Electronic Parking Brake Control Switch with Hold Button for BMW E70 X5, E71 E72 X6 (Part 61319148508) - What it is: An electronic parking brake (EPB) system that automates the vehicle's conventional manual parking brake. - OE-grade design: Meets or exceeds original equipment specifications; application-specific design for BMW models E70 X5, E71 and E72 X6. - Robust control: Controller is designed to withstand a range of operating conditions and disturbances, including available vehicle battery voltage, ambient temperature, caliper/pad temperatures, length of the vehicle harness, and the normal brake hydraulic pressure already present on the caliper spindle. - How it works: The electronic parking brake engages through the friction between the brake rotor and the brake pad to hold and apply the parking brake. - Compatibility and installation: Fits BMW E70 X5, E71 E72 X6 models; part number 61319148508; designed for installation on these vehicles with the appropriate hold switch. - Key benefits: Improves parking convenience and consistency, reduces driver effort, and maintains OEM-level performance and reliability. - Use scenarios: 1) Retrofit or upgrade: Install on compatible BMW models to replace or supplement a manual handbrake with electronic control. 2) Post-service restoration: Replace or restore EPB function after brake service or component replacement to ensure proper parking brake operation. 3) Fleet or variable-condition use: Reliable parking brake performance in vehicles operating on inclines or under diverse environmental conditions, with consistent engagement.