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Checking glow plugs > < Exhaust gas recirculation system

Leon Mk1

Checking glow plug system
Checking glow plug system
Special tools and workshop equipment required
t  Hand multimeter -V.A.G 1526-
t  Adapter set -V.A.G 1594-
Test prerequisites
l  Battery voltage at least 11.5 V
l  Ignition switched off
l  Diesel direct injection system control unit -J248- OK
l  Glow plug strip fuse -S163- OK
Test sequence
   
–  Pull connector off coolant temperature sender -1- ab.
  Note!
Pulling the connector off sender, simulates engine condition “cold” and when switching the ignition on the relevant glow period is carried out.
–  Pull glow plug connector off glow plug.
–  Connect multimeter to measure voltage between a glow plug connector and vehicle earth.
–  Switch on ignition for approx. 20 seconds approx. battery voltage must be displayed.
–  If no voltage is present → Current flow diagrams, Electrical fault finding and Fitting locations
  N23-0079

Checking glow plugs > < Exhaust gas recirculation system