Glow Plugs, Checking - II

Glow Plugs, Checking

Special tools, testers and auxiliary items required







- Jointed wrench 3220







- Adapter set V.A.G 1594 A
- Diode test lamp V.A.G 1527

Requirements
- Glow plug strip fuse in battery fuse holder OK.
- Battery voltage must be at least 11.5 V.
- All electrical consumers, e.g. lights and rear window defogger, must be switched off.

Work sequence
- Disconnect glow plug connector.







- Connect diode test lamp wire using clips from auxiliary cable set to battery positive (+).
- Place diode test lamp test probe on each glow plug one after another. Diode lights up: glow plug OK; diode does not light up: Replace glow plug.
- Remove and install glow plugs with jointed wrench 3220.
Tightening torque: 15 Nm