Manual download

Service Brake system Edition 01.2014 Service Department. Technical Information Service List of Workshop Manual Repair Groups Repair Group 00 Technical data 45 Anti lock brake system 46 Brakes mechanism 47 Brakes hydraulics Technical information should always be available to the foremen and mechanics, because their careful and constant adherence to the instructions is essential to ensure vehicle road worthiness and safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a matter of course, be observed. . No reproduction without prior agreement from publisher. 2015 Audi AG, Ingolstadt A005A501720 Audi A4 2008 ➤ , Audi A5 Cabriolet 2009 ➤ , Audi A5 Coupé 2008 ➤ Brake system Edition 01.2014 Contents 00 Technical data 1 1 Identification 1 1.1 PR number and type of brake system 1 2 Brake test 4 2.1 General notes 4 2.2 Testing vehicles with front wheel drive 5 2.3 Testing vehicles with four wheel drive 5 2.4 Testing parking brake 5 2.5 Visible features of ceramic brake disc 6 2.6 Superficial cracks in cooling channel lands 8 2.7 Cracks in area of bolt connection on ceramic brake discs 8 2.8 Edge fractures 9 2.9 Chipping on ceramic brake discs 9 2.10 Cracks extending into cooling channels 10 2.11 Assessing degree of wear on ceramic brake discs 10 2.12 Wear assessment by checking thickness of brake disc 14 2.13 Wear assessment by checking thickness of brake disc 14 2.14 Wear assessment according to wear indicators 15 2.15 Weighing brake disc 16 45 Anti lock brake system 18 1 General notes 18 1.1 Notes for repair work on the ABS 18 1.2 Vehicle diagnostic, testing and information system 19 2 Overview of fitting locations 21 2.1 Overview of fitting locations ABS/ESP 21 3 Control unit and hydraulic unit 26 3.1 Exploded view control unit and hydraulic unit 26 3.2 Removing and installing ABS control unit J104 / ABS hydraulic unit N55 27 4 Sensor