Common Problems with the
2018 Infiniti Q50

We've identified 1 known issue that can affect the 2018 Infiniti Q50. None are considered critical, but they're worth knowing about before you buy.

1
Known Issues
0
Serious
1
Moderate
0
Minor

The 2018 period has an average number of reported issues compared to other Infiniti Q50 year periods.

All Known Issues

Hybrid 12V Battery Parasitic Drain

ModerateElectrics & Electronics

The auxiliary battery on Hybrid models can drain in as little as 10 days if left unused, leaving the car unable to start.

Most affected: Hybrid

Estimated cost: £150–£250Affects: 20132018Often appears around: Low-use vehicles

Typical symptoms

  • Car won't unlock or start
  • Multiple warning lights
  • Infotainment settings lost

What to inspect before you buy

  • Check the age of the 12V battery
  • Ask the owner if they use a trickle charger

Buying Tips for the 2018 Infiniti Q50

  • On cars equipped with Direct Adaptive Steering (DAS), ensure the steering feels consistent. Some early cars felt very artificial or suffered from "centering" issues.
  • The Hybrid model is very fast but its 12V auxiliary battery is prone to drain if the car isn't used regularly.
  • Check the lower screen of the InTouch system for responsiveness and any "delamination" or bubbling.

Browse 2018 Infiniti Q50 in our Directory

View MOT history, registration data, and reliability scores for 2018 Infiniti Q50 vehicles.

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Other Infiniti Q50 Year Periods

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