Test condition

● Battery voltage at least 11.5 V
‒ Switch off ignition.
‒ Unplug connectors from glow plugs.
‒ Use test terminals from adapter set V.A.G 1594 to connect diode test lamp lead to battery positive .
‒ Consecutively apply test prod of diode test lamp to each glow plug.
Diode lights: Glow plug OK

Diode does not light: Replace glow plug

‒ Use jointed spanner 3220 to remove and install glow plugs.
Tightening torque: 15 Nm


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