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Checking glow plugs (engine code ATL) > < Checking glow plug system

A2

Checking glow plugs (engine code AMF, ANY, BHC)
Checking glow plugs (engine code AMF, ANY, BHC)
Checking the glow plugs of engine code “ATL” is described in the “Guided Fault Finding”.
  Note
On engine code “ATL” the glow plugs must not be checked for function or continuity with a power source which supplies constant voltage (e.g. 12 Volt battery). This can damage the glow plugs.
Special tools and workshop equipment required
t  Auxiliary measuring set -V.A.G 1594 C-
t  Voltage tester -V.A.G 1527 B-
   
t  U/J extension and socket, 10 mm -VAS 3220-
Test condition
l  Battery voltage at least 11.5 Volt
–  Switch off ignition.
–  Detach glow plug connectors from glow plugs.
  W00-0329
–  Connect diode test lamp wire using auxiliary clips from auxiliary measuring set -V.A.G 1594 C- to battery positive (+).
–  Place test probe of diode test lamp on each glow plug in turn.
If diode lights up: glow plug OK.
If diode does not light up:
–  Remove and install glow plugs with U/J extension and socket, 10 mm -VAS 3220-.
–  Place glow plug to be checked on fire-resistant surface.
–  Connect pin on glow plug to positive terminal of a charged 12V battery.
–  Connect thread of glow plug with negative terminal of battery.
  Note
t  To connect glow plug, use wires with a minimum cross section of 2.5 mm2.
t  The leads have to have secure connecting clips.
–  Observe glow plug.
–  Renew the glow plug if it does not glow or if only part of the heater element glows.
  N28-0185

Checking glow plugs (engine code ATL) > < Checking glow plug system