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 |
