| Item name | Spare part catalog number | Description |
| 1 | Traction ring | |
| 2 | Quick release coupling | |
| 3 | Parking brake control unit | |
| 4 | Sealing cuff | |
| 5 | Spring | |
| 6 | Inner cable | |
| 7 | Union | |
| 8 | Drive pulley |
The emergency release cable allows the parking brake to be mechanically released in the following cases:
- The parking brake cannot be released electrically due to a system malfunction.
- The battery is disconnected or its voltage has dropped below 7.5 V when the parking brake is applied, causing the parking brake to not be released electrically.
The parking brake is released mechanically by disconnecting the force sensor from the splined shaft in the parking brake control unit. In the normal state, the force sensor and the splined shaft are connected by a safety linkage operated by a lever on the end of the splined shaft, which engages a bushing on the force sensor.
The emergency release cable is a Bowden cable installed between the parking brake control unit and the center console. The emergency release cable is held in clamps on the underbody of the vehicle and passes into the passenger compartment under the center console through an opening in the transmission tunnel. The opening for the emergency release cable is sealed with a quick-release coupling. A sealing cuff is tightly fitted to the outside of the parking brake control unit housing.
In the center console, a traction ring is attached to the end of the inner cable. The traction ring allows it to be hooked onto the end of the jack handle, which can be used with a screwdriver to pull the cable out.
The force required to release the lock is approximately 200 N. When the parking brake cable ring is released, a spring in the parking brake control unit retracts the inner cable and the nipple is pulled away from the safety lever.
After the parking brake is released using the emergency release cable, the next time the parking brake switch is operated, the parking brake control unit automatically engages the locking device to reconnect the spline shaft to the force sensor. The parking brake control unit rotates the spline shaft so that it moves toward the force sensor. The spline shaft locking device then reconnects to the force sensor sleeve. The parking brake switch must be operated again to engage the parking brake.
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