My car still overheats as well. I'm trying to chase it down. It could either be a leak or maybe a bad power cable that has built up too much resistance over the many heat cycles. Those are the two going theories for me.
'06 Arctic Metallic 325i | Sport Package | 6MT | Dinan Stage III suspension | Dinan exhaust | 330i manifold swap! Click here!
| Active Autowerke tune | 135i Brake Calipers | Deiselboost caliper brackets | E46 M3 front rotors