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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 09-16-2013, 10:23 AM
ehawes1 ehawes1 is offline
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Mein Auto: 2006 325i
2006 325i fan blower issues

I have a 2006 325i. Car has 111,000 mi on it at the moment. The past few weeks the fan has been making a noise similar to a cricket. It is only the fan-not affected by the AC being on or off. Today the fan stopped blowing. The display shows the fan is on and when I engage AC you can feel that it will shoot a spurt of cold air out of the floor vents yet the blowers do not work past that.

If this is something I can fix myself I'd like to. I did a small amount of reading and it may be a connection issue.

Any input is greatly appreciated!

Thanks!
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  #2  
Old 09-17-2013, 02:34 PM
fdriller9 fdriller9 is online now
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Replacing the AC blower motor is a pretty involved job requiring the removal of most of the passenger side dash, glove box, etc.

There was a service bulletin released for early build E90s in regards to a leaking windshield cowl cover. The cowl cover (the plastic bezel that sits on the bottom of the windshield), lifts due to warping or from improper installation. When the cowl is not properly fitted, water leaks onto the AC blower motor, rusting the bearings, causing it to squeak and eventually seize and fail.

A wet passenger carpet is also an indication your cowl is defective.

If your cowl is lifting up, inspect it. Make sure the trim on the bottom of the windshield is installed. (You need to remove the cowl to inspect this) The cowl clips into this trim and this is how it creates the pressure to seal against the windshield.

If the trim piece is missing or the cowl is lifting, replace the necessary parts.

Then replace your AC blower motor.

If you neglect to repair the cowl cover (if it indeed needs to be repaired), before replacing the AC blower motor, you will run into the same issue a few months down the road.
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  #3  
Old 09-19-2013, 07:06 AM
ehawes1 ehawes1 is offline
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I am almost positive it is the fan motor. My mechanic quoted me at $350 for the motor with labor included. Would I be saving any money by ordering the part myself and having him install it or am I better off just letting him do his thing?
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  #4  
Old 09-19-2013, 09:34 AM
ottawae91 ottawae91 is offline
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thanks for the info RE the cowl warping. my fan is starting to squeak ever so faintly under braking. i was just gonna shoot some oil at it via the cowl opening when i replace the filter, but i suppose i'll need to look more closely at the state of things while i'm there
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  #5  
Old 09-25-2013, 07:33 AM
ehawes1 ehawes1 is offline
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I took it into the mechanic today. Turns out it was the blower motor as suspected. $460 fix-is this fairly middle of the road for a BMW independent mechanic?

My mechanic also informed me that the windshield cowl would not have played a role in my motor going out. Even though it is slightly lifted off of the glass, he said water would do into drains from there. Yet, I did notice an ever so slight dampness on my passenger floorboard. My suspicion is that the cowl is leaking and I will need to replace it. I am wondering if I wait a few weeks if I run the risk of ruining a new blower motor.
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  #6  
Old 09-25-2013, 01:10 PM
fdriller9 fdriller9 is online now
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Quote:
Originally Posted by ehawes1 View Post
I took it into the mechanic today. Turns out it was the blower motor as suspected. $460 fix-is this fairly middle of the road for a BMW independent mechanic?

My mechanic also informed me that the windshield cowl would not have played a role in my motor going out. Even though it is slightly lifted off of the glass, he said water would do into drains from there. Yet, I did notice an ever so slight dampness on my passenger floorboard. My suspicion is that the cowl is leaking and I will need to replace it. I am wondering if I wait a few weeks if I run the risk of ruining a new blower motor.
This is a known and documented problem. A service bulletin was released from BMW about this issue.

Your mechanic does not know what he is talking about...

Remove the cowl and see for yourself, the blower motor fan is exposed and water can EASILY drip into the housing.
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  #7  
Old 09-25-2013, 01:12 PM
fdriller9 fdriller9 is online now
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The cowl redirects water to the drains but how do you expect the cowl to perform it's job if it's not flush against the glass?
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  #8  
Old 09-29-2013, 08:05 AM
ehawes1 ehawes1 is offline
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I believe it is the cowl after my readings and advice from here. I will be ordering a cowl for it this week so I can replace it myself.
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