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Thread: Blower Fan DIY
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Old 04-29-2012, 11:37 AM   #156
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Join Date: Apr 2012
Location: Los Angeles CA
Posts: 20
My Ride: 325i
Replacement of Blower Motor: creating access clearance

Originally Posted by paraklas View Post

I was trying for 4 hours to remove the fan and eventually I broke the plastic blades in an explosion of anger. I was then trying for another 4 hours to get the new fan in without breaking anything.

Can't help with that, you will have to struggle to get it out & in. I also disconnected the left flap to have some freedom of movement. Sorry for the lack of pictures here, it's easy to disconnect it.

Once you successfuly place the new fan, connect the power connector, secure it using the clips that held the old one, test it, and put all the covers back in reverse order.
This is an excellent thread as far as it goes. However the method for getting the blower into the cavity is not an obvious one.

Taking the engine cover off as suggested above is a start, however an additional inch or so of clearance is required. I have heard many people say that getting access is very difficult, and this is my experience. The objects which block access are massive and have a lot of wires and hoses attached to them.

I have seen posts in which people seriously suggest that dropping the engine a couple of inches for access by undoing the bolts on the engine sub frame is the best way to get access to this fan. This is pretty extreme, and I will try this last.

I have seen a post suggesting that taking the intake manifold off. On a 330 this is a serious job. I have a feeling that on a 325i it may not be quite as bad, but still to R&R the intake manifold on these cars is not a romp in the park.

I will probably remove the intake manifold next, in order to create clearance to install the fan. I have just ordered the gaskets, and I will be looking for limited service items, like hoses, to replace while I am in there. If any one has replaced a blower lately, I would be very interested to hear from them, as to exactly which parts need to come out in order to replace the fan.

Thanks in advance for any help.


Last edited by Rob_in_LA; 04-29-2012 at 11:45 AM. Reason: clarity
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