Chilly climate control

Ex Bmw owner · Mar 10th, 2007, 17:43

Hi,my climate control on my 98 S40 has decided it will only blow cold for some reason.If you alter it to warm the inside up the blower kicks in (so the sensor must b working) but only cool air is blown out.The problem seemed to start in the bad floods the other day although i've not been through any deep water with it.My first thought was coolant level but the engine is running as it should at around 90 degrees.Any ideas????

4 forty · Mar 10th, 2007, 19:05

when you switch the control from cold to hot, can you hear a clicking sound?

paul

Ex Bmw owner · Mar 10th, 2007, 19:22

No,don't think it's anything to do with the recirculation switch as it's normaly those that click isn't it?

morphinemitt · Mar 10th, 2007, 19:35

I had this problem years ago on another vehicle and it turned out to be an air-lock in the heater matrix. Could be the same on yours, or maybe the flap that directs the air over the heater matrix isn't functioning somehow. It's a pain in the arse nowadays with these problems, at least years ago you could actually hear the flap moving when you switched from hot to cold or vice-versa.
That's all I can think of sorry.
Hope this helps.

morphinemitt · Mar 10th, 2007, 20:02

Me again,
Try checking the fuse/motor which controls the opening and closing of the aforementioned flap. I have a list of what the fault codes mean, but that's useless without you having a fault code reader I guess, though if you want them just PM me.

Ex Bmw owner · Mar 10th, 2007, 20:11

Thanks,will check fuses tomorrow

Ex Bmw owner · Mar 11th, 2007, 12:41

Have checked fuses and they are all fine,also i can hear motor moving whatever it needs to when i change it from hot to cold.Think it must either b an air lock or something to so with the sensor,it's just a case of knowing where to start!!!

Mar 10th, 2007, 17:43	#1
Ex Bmw owner Junior Member Last Online: Aug 31st, 2012 19:25 Join Date: May 2006 Location: Market Harborough	Chilly climate control Hi,my climate control on my 98 S40 has decided it will only blow cold for some reason.If you alter it to warm the inside up the blower kicks in (so the sensor must b working) but only cool air is blown out.The problem seemed to start in the bad floods the other day although i've not been through any deep water with it.My first thought was coolant level but the engine is running as it should at around 90 degrees.Any ideas????

Mar 10th, 2007, 19:05	#2
4 forty VOC Member Last Online: Aug 12th, 2015 14:44 Join Date: Dec 2001 Location: sunderland	clicking sound when you switch the control from cold to hot, can you hear a clicking sound? paul

Mar 10th, 2007, 19:22	#3
Ex Bmw owner Junior Member Last Online: Aug 31st, 2012 19:25 Join Date: May 2006 Location: Market Harborough	No,don't think it's anything to do with the recirculation switch as it's normaly those that click isn't it?

Mar 10th, 2007, 19:35	#4
morphinemitt My nipper said! Last Online: Aug 1st, 2022 20:15 Join Date: Oct 2006 Location: Who knows?	I had this problem years ago on another vehicle and it turned out to be an air-lock in the heater matrix. Could be the same on yours, or maybe the flap that directs the air over the heater matrix isn't functioning somehow. It's a pain in the arse nowadays with these problems, at least years ago you could actually hear the flap moving when you switched from hot to cold or vice-versa. That's all I can think of sorry. Hope this helps.

Mar 10th, 2007, 20:02	#5
morphinemitt My nipper said! Last Online: Aug 1st, 2022 20:15 Join Date: Oct 2006 Location: Who knows?	Me again, Try checking the fuse/motor which controls the opening and closing of the aforementioned flap. I have a list of what the fault codes mean, but that's useless without you having a fault code reader I guess, though if you want them just PM me.

Mar 10th, 2007, 20:11	#6
Ex Bmw owner Junior Member Last Online: Aug 31st, 2012 19:25 Join Date: May 2006 Location: Market Harborough	Thanks,will check fuses tomorrow

Mar 11th, 2007, 12:41	#7
Ex Bmw owner Junior Member Last Online: Aug 31st, 2012 19:25 Join Date: May 2006 Location: Market Harborough	Have checked fuses and they are all fine,also i can hear motor moving whatever it needs to when i change it from hot to cold.Think it must either b an air lock or something to so with the sensor,it's just a case of knowing where to start!!!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)