3 Series Heater Fan Speed???

[M3wannabe2004]

Hi all, i'm not sure if it's just me but, i have had a few cars in my life and the bmw i have now seems to be the worst for heater controls and fan speeds, im not sure if it's a fault with mine or not, but basically it does seems strange. The car has the following:

-A/C
-Digital Climate Control

When i pump the speed setting to full and only use the front vents it seems the air is only being blown out at the level of a car a manaul control set to about 2!. My mates have other cars and they have also commented, in your opinions is there anything wrong with mine? any checks i can do? or is it just the BMW way. Any help would be greatfully accepted.

Also, I have a strange noise coming from the engine bay at about 3500 rpm, it sounds kinda metallic, like a rattle, but it's the not the engine... any suggestions??

Thanks for the help in advance

[Silverstreak]

Mine is pretty powerful, have you tried messing with teh air vent adjustment controls? Make sure the RED/BLUE wheel adjuster is on the blue side or it will cut the airflow like you are saying.

[kestrel325is]

You might want to look at replacing your In-Cabin microfilter, too.
if it's clogged with crap the blower can't get much air past it.

[BlantonG13]

as for the rattle, check your wheel bearings and bushings...also, check the exhaust mounting brackets...all these can cause a metallic rattle at certain RPMs...

Mine was a result of bearings...you wouldn't think so, but thats what the dealer replaced and now the sound is gone.

[M3wannabe2004]

Originally posted by kestrel325is@Jan 12 2005, 04:41 PM
You might want to look at replacing your In-Cabin microfilter, too.
if it's clogged with crap the blower can't get much air past it.

[snapback]270130[/snapback]

The micro filter was supposed of been replaced no more than a year ago, although I have a sneaky suspician it wasn't, I will check this, thanks mate

[M3wannabe2004]

Originally posted by BlantonG13@Jan 12 2005, 04:52 PM
as for the rattle, check your wheel bearings and bushings...also, check the exhaust mounting brackets...all these can cause a metallic rattle at certain RPMs...

Mine was a result of bearings...you wouldn't think so, but thats what the dealer replaced and now the sound is gone.

[snapback]270140[/snapback]

Well the rattle is apparent at stand still as well, not just when moving, so I guess that rules wheel bearing out, it sounds like it's something on the drive belt, but im shit scared to even go near that!

[M3wannabe2004]

Originally posted by Silverstreak@Jan 12 2005, 03:38 PM
Mine is pretty powerful, have you tried messing with teh air vent adjustment controls? Make sure the RED/BLUE wheel adjuster is on the blue side or it will cut the airflow like you are saying.

[snapback]270067[/snapback]

I thought the red/blue just meant hot/cold, it doesn't seem to make any difference what side it's on, the a/c doesn't seem to be that cold either, my mates crappy 1.2 corsa makes your hands freeze in the summer, mine barely cools you down!, any idea on that as well??