Audi S4 owners have reported 44 service brakes related problems since 1996. Table 1 shows the 13 most common service brakes problems. The number one most common problem is related to the vehicle's brake antilock control unit/module (9 problems). The second most common problem is related to the vehicle's brake abs warning light (7 problems). For details of each of the problem category, use the links in the table.
|Problem Category||Number of Problems|
|Brake Antilock Control Unit/module problems|
|Brake Abs Warning Light problems|
|Service Brakes problems|
|Brake Light On problems|
|Brake Disc problems|
|Brake Electric Antilock problems|
|Brakes Failed problems|
|Brake Disc Pads problems|
|Brake Differential Proportional Valve problems|
|Power Assist Brake Vacuum Hoses, Lines/piping, And Fittings problems|
|Brake Antilock Wheel Speed Sensor problems|
|Brake Disc Rotor problems|
|Power Assist Brake problems|
Driving on the on-ramp, about 40 mph. I was cut off fairly aggressively and had to apply the brakes hard. My brake light lit-up and beeped a few times. My car then began to spin out of control across the freeway (I-40, a major trucking artery). Read details...
I was going down the street and my abs light and brake light came on and beeped 3 times. I got over as soon as I could to make an appointment to go to Audi. I went up there and they said that they have never seen that code before so they just erased the code. Read details...
The vehicle�s pre sense auto-braking and braking alert jolt has been activating erroneously and have almost caused accidents at speed. The system cannot be permanently disabled, it deactivates upon ignition restart. Read details...
Brakes light came on and pads are worn and rotors are warped at only 16,000 miles. Had the Audi dealer in westlake village, California replaces both pads and rotors. Seven months and 8,000 miles later, while doing the maintenance oil change, a different Audi dealer in woodland hills, CA notified Read details...
Brakes continued to pulsate after last attempt to correct the problem. The dealer found that the rear rotors were out of spec and replaced them with part number 8d0-615-601-d. Read details...