Where is the Octavia reversing radar buzzer located?
3 Answers
The reversing buzzer is located on the left B-pillar, which means it's near the seat belt area. Working principle of the reversing buzzer: The reversing buzzer is an intermittent sound device. Its sound-producing component consists of a low-power electric horn, while the control circuit is a switching circuit composed of an astable circuit and an inverter. Function of the reversing buzzer: When a vehicle is reversing, warning devices such as reversing lights, reversing buzzers or voice reversing alarms are often installed at the rear to alert pedestrians and other drivers. These devices are automatically controlled by the reversing switch mounted on the transmission cover.
When I last repaired my old Octavia, I specifically studied this. The reverse radar buzzer is actually quite well hidden. Open the trunk, and it's located behind the left interior trim panel, near the taillight. You'll need to lift the trunk mat first, then pry open a few clips of the black interior trim panel to reveal a small black rectangular box, about the size of a cigarette pack, connected to a bundle of wires—that's the buzzer itself. In some newer models, it might be integrated into the radar module, still located on either side of the trunk. To test it, put the car in reverse, have someone block the radar sensors outside, and you can feel the vibrating sound source by touching the interior trim panel. Replacing it yourself isn't too difficult, just be careful with the clips when removing and reinstalling the trim panel.
I've been driving the Octavia for three years now, and when the parking sensors beep, the sound seems to come from the left side of the trunk. The exact location can only be seen by removing the left interior trim panel in the trunk, in the area above the spare tire well. The buzzer is usually connected to the parking sensor control box and secured with two screws. Last time my friend's buzzer stopped working, the repair shop just lifted the trim panel and fixed it in ten minutes. If the sound suddenly stops, don't rush to dismantle it—it might just be that the sensor is covered in mud. A quick wipe with a towel should do the trick. However, be careful in winter as the trim panels become brittle and the clips can break easily.
