IsItAGoodCar
Reliability Guide

Common Problems with the
2023 Mazda 6 (GL)

The final year of Mazda 6 production. These late cars are excellent used buys, offering Mazda luxury and driving pleasure at very affordable prices.

What changed for 2023

  • •Last year of Mazda 6 production
  • •All mechanical improvements incorporated
  • •Strong used values reflecting quality
  • •2.0 and 2.5 petrol engines both proven reliable

Common MOT watch-outs

  • !Age-related suspension wear on newer cars
  • !i-ELOOP system checks essential
  • !Boot seal integrity checking
2
Known Issues
1
Serious
0
Moderate
1
Minor

All Known Issues

i-ELOOP Capacitor Failure

SeriousElectrics & Electronics

The energy recovery capacitor can fail, which disables the i-stop system and triggers a dashboard warning.

Est. Repair Cost: £800–£1,200
Warning Signs:

i-ELOOP warning message, Battery not charging correctly, i-stop unavailable

What to Inspect:
  • Check for charging system warnings on the dashboard
Verified by IsItAGoodCar Research Team

Boot Seal Water Ingress

MinorBodywork & Rust

Water can creep past rear lamp seals or boot-area vents, leaving a damp spare-wheel well and occasional condensation issues.

Est. Repair Cost: £0–£200
Warning Signs:

Condensation in boot area, Wet boot floor, Musty smell after rain

What to Inspect:
  • Lift the boot floor and feel around the spare-wheel well and side trims
Verified by IsItAGoodCar Research Team

Buying Tips for 2023 Mazda 6 (GL)

  • Late 2.0 and 2.5 petrols are the safest buys; treat any 2.2 diesel as a specialist purchase.
  • Check the 360 camera, parking sensors and electric seat functions on high-spec GT Sport Tech cars.
  • Inspect the boot floor and rear lamp area for signs of past water ingress.
2022
Check a 2023 Mazda 6 (GL) by Registration