Moby 501

I had the same issue and I would not rush in to ripping anything apart, mine ended up just having to be reset and has not come on since, sometimes this can happen after battery is disconnected or something like that. I bought a hand held code reader on a uk website for

Hello all Some months ago after purchasing a Galaxy I came on this site to get some advice, I have to say the site is excellent and I think I have my problem almost fixed. My initial problem was no heat at all in the cabin, did the usual, new water pump, thermostat etc. Eventually my problem was diagnosed as a faulty flap under the dash (hint from this site) and I had it corrected. I now have the following situation: (first I have to say that my Aux heater is not working or never has, Im under the impression that there should be some heat regardless) It takes about 7 miles for the heater to start heating the cabin which I assume is correct with no Aux heater, then from time to time the air goes cold and then hot again, If I stop driving and rev the car I get instant heat, this leads me to believe I have a circulation problem of some kind, since I had the water pump replaced I am assuming that the newer pumps dont have the propeller falling off problem ! I also replaced the electric pump on top of the engine, could it be that now I have a dodgy matrix or air in the system or could it be that because the Aux system is not working the system is not balanced- this seems odd as the Aux does not always kick in anyway. Any help would be great as it has been in the past, by the way my temp gauge stays steady at 90, if anyone thinks its air can they reccomend an effective way to bleed the system. Are there any valves in the system that might prevent circulation other that the thermostat ? Thanks for the help Mike.

Hello 01 Galaxy, no heat front or rear. What i do know is as follows: Aux heater is not working -- but I still should have some heat from what I have read on this excellent site. After run pump is not working -- but again im not sure if this affects the water flow through the front matrix. Temp gauge is getting to mid point and holding fine, no overheating. Sometimes I get a blast of heat but it does not last. I could feel a hiss coming from the expansion tank when the engine is stopped so I changed the cap, still a slight hiss. Controls inside (CC model) seem to be fine I can feel change in the vents when moving between hot and cold. I guess my questions are as follows, I had the timing, water pump done in the summer, could it be that the front matrix is full of air ? If so how do I bleed it ? Does the run on pump affect the heating system in general or is it specifically used for pumping to the back Aux heater ? Could the fact that I have a slight pressure leak in the expansion tank cause enough pressure loss when the engine is running to affect the circulation thus causing reduced flow through the heater matrix ? Sorry for the long thread but Ive tried to give as much info as possible Thanks in advance.