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General Topics / please help. footwell clicking sound

« on: September 05, 2009, 07:58:55 AM »

Hi. I am new to this site, but have had my e30 318is for 5 years. Please could someone tell me if they have experienced a loud clicking sound from the footwell. I think i have isolated the problem, but dont know if it is normal. It apears to be coming from the water valve attatched to the heater core/matrix. The clicking gets faster as I accelerate but doesnt start clicking till I reach about 3000rpm. If I am booting it and reving it hard the air in the car blows cold, and only starts blowing hot again if I take it out of gear and let it freewheel in neutral. Any sugestions would be much appreciated. Thanx.