IsItAGoodCar
Reliability Guide

Common Problems with the
2025 BMW i4 (G26)

We've identified 1 known issue that can affect the 2025 BMW i4 (G26). None are considered critical, but they're worth knowing about before you buy.

1
Known Issues
0
Serious
1
Moderate
0
Minor

All Known Issues

Rear Air Suspension Bellow Pressure Loss and Overnight Sag

ModerateSuspension & Chassis

The standard self-levelling rear air suspension air bags can develop tiny micro-punctures or valve connector seepage, causing the rear end to sag after standing overnight.

Est. Repair Cost: £350–£800 per side
Warning Signs:

Rear ride height noticeably low after parking overnight, Air compressor runs loudly for 30+ seconds on startup, "Chassis: continue driving possible" message

What to Inspect:
  • Measure rear ride height before and after cold start
  • Listen for hissing near rear wheel arches
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2025 BMW i4 (G26)

  • ✓Test the curved iDrive display for lag or freezing, and ensure the latest OTA software updates have been applied.
  • ✓Verify the real-world range; the M50 model is incredibly fast but sacrifices significant range compared to the more sensible eDrive40.
  • ✓Inspect the charging port to ensure the locking pin works correctly; a jammed pin will prevent the car from releasing the charging cable.
  • ✓Check the condition of the rear tyres, as the massive instant torque (especially on the M50) wears them out very quickly.
  • ✓Listen for any knocking from the rear air suspension (standard on the i4 to handle the battery weight) over speed bumps.
  • ✓Ensure the artificial 'IconicSounds' generator works correctly when accelerating in Sport mode, though it can be turned off in the menus.
2024
Check a 2025 BMW i4 (G26) by Registration