volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Charge air system > < Removing and installing turbocharger
Checking vacuum unit for turbocharger
Checking vacuum unit for turbocharger
Special tools and workshop equipment required
   
t  Hand vacuum pump -VAS 6213-
Test prerequisite
t  Hose from turbocharger via charge pressure control solenoid valve -N75- to vacuum unit must have through-flow (not blocked).
t  Charge pressure control solenoid valve -N75- must be OK.
Procedure
–  Remove engine cover/air filter → Chapter.
  W00-10259
–  Connect hand vacuum pump -VAS 6213- to vacuum unit -arrow-.
  N21-10114
–  Move slide ring -1- on hand vacuum pump -VAS 6213- to position -B- for „pressure“.
  Caution
The pressure must not exceed 750 mbar! If the pressure is exceeded, the vacuum unit can be damaged.
–  Operate hand vacuum pump -VAS 6213- repeatedly, observing linkage.
The linkage -A- should start to move at a pressure of approx. 300 mbar and be at its limit stop at a pressure of approx. 700 mbar.
  N24-10282
The stroke of the rod is approx. 10 mm.
  Note
If no pressure can be built-up using the hand vacuum pump -VAS 6213- or the pressure drops immediately again, check hand vacuum pump -VAS 6213- and connecting hoses for leaks. If no leak is found: renew turbocharger.
  N21-10115

Charge air system > < Removing and installing turbocharger