Iv got a similar problem on my g60, after finding nearly every coolant pipe to and from heater matrix had split, the neck of the heater matrix broke off after being a bit vigerous trying to remove rubber pipe. Dash out, replaced matrix, boxed it all back up, connected pipes to heater matrix, ran up as normal, nothing. Coolant was red hot before and between valves, but not after. The techs at work agreed with me that it must have an air lock, que hours of me running the car up trying to force air out. A week and a half without a heater in this weather is annoying. :censored:
Took car into work this morning, had the car red hot, fan cutting in etc, undid the jubilee clip that holde the return pipe onto heater matrix, pulled it off slightly so water was being forced out, after 5mins of this the water being forced out went from stone cold to red hot, slid pipe back on, did up. Thaught to myself, job done, hot water going into heater matrix, hot water coming out of matrix, surely theres gotta be heat. Alas nothing. :brickwall:
My only conclusion is that when iv had the dash out to change matrix, one of the heater controll cables has become jammed/trapped and is unable to open the vent to allow the heat from the matrix into the car? The car isnt over heating, the coolant temp is as it was before i started faffing with it, fan is cutting in ok.
Anyone have any other ideas?
Sorry to hijack your post by the way, but seemed pointless to start my own when theyre similar issues. :wave:
Cheers for any thaughts, ideas, remedies (iv allready thaught on the petrol and lighter idea) in advance,
Ray
