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SEAT Workshop Service and Repair Manuals

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Unbolting control unit from hydraulic unit > < Removing and installing control unit and hydraulic unit

Leon Mk2

Removing
Removing
–  Note or obtain radio code on vehicles with coded radio.
–  Disconnect battery → Electrical system; Rep. Gr.27.
–  Remove battery.
   
–  Remove trim/air duct -1--arrows-.
–  Remove trim -2- for battery.
  N40-0109
–  Remove additional relay carrier on left of engine compartment, if fitted, (arrows -1- and -2-).
–  Unbolt battery trim with cooling system expansion tank (arrows -3-) and lay to side without opening cooling system.
–  Connect bleed bottle hose to front left brake caliper bleed valve and open bleed valve.
–  Fit brake pedal depressor -V.A.G 1869/2-.
–  Depress brake pedal with brake pedal depressor.
–  Close front left bleed valve.
  N30-0108
–  Pull connector from control unit -arrows-.
–  Place sufficient lint-free cloths under the control unit and hydraulic unit.
Ensure no brake fluid gets onto contacts.
–  Unbolt brake pipes from brake master cylinder and hydraulic unit, and seal brake pipes and threaded holes with plugs from repair kit Part No. 1H0 698 311 A.
–  Remove bracket for hydraulic unit on battery box.
–  Remove hydraulic unit upwards.
  N01-0024

Unbolting control unit from hydraulic unit > < Removing and installing control unit and hydraulic unit