One problem related to adaptive cruise control has been reported for the 2011 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Audi A4 based on all problems reported for the 2011 A4.
On my car when I'm driving anywhere after I put my cruise control on if I press up or down on the cruise control to change the speed the car will either brake or speed up and it won't stop until I hit my brakes hard and turn the cruise control completely off which is also an issue because my brakes are going out extremely fast like I need a new pair every 2-3 months and the car also burns through oil so quickly that I need to add more within 2-3 days after an oil change with no leaks and it's burning more oil than gas which is clogging up my catalytic converter. . . . . . . . And causing my emissions to be bad. . . . .