Brake system

Kapitelübersicht

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety measures when working on vehicles with start/stop system
  1
• 1.3 Safety precautions when working on high-voltage system
  1
• 1.4 Safety precautions when working in vicinity of high-voltage components
  2
• 2 Identification
  3
• 2.1 Allocation of PR number - brakes
  3
• 3 Technical data
  5
• 3.1 Technical data for brakes
  5
• 4 Brake test
  9
• 4.1 General information
  9
• 4.2 Checking vehicles with front-wheel drive
  9
• 4.3 Checking vehicles with all-wheel drive
  9
• 4.4 Checking parking brake
  10
• Anti-lock brake system
  12
• 1 General information
  12
• 1.1 Repair instructions for repair work on ABS
  12
• 2 Overview of fitting locations
  15
• 2.1 Overview of fitting locations – ABS/ESP
  15
• 3 Control unit and hydraulic unit
  18
• 3.1 Assembly overview - control unit and hydraulic unit
  18
• 3.2 Removing and installing ABS control unit J104 and ABS hydraulic unit N55
  22
• 3.3 Separating control unit from hydraulic unit
  37
• 3.4 Fitting control unit to hydraulic unit
  38
• 3.5 Connecting brake lines to hydraulic unit
  40
• 4 Sensors
  43
• 4.1 Assembly overview - speed sensor on front axle
  43
• 4.2 Assembly overview – speed sensors on rear axle
  44
• 4.3 Removing and installing ESP sensor unit G419
  46
• 4.4 Removing and installing speed sensors on front axle G45/G47
  46
• 4.5 Removing and installing speed sensors on rear axle G44/G46
  47
• 4.6 Checking ABS sensor ring
  50
• Brakes - mechanism
  52
• 1 Front brake
  52
• 1.1 Assembly overview - front brake
  52
• 1.2 Removing and installing brake pads
  54
• 1.3 Removing and installing brake caliper
  60
• 2 Rear brake
  63
• 2.1 Assembly overview - rear brakes
  63
• 2.2 Removing and installing brake pads
  66
• 2.3 Removing and installing brake caliper
  71
• 3 Parking brake
  77
• 3.1 Overview of fitting locations - parking brake
  77
• 3.2 Removing and installing control unit for electromechanical parking brake J540
  79
• 3.3 Removing and installing parking brake motor V282/V283
  79
• 4 Brake pedal
  82
• 4.1 Assembly overview - brake pedal
  82
• 4.2 Removing and installing mounting bracket
  86
• 4.3 Separating brake pedal from brake servo
  88
• 4.4 Connecting brake pedal to brake servo
  89
• 4.5 Removing and installing brake pedal
  90
• Brakes - hydraulics
  94
• 1 Front brake caliper
  94
• 1.1 Assembly overview – front brake caliper
  94
• 1.2 Removing and installing brake caliper piston
  96
• 2 Rear brake caliper
  99
• 2.1 Assembly overview – rear brake caliper
  99
• 2.2 Removing and installing protective cap
  99
• 3 Brake servo and brake master cylinder
  104
• 3.1 Assembly overview - brake servo/brake master cylinder
  104
• 3.2 Removing and installing brake servo
  108
• 3.3 Removing and installing brake master cylinder
  116
• 3.4 Removing and installing brake fluid level warning contact F34
  130
• 4 Brake lines
  131
• 4.1 Repairing brake lines
  131
• 5 Hydraulic system
  136
• 5.1 General notes on brake fluid
  136
• 5.2 Bleeding hydraulic system following standard procedure
  136
• 5.3 Subsequent bleeding of hydraulic system
  138
• 5.4 Testing for leaks
  138