 1999 Peugeot 406s, from 195 tests in 2025, plus known faults and what to look at before you buy one.

Small sample: only 195 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.

195MOT tests in 2025
59%pass first time (all 1999 cars: 65%)
4,700typical miles a year
42%had suspension flagged

What gets flagged at MOT

The share of 1999 Peugeot 406 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    42% 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
    37% 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
    36% 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
    32% 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
    26% 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
    17% 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.

Looking at a Peugeot 406?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

YearMOT testsMost flagged
2004144Suspension 54%
2003500Suspension 51%
2002486Suspension 45%
2001457Suspension 50%
2000329Suspension 51%
1998196Brakes 46%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 1999 Peugeot 406s registered in 1999. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score