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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 01-10-2011, 11:50 PM   #121
FFWD
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I finally started this DIY on my 1999 323i (10/98 build). I opted for the 64-11-3-453-729 part number. The replacement fan I got came with the plastic bracket that it sits in and that the metal clip secures it to. It's different from the one that came with the car originally, so I replace that too. Other than that, I also had to remove the engine cover that covers the spark plugs/coils to make room for the fan to come out of the passenger side of the engine compartment. Biggest problem now is getting the clip back on. It doesn't seem to want to catch the bottom flange. I'll keep trying and post an update.
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Old 01-11-2011, 01:37 AM   #122
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Ok, I'm finally done, and the new fan is working great! Big thanks to everyone's input on this thread, but especially paraklas for starting it and TitaniumCranium for confirming the alternative (cheaper) part number works.
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Old 01-11-2011, 09:04 AM   #123
OrientBlau
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I ordered the blower w/cover and have it sitting in my apt. No rush as I lived with this sporadic sound for a few years in WTF land, until finding the remedy on e46! I bet if I took it to a dealer they would've told me $500 to make the sound disappear.
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Old 01-11-2011, 01:22 PM   #124
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Replaced my blower with a new one from Tischer thanks to everyone's help in this thread!! Cricket sound was completely gone and the fan was nice and quiet. I could easily tell the bearing in the old fan was shot because I couldnt even turn the blades by hand, whereas they spin very freely on the new unit. HOWEVER, after a month or so of nice quiet operation, i'm getting crickets again. Maybe not as loud as before and the pitch is higher, but its the same noise. Could the new blower be defective? I'm not sure how it could have been fine for a few weeks and is now making noise
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Old 01-11-2011, 01:30 PM   #125
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I hope mine doesnt return after replacement. Is there some sort of silicone lubricant we can use before installing?

Whats weird is that if I ask pax if they hear it (with radio off), and they dont notice it at all. Drives m crazy, though!
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Old 01-11-2011, 02:11 PM   #126
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Quote:
Originally Posted by OrientBlau View Post
I hope mine doesnt return after replacement. Is there some sort of silicone lubricant we can use before installing?

Whats weird is that if I ask pax if they hear it (with radio off), and they dont notice it at all. Drives m crazy, though!
I would refrain from using any kind of lubricant because of attracting and holding dust.
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Old 01-12-2011, 12:49 PM   #127
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The beauty of going with an original BMW part is that you have a full two year unlimited mileage warranty on the part (at least up here in Canada). Are you sure the cricket sound is coming from the new blower? Apparently there's also an internal recirculation fan under the dash that can also make the noise. Search around and you'll find it.

Quote:
Originally Posted by wërkahölik View Post
Replaced my blower with a new one from Tischer thanks to everyone's help in this thread!! Cricket sound was completely gone and the fan was nice and quiet. I could easily tell the bearing in the old fan was shot because I couldnt even turn the blades by hand, whereas they spin very freely on the new unit. HOWEVER, after a month or so of nice quiet operation, i'm getting crickets again. Maybe not as loud as before and the pitch is higher, but its the same noise. Could the new blower be defective? I'm not sure how it could have been fine for a few weeks and is now making noise
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Old 01-15-2011, 06:28 PM   #128
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replace the brushes

From what my master tech tells me, the brushes die and that is the clicking noise you are hearing and IF you want you can just replace the brushes and save the motor and soak the bearings while it is out.
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Old 03-10-2011, 07:22 PM   #129
FFWD
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Has anyone tried this on a left hand drive E46 M3? I was thinking of helping a friend with his, but based on a post on M3F, some guy followed this thread and got to the motor but couldn't get it out. They think the M3 motor sits higher or something. Maybe they didn't take off the engine cover? Would be nice to know of any issues before we tear into it. Thanks!
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Old 03-12-2011, 03:38 PM   #130
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Ack. I just dropped mine while in the box and the blades broke on one side. It says its a behr, does anyone know if the fan blades are replaceable?
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Old 04-09-2011, 11:54 PM   #131
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I need to do this to mine, I am planning on getting the $100 fan, but I noticed on the last page here someone said something was different and had to replace that too, I think it was the first post of page 7 or near there.. also someone else mentioned they bought the fan and the cover.. is the cover different? Does it need to be replaced? Is there anything I'll need besides the fan? I have the factory alarm, does the siren have to come off to get the fan out from the pass. side? Thanks!
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Old 04-10-2011, 01:31 PM   #132
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No need to touch the siren. And even if you do want to take it out, it's just a bolt and a connector
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Old 04-11-2011, 01:31 AM   #133
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Does the Ticher 64-11-3-453-729 also fit on the 318i Sedan from '99? It's not listed on their site... thanks!
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Old 04-11-2011, 08:41 AM   #134
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also someone else mentioned they bought the fan and the cover.. is the cover different? Does it need to be replaced?
This is somehting different than the center blower.

A cricket sound develops by the foot pedal area. The CPU fan bearings begin to make a chirping noise.

The unit itself is called the "cover with blower," and its sold as one single unit. They can not be bought separately.

12907571019

Photo belowfrom ECSTuning.com

http://www.ecstuning.com/ES2519/ES32182/






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Last edited by OrientBlau; 04-11-2011 at 08:44 AM.
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Old 04-11-2011, 01:52 PM   #135
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I just bought the blower with cover and replaced it yesterday. Overall it took 25mins and the cricket noise is now gone. The hardest part was reinstalling the connector plug on to the bracket in the CPU housing.
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Old 04-12-2011, 12:21 AM   #136
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That would be great but the sound is coming from the hvac.. when I turn the blower off it goes away..
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Old 04-17-2011, 08:03 PM   #137
floyd956
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My a/c did the exact same thing yours did. I have power and a hint of cold air comes out when driving. Did yours turn out to be the Final stage Transistor or the Fan?
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Old 06-28-2011, 04:05 PM   #138
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I am still a little confused with what the possible cricket noise could be coming from. A few people have mentioned there is another blower on the driver's side. If I hear the cricket noise mostly from the driver's side vent, and I hear nothing from the center, would I assume that it if the blower with cover that people have talked about?
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Old 06-29-2011, 08:47 AM   #139
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Quote:
Originally Posted by association16 View Post
I am still a little confused with what the possible cricket noise could be coming from. A few people have mentioned there is another blower on the driver's side. If I hear the cricket noise mostly from the driver's side vent, and I hear nothing from the center, would I assume that it if the blower with cover that people have talked about?
If the sound is generally a high-pitch whirling, buzzing, gurgling or "electronic" sound emanating from the drivers side vicinity (foot pedal or cluster area) and it is somewhat intermittent, then it is likely your "cover with blower."

The bearings get dry and begin to squeak, creating this noise.
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Old 06-30-2011, 07:07 AM   #140
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I just bought my first bmw and have to say this forum is awesome, keep up the good work guys. I have been noticing a chirping in the center of my dash when my car first starts and the air kicks on or going from a higher speed fan setting to a lower one. Also when I shut the fans off i hear a gurgling or like water bubling in the center of my dash. Are these all the same symptoms that were cured by reaplacing the blower fan? thank you all for your help in advance. I did read the entire thread and am just looking for reassurance that replacing my blower motor is the proper fix
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