OM603 wvo in Estonia

[KarlGustav9]

Hi,

I own a S124 OM603 and drive it on wvo here in Estonia. I've been driving it on wvo for 2 years now, i've done about 50 000km, the first year i had no heaters for the fuel, i had a hard time starting the car and the filter would get clogged up often, this year i added a extra filter in the engine bay and wrapped a copper tube around it which is heated by coolant, also got a keenovo heating pad and belt for the original filter and for the high pressure fuel lines, also bought a new starter and a battery. The car starts fast like it's on pure diesel and drives well. Yesterday i sat in my car and it wouldn't start. i found out that one of my fuel lines is clogged, probably some water got in and froze over night when i got it unclogged i also noticed that my fuel system was full of air, i bled all the ait out with a hand pump and the car still wouldn't start, i checked my glow plugs and noticed that one of the plugs was not working, could this be enough for the car not to start, i didn't have time to change the plug yesterday, i will try and do it today, another thing that i was wondering, is there any way to bleed the fuelpump with the handpump or can i bleed it just by cranking the engine ? I add about a quarter tank of diesel to my wvo in the winter and also mix the wvo with about 10% petrol.