A6 Quattro Sedan V8-4.2L (BVJ) (2007)
/Page-1691001.png)
Alignment: Procedures
General Notes For ACC
General notes for ACC
Distance regulation sensor and Distance Regulation Control Module J428 are installed in one housing. If there is a malfunction at sensor/control
module, the complete unit must be replaced.
In the continuing description, the sensor/control module unit is called "sensor".
Radar cover of sensor is located behind front bumper cover and is made of radar permeable material. All modifications such as subsequent paint work,
applied stickers, etc. may cause malfunctions.
Malfunctions may also occur if sensor is soiled. For this, remove decorative grille or radiator grille in front of sensor and clean interior of decorative
grille or radiator grille and sensor.
Before adjusting the ACC system, check DTC memory and perform corrective actions if necessary.
It can be determined whether sensor is out of adjustment in "measuring value block 2" of ACC control module.
If sensor is out of adjustment by -0.8° to +0.8°, it does not need to be re-adjusted.
The ACC adjustment must only be performed using axle alignment equipment and adjusting device approved by VW/Audi!
Correct adjustment is a requirement for perfect ACC function.
Note:
^
A zero adjustment is necessary if:
^
Rear axle toe is adjusted.
^
Complete radar sensor is replaced.
^
Bumper cross member is loosened or out of adjustment.
^
There is damage on the front end.
^
Sensor is out of adjustment in angles greater than -0.8° to +0.8°.
