The BMW error code refers specifically to a fault with the KAFAS camera window heating element . This heating grid is integrated into the windshield to prevent fogging or frost from obstructing the front-facing camera's view. Code Definition
⚠️ Note: If turn signals stop working, this can affect road safety and legal compliance. Have it diagnosed promptly. bmw error-800ac5
Examine the small triangular or rectangular area on the windshield in front of the rearview mirror. The BMW error code refers specifically to a
: A missing or loose plug in the camera compartment behind the rearview mirror can result in an "open circuit" fault. Mobile Windscreen Replacement | Tweed Heads Troubleshooting & Repairs BMW KAFAS Advanced Driver Assistance Problems Have it diagnosed promptly
: If the windshield was recently replaced with a non-OEM part (such as a
: KAFAS camera window heating: Short circuit to B+ or open circuit.
glass without the heating grid), the system will trigger this code because it cannot find the heater circuit. Wiring/Connection Issues