Coffee&Doughnut 0 Report post Posted December 4, 2005 When I switch on the Air con in my E30 320i the idle surges, just keeps goin up and up 2000-3000, this is in neutral, when in gear on the road its a bit hard to tell. Does anybody know what the cause of this might be? It seems to have gotten worse lately. Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted December 4, 2005 Sorry forgot to add that I think this is only ocurring when the motor is really warmed up like over half an hour on the freeway or so. So it could be temp sender/ thermoswitch maybe? Quote Share this post Link to post Share on other sites