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Checking fuel tank breather: engine code AWC > < Checking fuel tank breather

Leon Mk2

Checking fuel tank breather: engine code AJH
Checking fuel tank breather: engine code AJH
Special tools and workshop equipment required
   
t  Vacuum tester -V.A.G 1368-
  W00-0567
t  Hand vacuum pump -V.A.G 1390-
Test procedure
  W00-0515
–  Pull breather line -5- from activated charcoal filter -1- off at throttle valve control module -3-.
–  Connect hand vacuum pump -V.A.G 1390- to line -5-.
–  Pull breather line -4- from fuel tank off activated charcoal filter and connect to “connection A” of vacuum tester -V.A.G 1368-.
–  Connect vacuum tester -V.A.G 1368-“connection B” to breather line -2- to activated charcoal filter.
–  Set vacuum tester to position “B”.
–  Initiate final control diagnosis and activate activated charcoal filter system solenoid valve 1 -N80-, → Rep. Gr.01.
–  Operate hand vacuum pump -V.A.G 1390- several times. Vacuum must not build up.
If vacuum builds up:
–  Check breather connection -6- on activated charcoal filter -1- for soiling, clean if necessary.
If vacuum does not build up:
  N20-0253
–  Connect hand vacuum pump -V.A.G 1390- to vacuum tester -V.A.G 1368-“connection B”.
–  Set vacuum tester to -A/B- position.
–  Operate hand vacuum pump -V.A.G 1390- several times. A vacuum must build up.
If vacuum does not build up:
–  Check pressure retention valve → Fig..
–  Check line -1- from fuel tank for leaks.
  N20-0254

Checking fuel tank breather: engine code AWC > < Checking fuel tank breather