A4 Mk3
Electronic parking brake (EPB) - overview |
1 - | Parking brake contact switch -F321- |
Switch is permanently lit for easy identification at night |
q | Pull switch ⇒ to apply „handbrake “. |
q | Press switch ⇒ to release brake; vehicle must then be held with footbrake |
q | Fitting location: in centre console |
q | Removing and installing → Chapter |
2 - | LED (light-emitting diode) |
q | Fitting location: in parking brake switch |
q | Lights up when parking brake is applied |
q | Indicator lamp in instrument cluster as additional display |
Indicator bar lights up red when vehicle is retarded by EPB at speeds above 7 km/h. The system also sounds an audible warning tone. |
3 - | EPB system fault warning lamp (yellow) |
q | In case of malfunction of the parking brake the yellow symbol in the instrument cluster display lights up additionally and the warning: Parking brake! is displayed. |
4 - | Indicator lamp for electromechanical parking brake |
Lamp lights up red: |
q | To indicate that required clamping force has been built up |
q | The lamp lights up with parking brake applied and ignition switched on. |
q | The lamp stays on for approx. 20 seconds after the ignition is switched off. |
q | If the parking brake is applied with ignition switched off, the lamp lights up for approx. 20 seconds. |
q | The lamp should go out when the parking brake is released. |
Lamp flashes red: |
If the lamp flashes red continuously after the parking brake has been applied, this can have one of the following causes: |
t | The braking force developed by the parking brake is not sufficient to prevent the vehicle from rolling |
t | The temperature of the brakes is too high |
If the lamp flashes red, the vehicle must be held by another means |
Lamp lights up green: |
q | Lamp indicates that Audi hold assist (AHA) is active |
Yellow warning lamp lights up additionally: |
q | In case of malfunction of the parking brake the yellow symbol in the instrument cluster display lights up additionally and the warning: Parking brake! is displayed. |
5 - | Actuator motor for electronic parking brake with brake caliper (right-side) |
q | Removing and installing → Chapter |
q | Detaching and attaching brake caliper → Chapter |
6 - | Control unit for electromechanical parking brake -J540- |
q | Fitting location: in rear right side panel behind side trim |
q | Removing and installing → Chapter |
q | 9 Nm |
7 - | Actuator motor for electronic parking brake with brake caliper (left-side) |
q | Removing and installing → Chapter |
q | Detaching and attaching brake caliper → Chapter |
8 - | Acoustic signal |
q | Warning signal if parking brake is operated while road speed is above 7 km/h |
q | Warning signal if a fault is detected in system |