Thermostat problems

[jmurphy]

My 323i does not reach the optimal temperature any more and the blowers are just blowing Luke warm air!! I think it has something to do with the thermostat but I don't even know where to start the diagnosis or fault finding, any ideas??

[WarNox]

so is the 'blower' blowing at maximum speed all the time?

[tomctx]

Originally Posted by jmurphy

My 323i does not reach the optimal temperature any more and the blowers are just blowing Luke warm air!! I think it has something to do with the thermostat but I don't even know where to start the diagnosis or fault finding, any ideas??

First make sure the system is completely bled. Do a search, should be many threads. If it is bled correctly, and you're still not getting hot air, it could be the thermostat.

[93 325i]

most likely the thermostat.. good preventative maintence to do the water pump and thermostat anyway. I did whole cooling system overhaul and fan delete. Took about 2-3 hours from start to finish and parts only cost $200

[marq-jt]

Well i have the same problem but Im not getting warm air only cold... soo you guys think my thermostat is the problem aswell... the collent level is fine..
or o i need to d oa collent flush??