Used car guide

2018 Volkswagen Tiguan diesel: common problems and MOT failures

What MOT testers find on the diesel Volkswagen Tiguan first registered in 2018 (diesel cars only): we looked at the 62,874 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

62,874MOTs of 2018 diesel cars, done in 2023–2025
86%pass first time (all 2018 cars: 83%)
8,800typical miles a year
2.2×the usual rate for suspension arm bushes and joints

What goes wrong more than usual on a 2018 Volkswagen Tiguan diesel?

Parts flagged at MOT more often on the 2018 Volkswagen Tiguan diesel than on all cars registered in 2018.

  • Suspension arm bushes and joints2.2× usual
    Volkswagen Tiguan
    5% All 2018 cars
    2.3%

    Failed outright at MOT: 1.3%, against 0.4% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £120–£180 (one arm) ClickMechanic

    At the viewing: Listen for clunks over bumps and feel for the steering wandering. Worn arm bushes show as cracked rubber near the wheels.

  • Engine warning light2.4× usual
    Volkswagen Tiguan
    2.2% All 2018 cars
    0.9%

    Failed outright at MOT: 2.2%, against 0.9% 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.

Common 2018 Volkswagen Tiguan diesel MOT failures and advisories

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

  • Tyres
    28% 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
    21% 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.

  • 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
    5% of testsRough price £80–£250

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

  • 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.

Known faults on the 2018 Volkswagen Tiguan 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.

  • Several recalls

    All engines

    Recalls cover a roof spoiler that could come off, overheating starter motors, front seat backs, seatbelt pre-tensioners and airbags.

    At the viewing: Ask a VW dealer to check the VIN.

    Source: Auto Express: used VW Tiguan Mk2 buyer's guide

  • Cambelt checks

    All except 2.0 petrol

    All engines except the 2.0 petrol use a cambelt that should be checked after five years and changed if worn.

    At the viewing: Look for a cambelt check or change in the history.

    If it needs doing: Timing belt (cambelt) change, about £300–£700 (often with the water pump). ClickMechanic

    Source: Auto Express: used VW Tiguan Mk2 buyer's guide

Questions to ask the seller before buying a 2018 Volkswagen Tiguan diesel

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

  1. Has all the recall work been done?
  2. Has the cambelt been checked or changed?
  3. Any recent work on the suspension arm bushes and joints? (Flagged at MOT 2.2× as often on the 2018 Volkswagen Tiguan diesel as on other cars the same age.)
  4. Any recent work on the engine warning light? (Flagged at MOT 2.4× as often on the 2018 Volkswagen Tiguan diesel as on other cars the same age.)
  5. Can I see the service history and receipts for any big jobs?

Looking at a Volkswagen Tiguan?

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 Volkswagen Tiguan compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
20231,169Tyres 17%
202220,352Tyres 25%
202147,292Tyres 25%
202073,556Tyres 26%
2019106,748Tyres 28%
201778,400Tyres 28%
201655,370Tyres 28%
201559,433Suspension 36%
201445,791Suspension 39%
201336,632Suspension 40%
201226,911Suspension 43%
201120,263Suspension 47%
201019,845Suspension 54%
200918,184Suspension 55%
200812,441Suspension 56%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Volkswagen Tiguan cars first registered in 2018. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score