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Removing and installing parts of ESP system > < Technical data, brakes

Leon Mk1

Removing
Removing
–  Obtain radio code on vehicles with coded radio.
–  Disconnect battery.
–  Remove coolant expansion tank and swing to side.
–  Draw off as much brake fluid as possible from brake fluid reservoir using a suction bottle.
–  Operate brake pedal and block or allow a second mechanic to operate the pedal.
–  Fit bleeder hose and bleeder bottle to the front left brake caliper bleeder screw and open bleeder screw.
–  Close front left bleeder screw.
   
–  Release control unit connector -arrow 1- and pull off -arrow 2-.
–  Place sufficient lint-free cloths under the control unit and hydraulic unit.
Ensure no brake fluid gets onto contacts.
–  Disconnect brake pipes on brake master cylinder and hydraulic unit and seal brake pipes and threaded holes with plugs from repair kit -1H0 698 311 A-.
–  Remove torx socket head bolt T25 from hydraulic unit bracket.
–  Remove hydraulic unit with control unit.
Removing control unit from hydraulic unit
–  Pull connector for hydraulic pump motor off control unit.
  N45-0069
–  Remove bolts from control unit and pull control unit off.
  N01-0019
When pulling off control unit, ensure that the hydraulic unit valve dome is not canted against the control unit solenoid valves.
Cover control unit magnetic coils with a lint-free cloth.
After separating control unit and hydraulic unit use transportation protection for valve dome.
  N45-0050

Removing and installing parts of ESP system > < Technical data, brakes