Adaptive Cruise Control too sensitive?

[sbaffi]

Hi all,

Just a fast question for the forum friends who have ACC as an optional. After almost 10k miles I can tell my ACC sometimes starts tracking cars that are on the right of the car and slightly forward. Same things could happen for road bumps and it does not matter the Audi Drive selection the car is on. Before I take the car to audi for recalibration, has anybody noticed the same behavior?

[M1tchy]

Mine tracks cars on the right and infront, almost as if it knows I should undertake and doesn't without taking over and using the pedals.

Never slowed for a speed bump though.


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[sbaffi]

Hi M1tchy, the ACC works flawlessy most of the times, and indeed it knows when I am undertaking (on both sides) and accelerate accordingly. Sometimes it just starts slowing down when I have a car close to mine, right and forward as I described before. The bump part is not expressed correctly - my bad - I meant when you drive downhill and the road starts going back upwards...It's like the ACC thinks the road is an object suddendly appearing to the front.

[M1tchy]

Ah right, now it makes sense but still shouldn't behave like that as the road is a stationary object and the ACC system doesn't react to stationary objects (unless they were previously moving I.e a car that comes to a standstill). It knows if it's moving or not due to the Doppler shift.

It sounds like you have a fault if your car is reacting in the way you describe. Have you had a VCDS scan? Or maybe a bump to the front of the car that may have knocked the sensors out of alignment?


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