Glow Plug: Testing and Inspection

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
- VAG 1527B Voltage tester
- VW 1594 Adaptor kit







- 3220 Wrench







Checking requirements

- Battery voltage 11.5 Volts minimum
- Ignition switched OFF

Test sequence

- Disconnect glow plug harness connector from glow plug.
- Connect diode test lamp wire to battery Plus using jumper wires from VW 1594 Adaptor kit







- Touch tester probe on each glow plug one after the other.
- Diode lights up: glow plug OK
- Diode does not light up: replace glow plug
- Remove and install glow plugs using 3220 flexible wrench
- Tightening torque: 15 Nm (11 ft lb)
- Display Readiness code. Testing and Inspection

If DTC memory has been erased
- Create Readiness code. Testing and Inspection