Audi A4 Electronic Handbrake Failure Needs Urgent Fix

Last month faced similar electronic brake issues with my 2019 Audi A5. The parking brake warning appeared and the system stopped engaging completely. The root cause was a faulty brake switch in the electronic brake module. The brake control unit was receiving incorrect signals, causing the system to enter a fail-safe mode. After proper diagnostics, it turned out the brake calliper motor had failed, requiring a complete replacement of the calliper assembly. This is definitely a serious issue requiring immediate attention, as the electronic parking brake is a critical safety system. The repair typically involves: 1. Full electronic diagnostic scan 2. Testing the brake calliper motor function 3. Replacing the defective brake calliper assembly 4. Recalibrating the parking brake system 5. Final testing under various conditions Would suggest requesting a certified shop to perform complete diagnostics focusing on the brake control module and calliper motors. The fault codes should point directly to the failing component. Its worth noting that partial repairs or quick fixes rarely solve electronic brake issues permanently. A full electronic brake system inspection will help identify if its the motor, switch, or control unit causing the malfunction.

Thanks for the detailed info about the electronic brake repair. Had almost identical symptoms with my A4 last winter. My parking brake also refused to engage and the system kept showing errors. Would be really helpful to know what repair costs you faced, since my brake diagnostics revealed similar issues with the calliper motor and control unit. Did any system glitches pop up again after the repair was completed?

Following up on your question, I had the issue fully resolved by a certified shop. The electronic parking brake has been working flawlessly since the repair was completed 3 months ago. No warning lights or system errors have reappeared. The total repair cost came to 505 Euro, which covered replacing the defective electric motor in the brake calliper. The brake diagnostics showed this was the root cause of the parking brake malfunction. The repair included a complete system calibration and testing to ensure proper brake control functionality. The investment was worth it for the peace of mind, knowing the parking brake system is now operating safely and reliably. Based on my experience, addressing these electronic brake issues promptly with proper repairs prevents more extensive problems down the line. Just keep monitoring your brake system performance after the repair. A properly functioning electronic parking brake should engage smoothly without any warning indicators or error messages.

Thanks everyone for the helpful responses. Finally got my electronic brake system fixed properly. After taking it to a certified Audi service center, they ran a complete brake diagnostics which showed issues with both the brake sensor and calliper motor. The repair took about 4 hours and cost 680 Euro total. They replaced the faulty brake calliper assembly and recalibrated the entire parking brake system. The mechanic also updated the control module software to prevent future system glitches. Its been 2 weeks now and the electronic parking brake works perfectly, no more warning lights or engagement problems. Definitely worth getting it properly diagnosed and fixed rather than trying quick temporary solutions. The brake switch and all other components are working as they should. Really glad I sought advice here before proceeding with the repair. Having a properly functioning parking brake system gives great peace of mind.