Used car guide

2018 Dacia Logan: common problems and what to check

What gets flagged at MOT on 2018 Dacia Logans, from 1,761 tests in 2025, plus known faults and what to look at before you buy one.

1,761MOT tests in 2025
70%pass first time (all 2018 cars: 81%)
7,700typical miles a year
4.9×the usual rate for headlight aim

What stands out

Parts flagged at MOT more often on 2018 Dacia Logans than on all cars registered in 2018.

  • Headlight aim4.9× usual
    Dacia Logan
    8.3% All 2018 cars
    1.7%

    Failed outright at MOT: 8.3%, against 1.7% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £20–£60 our estimate

    At the viewing: Park facing a wall at night or in a garage and check both headlight beams sit level. Aim is a cheap adjustment.

  • Number plate lights2.9× usual
    Dacia Logan
    5.3% All 2018 cars
    1.8%

    Failed outright at MOT: 1.5%, against 0.6% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £5–£40 our estimate

    At the viewing: Check the number plate lights work and the plates are clean and legal.

  • Anti-roll bar link bushes15.5× usual
    Dacia Logan
    3.1% All 2018 cars
    0.2%

    Failed outright at MOT: 1.2%, against 0% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £100–£280 (pair of drop links) Checkatrade

    At the viewing: Drive slowly over bumps and listen for a knock or rattle from the front. Worn anti-roll bar links are a cheap fix.

  • Brake lights4.2× usual
    Dacia Logan
    3.8% All 2018 cars
    0.9%

    Failed outright at MOT: 3%, against 0.7% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

  • Washers2.6× usual
    Dacia Logan
    3.9% All 2018 cars
    1.5%

    Failed outright at MOT: 3.9%, against 1.5% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £15–£60 our estimate

    At the viewing: Test the wipers and washers on every speed.

Better than most

Brake pads: 5.5% here, against 11% of all 2018 cars.

By area

The share of 2018 Dacia Logan MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Tyres
    29% 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.

  • Lights and electrics
    21% of testsRough price £10–£80

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

  • Brakes
    17% 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
    10% of testsRough price £15–£250

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

  • Suspension
    9% 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.

  • Seats and seatbelts
    3% of testsRough price £80–£250

    At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.

Looking at a Dacia Logan?

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Other years

YearMOT testsMost flagged
2020823Tyres 28%
20192,260Tyres 29%
20172,256Tyres 29%
20162,701Tyres 32%
20152,916Tyres 34%
20141,926Tyres 35%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2018 Dacia Logans registered in 2018. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score