IsItAGoodCar

Common Problems with the
2018–2020 Bentley Bentayga

We've identified 3 known issues that can affect the 2018–2020 Bentley Bentayga. 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
2
Moderate
0
Minor

The 2018–2020 period has 2 more issues than the Bentley Bentayga average across all year periods.

All Known Issues

Fuel Leak Recall

SeriousEngine

Early V8 models were subject to a recall for a potential fuel leak from the fuel line quick connector.

Most affected: 4.0 V8 Petrol

Estimated cost: Free (Recall)Affects: 2018–2020Often appears around: Any

Typical symptoms

  • •Smell of fuel
  • •Visible leak under the engine bay

What to inspect before you buy

  • ✓Confirm with a Bentley dealer that all safety recalls have been completed

Carbon Build-up (GDI Coking)

ModerateEngine

Direct injection leads to carbon deposits on intake valves, reducing performance and fuel economy.

Most affected: W12 and V8 Petrol

Estimated cost: £800–£1,500Affects: 2016–2024Often appears around: 40k–60k miles

Typical symptoms

  • •Rough idle
  • •Reduced power
  • •Flat spots during acceleration

What to inspect before you buy

  • ✓Ask if the car has had a carbon clean/walnut blast
  • ✓Check for smooth idling when cold

Infotainment and Electrical Glitches

ModerateElectrics & Electronics

The Bentayga's complex electronics, including the infotainment touchscreen, parking sensors, and adaptive cruise control, are prone to software bugs and random reboots. Moisture ingress into wiring can cause cascading electrical failures.

Most affected: All variants

Estimated cost: £500–£2,000Affects: 2016–2024Often appears around: Age-related

Typical symptoms

  • •Touchscreen freezes or goes blank
  • •Bluetooth connectivity drops
  • •Random system reboots while driving
  • •Parking sensor or camera failures

What to inspect before you buy

  • ✓Test all infotainment functions from cold start
  • ✓Check for the latest software updates in service history
  • ✓Verify all parking sensors and cameras operate correctly

Buying Tips for the 2018 Bentley Bentayga

  • ✓Check for "walnut blasting" in the service history to address carbon build-up.
  • ✓Verify all recalls have been performed, especially those regarding fuel leaks.
  • ✓Inspect the condition of the massive tyres; replacements are £300–£450 each.
  • ✓Test the panoramic sunroof for smooth operation and signs of water ingress.
2016–2017 Bentley Bentayga2021–2024 Bentley Bentayga

Browse 2018–2020 Bentley Bentayga in our Directory

View MOT history, registration data, and reliability scores for 2018–2020 Bentley Bentayga vehicles.

View 2018–2020 Directory

Other Bentley Bentayga Year Periods

2016–20172018–20202021–2024

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