Scott Chapman

A friend of mine with a new Volvo had "collision avoidance" kick in this weekend when a car was passing him in the blind spot and he was drifting. He got the rumble-strip feedback and then the wheel jerked him back into the lane. I knew my car came with some fancy smarts, so I thought I would read the manual and see what I had. I ended up being super confused...

I have a 2018 S5 SB Prestige with Driver Assistance package (US version) so I think I get the full array pre-sense stuff. Is there anything place that nicely summarized what my car can do on my behalf? Most of what I have read seems to indicate that it will protect in a pending crash (windows, seatbelts, etc). And it seems like some if it only works at lower (city) speeds. But I am really curious about actual avoidance, especially on the highway at highway speeds.

Slides

In my real-world experience, it's not that great.

duhg

I had a pre-sense warning flash on my dash yesterday, but felt nothing happen in the steering or braking. I have no idea what triggered it.

Wiz33

Audi said reduce impact speed by up to 20 miles per hour but I have no idea about blind spot avoidance other then the flashing light on the inside mirror housing.

Scott Chapman

Yea, I've experienced that. And one time I was backing into my garage and I got a hard brake (though a collision was not imminent).

I've read about the various levels/version of pre-sense (present front/back, city, basic, plus, etc) but honestly it is pretty confusing and I am not super sure what I have because the manual is filled with "within the limits of the system", "available in certain countries", etc.)

I did read about "evasive steering support" which says:
Which of course makes it sound like it helps you evade something after you've already avoided it...

mplsbrian

It means if you are starting to steer around an obstacle that the computer detects will cause a collision, it will jump in and grab the wheel to help you.
It intends to convert this situation: "I swerved left, but my right headlight clipped his left taillight"
...into this situation: "I swerved left and completely dodged him, thanks to a little help from Audi's cameras and electronic hand of god."

wam22

Here you go: https://www.audi-technology-portal.d...-sense-city-en

To summarize though the system work up to 50 mph and slows the car down by 25 mph. It can detect a car stopped in front of you or a pedestrian walking in front of your car.

Waggin

Just 20 minutes ago, at around 30 MPH, I was messing with my seat lumbar support control, and got a hard brake event. There was a pickup truck braking to turn off maybe 80 feet in front of me. I also had a ! symbol in a red triangle on the dash display.
I'm guessing it saw the truck's brake lights, decreasing distance, and no reaction from me, and gave me a wake-up brake stab.. It did not do full-on braking, probably because I got off the gas immediately afterward.

SYMAWD

HudsonS5

That rumble strip feel is part of the lane keeping assistant on the Audi. It reacts that way when leaving the lane without signaling, even if a car isn't in your blindspot.