525 TDS Glowplug Relay? Starting problem.

[Tony777]

Hi Everybody, I have an electrical problem with my 525 TDS Touring. When I try to start it, the glowplug light comes on for about 10 seconds and then goes out as it should. The car will not start. The next thing I tried was new glowplugs. Turn the key, wait for the light to go off and guess what. IT STILL WON'T START!
I tested the electric feed to the glowplugs and it's dead. I have checked the fuses ( unless there's a hidden one ).
Has anybody got any ideas? Where is the glow plug controller? Also, when I turn the ignition on, the windscreen wipers operate once ( delay wipe ) . I am getting a bit fed up with this now.
Thanks for reading this, Tony