volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

ABOUT US
Exhaust turbocharger, G-charger > < Schematic overview of activated charcoal filter system

Golf Mk5

Checking vacuum supply of fuel system diagnostic pumpV144
Checking vacuum supply of fuel system diagnostic pump -V144-
Special tools and workshop equipment required
   
t  Turbocharger tester -V.A.G 1397A-
t  T piece -251 201 346-
t  Hose Ø 6mm
  Note
t  Fitting location of fuel system diagnostic pump -V144-.
t  Golf: In rear right wheel housing below wheel housing liner.
t  Eos: Behind rear right wheel.
Golf:
–  Remove rear right wheel and wheel housing liner.
  W00-0565
–  Disconnect vacuum line -1- from fuel system diagnostic pump -V144-.
–  Connect turbocharger tester -V.A.G 1397A- with T-piece and hose Ø 6mm, between vacuum line -1- and fuel system diagnostic pump -V144--2-.
Eos:
  N20-10389
–  Disconnect vacuum line -1- from fuel system diagnostic pump -V144-.
–  Connect turbocharger tester -V.A.G 1397A- with T-piece and hose Ø 6mm, between vacuum line -1- and fuel system diagnostic pump -V144--2-.
All vehicles:
–  Switch on measuring range I (absolute pressure measurement).
–  Connect vehicle diagnosis tester and start engine.
–  On vehicle diagnostic tester, select operating mode Guided functions.
–  Select guided function „Checking tank ventilation system for leaks“.
–  Initiate test.
–  Observe display on turbocharger tester -V.A.G 1397A- while test is running.
l  Pressure must pulsate and must not exceed 0.7 bar (absolute pressure) during test.
–  If pressure exceeds 0.7 bar during test, vacuum supply is too low. Check vacuum line to intake manifold for possible kinks or blockages.
  N20-10388

Exhaust turbocharger, G-charger > < Schematic overview of activated charcoal filter system