Audi Q7: Antilock Brake System

 Rear Lid Lower Trim Panel, Removing and Installing

Special tools and workshop equipment required Pry Lever -80-200- Omega Clip Tool -T40280- Removing - Remove the rear lid closing button. Refer to → Electrical Equipment; Rep. Gr.96; Controls; Rear Lid Lock Button in Luggage Compartment E406, Removing and Installing. -&nbs

 Knock Sensor 1 - G61-, Checking

General Description The Knock Sensor 1 -G61- is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The Engine Control Module -J623- uses this signal to determine the presence of engine knock and to retard spark timing, if necessary. Special tools and wor