Caution! Do not attempt these procedures with disassembled brakes. Opening, closing, and testing the Electronic Parking Brakes (EPB) require properly installed pads and calipers. Follow these instructions precisely. Each step is crucial. Skipping steps can lead to unresolved issues. A full Auto-Scan with Vag Vcds 18.9 is recommended to identify pre-existing faults before starting.
Opening Rear Parking Brakes with VCDS 18.9
Prerequisites:
- All rear brake components must be assembled.
- Connect a battery charger according to your vehicle’s repair manual.
- Cycle the parking brake ON and OFF.
Procedure:
- Connect your VAG VCDS 18.9 interface to the vehicle’s OBD-II port.
- Turn the ignition ON.
- Open VCDS software and select [Select], then [53 – Parking Brake], followed by [Basic Settings – 04].
- Choose “Start lining change mode” and click [Go!]. The brake calipers will open for pad replacement.
- Once “Finished Correctly” appears, click [Stop], then [Done, Go Back], and finally [Close Controller, Go Back – 06].
- Turn the ignition OFF, but keep the battery charger connected.
Important Note: The caliper pistons will not retract automatically. Use a suitable hand tool to push them back. A flashing parking brake light is normal in this service mode, indicating the brake is disabled. Do not use the EPB switch or proceed to the closing procedure until the rear brakes are fully reassembled.
Closing Rear Parking Brakes with VCDS 18.9
Prerequisites:
- All rear brake components must be reassembled.
- Connect a battery charger according to your vehicle’s repair manual.
Procedure:
- Turn the ignition ON.
- In VCDS, navigate to [Select], [53 – Parking Brake], and [Basic Settings – 04].
- Select “End lining change mode” and click [Go!]. This will close the brake calipers.
- After seeing “Not Running” (or “Finished Correctly”), click [Stop], [Done, Go Back], and [Close Controller, Go Back – 06].
- With your foot on the brake pedal, cycle the parking brake ON and OFF using the vehicle’s switch.
- Use VCDS 18.9 to check for any fault codes before a test drive. This ensures the system is functioning correctly.
Conclusion
Using VAG VCDS 18.9 simplifies the process of servicing rear parking brakes on VAG vehicles. Following these steps carefully ensures proper brake function and prevents potential issues. Remember to consult your vehicle’s repair manual for specific instructions and safety precautions. Always prioritize safety when working on your vehicle’s braking system.
