Why is the Audi multi-collision brake system not functioning?

2 Answers
LeSkylar
07/24/25 10:21pm
Audi multi-collision brake system malfunction may be caused by issues with the computer board data. It is recommended to visit an authorized 4S dealership for airbag computer board repair. Below is relevant information about airbag systems: 1. Development History: The airbag was first proposed by Hetrick in August 1953 and obtained the U.S. "Automobile Cushion Safety Device" patent. With the establishment of vehicle safety standards in various countries, the installation rate of airbags has been increasing. The installation rate of airbags in vehicles in Europe, the U.S., Japan, and other countries has reached nearly 100%. 2. Composition: Mainly consists of airbag sensors, anti-collision airbags, and electronic control devices. The driver-side anti-collision airbag is installed in the steering wheel; the passenger-side anti-collision airbag is generally installed on the dashboard. Airbag sensors are respectively installed on the left, right, and central partitions of the driver's compartment; the central airbag sensor and airbag system are installed together with the electronic control device. The airbag module mainly consists of the airbag, gas generator, and igniter.
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VonAustin
08/10/25 2:58pm
When my Audi's multi-collision brake system doesn't respond, I always suspect it's either not activated or malfunctioning. This system is designed to automatically decelerate after a collision to prevent secondary accidents, but it might fail due to dirty or aging sensors. Last time when I was driving in the rain, my car skidded and hit the curb, yet the system didn't react at all. I checked the manual which states it only triggers under specific speed and conditions, but routine checks show nothing wrong. Maybe it's a software bug requiring an update, or unstable battery voltage affecting the electronic module. As an average car owner, I think safety shouldn't be taken lightly - first ensure the system is enabled in the vehicle menu, then visit an authorized service center to scan for trouble codes. Regular cleaning of radar sensors is also important as dust accumulation can lead to misjudgment. When relying on it during high-speed driving, extra caution is needed - it's better to brake early yourself to avoid accidents. After all, this concerns driving safety, so don't delay the inspection for too long.
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