2018 Citroën C4 Cactus Problems: 2 Issues Every Owner Should Know
2018 model year · 75+ owner reports · Updated April 2026
According to Au7o's analysis of 75+ owner reports, the 2018 Citroën C4 Cactus has 2 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $0 to $500. DIY maintenance guides at au7o.io.
All 2 Known Issues
On the 2014-2020 Citroën C4 Cactus, the signature Airbump side panels on the C4 Cactus deform and discolour over time, particularly in hot climates and where exposed to direct sunlight. The thermoplastic polyurethane panels lose their shape and develop a yellowed appearance.
Common Symptoms
- Panel deformation
- Yellowing/discolouration
- Panels pulling away from body
- Loss of cushioning effect
How to Fix
Replace the affected Airbump panels. Use UV protectant spray on remaining panels to slow degradation. There is no repair for deformed panels; replacement is the only option.
On the 2014-2020 Citroën C4 Cactus, the C4 Cactus 7-inch touchscreen infotainment system experiences freezes and crashes, particularly during navigation and Bluetooth audio playback. The system can become completely unresponsive, requiring a hard reset.
Common Symptoms
- Touchscreen freeze
- System crashes
- Bluetooth audio dropout
- Navigation freeze
How to Fix
Perform a hard reset by holding the power button. Update the infotainment firmware to the latest version at a dealer. Factory reset and re-pair all Bluetooth devices.