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Hydraulic unit, brake servo/brake master cylinder: Assembly overview > < Control unit and hydraulic unit: removing
Control unit and hydraulic unit: fitting
Control unit and hydraulic unit: fitting
  Note
t  Only remove the plugs from the new hydraulic unit once the corresponding brake pipe is fitted.
t  If the plugs are removed from the hydraulic unit beforehand, brake fluid could flow out, for which the filling and bleeding of the system could not be guaranteed.
   
–  Secure ABS unit to bracket.
  Note
Do not completely tighten the fastening nuts of the hydraulic to the body. This will make it easier to attach the individual brake lines to the hydraulic unit.
–  Bolt on the hydraulic unit after having screwed on the brake pipes.
–  The other installation operations are carried out in reverse order to the disassembly.
–  Remove the block for the brake pedal -VAG 1869/2-.
–  Bleed brake system → Chapter.
–  Code the radio.
–  Code the ABS control unit -J104 -.
–  Connect the vehicle diagnostic, measuring and information system -VAS 505X- and select the function → Chapter.
  N45-10071
Tightening torques: 
Hexagonal bolt to secure the hydraulic unit to the support8 Nm
Nut with bearing cap to the bodywork20 Nm
Brake pipes to ABS group: 
M 10 x 1 thread14 Nm
M 12 x 1 thread14 Nm

   

Hydraulic unit, brake servo/brake master cylinder: Assembly overview > < Control unit and hydraulic unit: removing