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Inspecting a tandem pump > < Removing

Octavia Mk1

Install
Install
Installation is performed in the reverse order. Pay attention to the following points:
  Note
t  Ensure the tandem pump coupling is correctly inserted into the camshaft.
t  Always replace the tandem pump seals.
–  Connect return-flow hose -3- (marked in blue) to the return-flow coupling of the tandem pump.
–  Install tandem pump and tighten the top fixing screws to 20 Nm.
–  Tighten the bottom fixing screws to 10 Nm.
–  Connect the feed hose -2- (marked in white) to the feed connection and the vacuum line -1- of the brake servo unit to the tandem pump -4-.
–  Connect the central plug connection for the unit injector.
–  Install the charge air pipe.
   
–  Connect the hand vacuum pump with the ventilation reservoir (e.g. - VAS 6213-) to the return-flow hose -2- (blue marking) of the fuel filter.
–  Generate vacuum with hand vacuum pump until there is fuel from the return-flow pipe. Ensure that no fuel is drawn into the hand vacuum pump.
–  Connect return-flow hose -2- (marked in blue) to fuel filter.
–  Interrogate the fault memory → Vehicle diagnosis, testing and information system VAS 5051.
  Note
Faults are stored as a result of separating the central plug connection for the unit injector. Interrogate the fault memory and delete it as required.
  S20-0283

Inspecting a tandem pump > < Removing