Audi Workshop Service and Repair Manuals

• ‒ Perform final control diagnosis after attaching brake pipes to hydraulic unit.

=> Running Gear, Self-diagnosis; Repair Group 01

Note:

Final control diagnosis can be used to establish whether pipe connections have been interchanged.

• Cap nut, 20 Nm

• TORX socket-head bolt, 4 Nm
• Brake pipe
• ◆ Hydraulic unit to rear left brake caliper
• TORX socket-head bolt, 4 Nm
• Brake pipe
• ◆ Hydraulic unit to rear right brake caliper
• ABS hydraulic unit -N55
• ◆ Fitting location: On left of engine compartment
• Brake pipe
• ◆ Brake master cylinder/primary piston circuit to hydraulic unit
• Brake pipe
• ◆ Hydraulic unit to front left brake caliper
• Brake pipe
• ◆ Hydraulic unit to front right brake caliper

• Brake pipe
• ◆ Brake master cylinder/secondary piston circuit to hydraulic unit
• ABS with EDL control unit -J104
• ◆ Fitting location: On left of engine compartment
• ◆ Control unit is bolted to hydraulic unit
• Cap nut, 20 Nm
• Bracket
• Bolt, 8 Nm