Used car guide

2021 Vauxhall Grandland diesel: common problems and MOT failures

What MOT testers find on the diesel Vauxhall Grandland first registered in 2021 (diesel cars only): we looked at the 2,508 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

2,508MOTs of 2021 diesel cars, done in 2023–2025
88%pass first time (all 2021 cars: 87%)
10,200typical miles a year
1.9×the usual rate for brake discs

What goes wrong more than usual on a 2021 Vauxhall Grandland diesel?

Parts flagged at MOT more often on the 2021 Vauxhall Grandland diesel than on all cars registered in 2021.

  • Brake discs1.9× usual
    Vauxhall Grandland
    11.3% All 2021 cars
    6%

    Failed outright at MOT: 0.4%, against 0.3% of all 2021 cars. The rest were advisories or minor defects.

    Rough price £150–£350 our estimate

    At the viewing: Look through the wheel at the brake disc: a deep lip at the edge or heavy scoring means they're worn. Feel for judder when braking.

Common 2021 Vauxhall Grandland diesel MOT failures and advisories

The share of 2021 Vauxhall Grandland diesel 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
    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
    4% of testsRough price £15–£250

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

  • Lights and electrics
    3% of testsRough price £10–£80

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

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

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

  • Driveshafts and joints
    2% of testsRough price £60–£350

    At the viewing: On full steering lock, drive slowly and listen for clicking from the front wheels.

Known faults on the 2021 Vauxhall Grandland diesel

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

  • Piston recall: engine failure

    All engines

    Pistons may not meet specification, letting oil into the intake. In extreme cases the engine can fail, and dealers will replace it. 2018 cars could also leak oil from a block plug.

    At the viewing: Ask a Vauxhall dealer to check the VIN for outstanding recalls.

    Source: What Car?: used Vauxhall Grandland X (2018 on) reliability

  • Side airbag and seatbelt recalls

    Some cars

    Leather seat stitching could stop the side airbag deploying, and a few cars had a centre rear belt not fastened at the factory.

    At the viewing: Ask for proof the recalls were done.

    Source: What Car?: used Vauxhall Grandland X (2018 on) reliability

  • Infotainment freezing

    All engines

    The infotainment can freeze or crash and may need an update.

    At the viewing: Use the screen during the test drive.

    Source: What Car?: used Vauxhall Grandland X (2018 on) reliability

Questions to ask the seller before buying a 2021 Vauxhall Grandland diesel

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

  1. Have the piston and oil plug recalls been done?
  2. Has the leather seat airbag recall been done?
  3. Any recent work on the brake discs? (Flagged at MOT 1.9× as often on the 2021 Vauxhall Grandland diesel as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at a Vauxhall Grandland?

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

Other years

Every year of the Vauxhall Grandland compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023460Tyres 26%
20227,446Tyres 28%
202054,816Tyres 27%
201967,164Tyres 28%
201847,936Tyres 28%
2017152Tyres 34%

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