One for any current vauxhall techn.I shortly have to change a fuel filter on a 2.0 diesel Zafira,the TIS states it has to be connected to a bleed pump, vauxhall part KM-948.Do you really have to use this or can you prime the new filter with diesel from a syringe?Don't want to end up with a won't go,airlocked motor on the back yard!!