2008 328i does this model No Heat just cold air.

[trun10tion]

Hi does this model have heater control valve? i looked i see hole in driver side wheel well. and hose going from radiator to firewall. i have cold air coming in at all vents even under defrost mode. Also while eng running felt no water pressure going to heater core. At first heat would come out then slowly hot, cold not cold.

[White94RX]

There is no hot water valve. The most common failure I've seen on E90's, causing a no heat condition, has been the heater cores getting clogged.

[dworthy]

+1

You can attempt to flush it, but sometimes it so bad that there is nothing you can do.