RS5 E-Brake Failure After Suspicious Mechanic Visit

Had the same electronic brake failure on my S5 2014. The brake control module showed multiple error codes during diagnostics. The root cause was a defective electric motor in the parking brake caliper, which prevented proper engagement. The brake diagnostics revealed the parking brake actuator had seized, triggering the warning light and safety system response. The brake sensor readings confirmed the caliper motor failure rather than a wiring issue. This required complete replacement of the parking brake assembly. Not a minor repair since the entire brake control system needs recalibration after component replacement to ensure proper function. The repair took about 6 hours at a certified shop. Had to order specific parts. Worth noting this is a safety-critical repair that requires proper diagnostic equipment and expertise with electronic brake systems. My recommendation: Get it checked immediately. A malfunctioning electronic parking brake can lead to serious safety issues. Make sure to have the brake diagnostics done with professional equipment to pinpoint the exact failure point before any repairs. Would suggest having both calipers inspected even if only one shows failure, as these components often wear similarly.

Thanks for confirming my suspicions about the electronic brake issue. My car recently showed similar symptoms. The brake control system went into failsafe mode after the warning lights appeared. The parking brake refused to disengage properly too. Just had it fixed last month but wanted to check, do you remember roughly what you paid for the complete repair? Also curious if youve experienced any other brake system glitches since getting it fixed? Mine still makes an occasional clicking sound when engaging the parking brake, though the brake switch and controls work fine otherwise.

After getting the electronic brake fixed last month, I can report zero issues with the brake control system. The repair cost came to 505 Euro for replacing the defective electric motor in the brake caliper, including recalibration of the electronic brake components. The clicking sound you mention is actually normal operation of the brake sensor and actuator mechanism. However, if you have any doubts, having regular brake diagnostics performed helps ensure optimal vehicle safety and catch potential issues early. My original repair has held up perfectly, no warning lights, error codes, or operational problems since the fix. The electronic parking brake engages smoothly every time. Given the critical nature of brake system components, the investment in proper repairs using quality parts was definitely worthwhile. For reference, the complete fix included: New brake caliper motor, System recalibration, Full brake diagnostics, Testing of all electronic brake functions If your clicking concerns persist, a quick diagnostic check can verify everything is functioning within normal parameters.

Thanks everyone for sharing your experiences. I took my car to a certified shop last week based on the advice here. The brake diagnostics confirmed a faulty electronic brake actuator. Total repair cost was 595 Euro which included replacing both parking brake motors and a full system recalibration. The mechanic showed me the worn components and explained how the electronic brake control system works. The repair took about 5 hours. They also cleaned and adjusted the brake switch mechanism while everything was apart. Been driving for a week now and the electronic brake works perfectly, no more warning lights or error codes. The clicking noise I mentioned earlier is completely gone too. Feels good having proper brake control again. Much better experience than my previous repair attempts. Definitely worth paying for proper brake diagnostics and using quality parts. Vehicle safety is now back to where it should be.