Volkswagen Workshop Service and Repair Manuals

Special tools, testers and auxiliary items

• ◆ Multimeter V.A.G 1715 or V.A.G 1315 A

Test sequence

• ‒ → Pull connector -1- off engine temperature sender -2-.

Note:

Pulling the connector off sender, simulates engine condition "cold" and when switching the ignition on the relevant glow period is carried out.

• ‒ Place glow plug feed wires in multimeter current clamp.
• ‒ Switch on ignition to start pre-glow.
• ‒ Start the engine and run at idling speed.
• ‒ Read current consumption during extended glow period (approx. 180 sec.) with engine running.
  The current consumption of the glow plugs during the extended glow period is approx. 8 Amp. per glow plug. With a glow plug current consumption of:

Note:

Erase fault memory after completing checks

. (The disconnected engine temperature sender connector is registered as a fault by the self-diagnosis)