Adaptive Cruise Control

Adaptive Cruise Control

Distance regulation sensor and distance regulation control module (J428) are installed in one housing. If sensor/control module is faulty, entire unit must be replaced.

In the following description, the sensor/control module unit is identified as the "sensor".

The sensor is located behind the front bumper right air intake grille.

Malfunctions can occur due to contamination on the sensor. Remove the air intake grille in front of the sensor according to the repair manual and clean the sensor.

A new sensor generation with a revised bracket is being installed in production as a running change from MY 12; allocation, refer to the Parts Catalog.

Before performing Adaptive Cruise Control (ACC) adjustment, Diagnostic Trouble Code (DTC) memory must be interrogated and malfunctions corrected.

ACC control module "measured value block 2" shows whether sensor is only slightly misaligned.

The ACC adjustment may only be set using a VW/Audi-approved wheel alignment tester and adjustment device!

A correct adjustment is required for perfect ACC function.

• A new adjustment is necessary if:

• Rear axle toe is adjusted.

• The complete adaptive cruise control sensor (G550) must be replaced.

• Alignment work performed on the right longitudinal member.

• There is damage on the front end.

• The adjustment angle is greater than -0.8° to +0.8°.