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Glow plugs: verification > < Exhaust gas recirculation valve: check

Leon Mk2

Checking glow plug system
Checking glow plug system
Special tools and workshop equipment required
   
t  Hand-held multimeter -V.A.G 1526 A-
  W00-0431
t  Auxiliary cable kit -V.A.G 1594 C-
Test prerequisites
l  Battery voltage at least 11.5 V
l  Ignition is turned off
l  Control unit for the direct diesel injection system -J248-, correct
l  Fuse for glow plugs, correct
Checking sequence
–  Extract the connector from the coolant temperature sender -G62-.
  Note
By removing this connector, a „cold engine“ is simulated. When the ignition is turned on, a corresponding heating cycle will be completed.
–  Unplug connectors from glow plugs.
–  Fit the multimeter in voltage measurement mode between the glow plug connector and the vehicle earth.
–  Turn on the ignition. The approximate battery voltage must be displayed for about 20 seconds.
–  If no voltage is present: → Current flow diagrams, Electrical fault finding and Fitting locations
  W00-0477

Glow plugs: verification > < Exhaust gas recirculation valve: check