2001 TD4.2t I have done the test light test and all Glow Plugs the test light lights up. I have now removed them all to test the continuity.
The result is, from firewall 15.2Ω - 30.2Ω - 02.5Ω - 01.1Ω - 02.4Ω - 00.0Ω to front.
Dose this show there all ok or is there a problem as there is a large difference between them, but the test light shows all ok.