1. Blown fuse: Check the fuse box for a blown fuse that may be responsible for the display.
2. Loose wire connections: Check to ensure all the wires connected to the display are secure.
3. Faulty display unit: If the fuse and wire connections are intact, the display unit itself may be faulty and may need to be replaced.
4. Software issues: If the display unit is not showing any signs of hardware damage, there could be a software issue that may be causing the malfunction. This can often be resolved by updating the software or resetting the display unit.
5. Faulty iDrive controller: If your BMW 525i has an iDrive controller, it could be the source of the problem. A faulty iDrive controller can lead to display issues.
If you are not comfortable checking these issues yourself, it is recommended that you take your vehicle to a qualified mechanic or an authorized BMW dealership for proper diagnosis and repair.
