had same problem with mine, bought hot fix off EBAY for around 30 quid fitted that and had no more probs. Only thing is now i think my fuel pump is on way out....... grrrrrr
kevin from bridgend, August 2010
my 2.5 had same problem a mod was done making heaters come on every time i started the car i think they fitted an extra relay. now no further problems in last 20.000miles