IsItAGoodCar
Reliability Guide

Common Problems with the
2025 BMW iX (I20)

BMW released a facelifted iX in January 2025 as a 2026 model with improved range, power and efficiency plus minor styling adjustments, keeping the same body and interior layout. UK sales of the updated model run alongside late pre-facelift stock through 2026.

What changed for 2025

  • •Revised drive units and battery management for longer range and faster charging
  • •Minor exterior adjustments and updated interior trim options
  • •Latest generation of the operating system with extended assistance features

Common MOT watch-outs

  • !Charging and assistance warnings on cars straddling two software generations
  • !Tyre and brake wear on a heavy SUV, plus air suspension faults on early cars
  • !Camera and sensor damage from kerbing on the large front corners
2
Known Issues
1
Serious
1
Moderate
0
Minor

All Known Issues

Self-Healing Grille Panel Damage

SeriousBodywork & Rust

The front grille is a single smart panel housing the radar and camera. While it can heal minor scratches with heat, deep stone chips or impacts destroy the heating elements and sensors.

Est. Repair Cost: £1,000–£2,500
Warning Signs:

Radar failure warnings, Active cruise control disabled, Visible deep cracks

What to Inspect:
  • Inspect the grille under good lighting
  • Test adaptive cruise control on the test drive
Verified by IsItAGoodCar Research Team

Electrochromic Panoramic Glass Roof Dimming Inconsistency

ModerateBodywork & Rust

The standard electrochromic panoramic glass roof uses Polymer Dispersed Liquid Crystals (PDLC) to switch from transparent to opaque. Delamination or controller failure leaves patchy transparent blotches.

Est. Repair Cost: £0 (Warranty / £1,500–£3,500)
Warning Signs:

Uneven cloudiness across panoramic roof, Roof fails to turn opaque on button press, Flickering during transition

What to Inspect:
  • Press roof dimming toggle overhead and inspect entire roof surface from front to rear
  • Confirm uniform shading across all glass segments
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2025 BMW iX (I20)

  • Identify the facelift versus pre-facelift car by build date, because range and charging differ materially
  • Confirm the battery warranty is registered and transferable, whichever version you choose
20242026
Check a 2025 BMW iX (I20) by Registration