VW Golf manuals

Volkswagen Golf Service & Repair Manual: Removing and installing high-pressure pump

Removing
Engine cold
The fuel system is under high pressure.Risk of injury due to fuel which may spurt out.Release high pressure.
→ Chapter
Risk of functional impairment due to soiling → Chapter.
–  Remove high-pressure pipe → Chapter.
   
–  Disconnect electrical connector -1-.
  Note
Place a cloth underneath to catch escaping fuel.
–  Release hose clip -2- and detach fuel supply hose.
–  Unscrew bolts -3- and detach high-pressure pump with roller tappet.
Installing
–  Check roller tappet for damage and renew if necessary.
–  Moisten roller tappet -1- with clean engine oil.
 

Removing and installing high-pressure pump

–  Insert oiled roller tappet -1- into camshaft housing.
  Note
Renew O-ring.
–  Turn crankshaft in direction of engine rotation until roller tappet is at bottom dead centre.
–  Insert new, lubricated O-ring -2- in groove of high-pressure pump -3-.
–  Tighten bolts hand tight.
–  Tighten bolts in diagonal sequence to specified torque → Fig..
–  Check fuel system for leaks.
 

Removing and installing high-pressure pump

Assembly overview - high-pressure pump
1 -  Roller tappet When installing lubricate lightly with clean engine oil 2 -  O-ring Renew When ...

Removing and installing high-pressure pipe
Special tools and workshop equipment required     Torque wrench -V.A.G 1331-   ...

Other materials:

Disconnecting and connecting battery, vehicles with high-voltage system
  Caution Observe the following instructions and precautions on safety when working on pyrotechnic components: Contrary to the following description, the battery must be disconnected ...

Engine preheating
Fig. 131 The front left of the bumper: connection for engine preheating ② First read and observe the introductory information and safety warnings In engine preheating mode, the engine coolant is heated slowly using a heating element while the vehicle is stationary. To do so, the cables ...

Warning and indicator lamps
First read and observe the introductory information and safety warnings  Lit up Possible cause Solution Electromechanical steering not functioning. The steering should be checked by a qualified workshop as soon as possible. ...

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