I will be interested to hear the answer to this.
My 99 D2 TD5 is doing the same,and has done for 12 months or so.I have changed the injector washers,1 maybe 2 had a slight evidence of leakage,didnt fix the issue.
Its not glow plugs,they have been swaped for newbies in the recent past.
I too have to prime mine when its sat for longer than 24 hours.Overnite is normally OK.
Fuel pump on its last legs?????
I have cleaned the in line strainer next to the fuel filter.Will see if a new fuel filter is the answer as Im part way thru a service,the Defender doesnt do it.
Andrew

