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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 12-22-2011, 05:47 PM   #121
mrbudman13
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Anyone know what external torx size socket for the 2 bolts in the front under the black grill when removing the bumper? It would be appreciated.
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Old 12-22-2011, 06:15 PM   #122
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OK did some Google searching I think it might be an E10 torx socket. Here is a link I found for a front bumper removal procedure and you can see the bolts I am talking about.

http://bmw.tech.officelive.com/E46BumperRemoval.aspx
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Old 12-22-2011, 08:27 PM   #123
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The two bolts for the reinforcement bar? I used a 9mm socket.
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Old 12-22-2011, 08:50 PM   #124
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I'm doing my cooling system early next year when time permits...I might also do this.

Does the mechanical fan suck? Why do Auto's have 2 fans?
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Old 12-24-2011, 02:58 PM   #125
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Quote:
Originally Posted by zander271 View Post
I'm doing my cooling system early next year when time permits...I might also do this.

Does the mechanical fan suck? Why do Auto's have 2 fans?
no one really knows. some say because the auto tranny needs extra cooling but that has not been proven since auto trannys don't overheat after the swap with the one fan there.
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Old 12-26-2011, 01:13 AM   #126
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Got 85K on the ticker and wanna do the cooling system overhaul; also, my belt tensioners are squeeling like crazy. since Im already in there, I figure Ill do the underdrive pulleys and electric fan too. Gonna add up $$$.
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Old 01-09-2012, 08:54 AM   #127
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Here's two pics of one of the best mods you can do!!

Nice and clean front intake duct (adding some home made RPI scoops to them soon )




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Old 01-22-2012, 09:43 PM   #128
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Originally Posted by Nervous View Post
They are just clips, so just unscrew the screw as far as you can and just pull it out:


P/n:51-71-8-229-003

I ran into the same problem...all 4 of mine broke.

Last edited by zander271; 01-23-2012 at 11:03 AM.
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Old 01-23-2012, 01:53 AM   #129
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If the 4 plastic screws break, use 2 zip ties! Worked perfect!

Click image for larger version

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Btw car sounds great and much easier to work on now.
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Old 01-23-2012, 07:39 PM   #130
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I think one or two of mine broke but the duct is held in there good. Nice small trick. How do you like the swap?
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Old 01-23-2012, 09:48 PM   #131
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Interesting. I dont remember the four clips at all. I don't think the facelifted version has them.
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Old 01-24-2012, 10:35 AM   #132
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For the facelift we that those plastic screws that hold the center duct.
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Old 01-24-2012, 03:11 PM   #133
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I think one or two of mine broke but the duct is held in there good. Nice small trick. How do you like the swap?
First drive this morning. Seems much more quite outside the car and maybe a little on the inside. I also replaced the water pump pully(ESC metal one) and belts while I was in there.

Not sure of the added benefits outside of making your car much easier to work on and more quite. I've seen a few remark about better gas-mileage. I'll report back on that with some real #'s. I have recorded the milegae on this car since the first tank of gas I have put in it using the "Road trip App" on my iPhone.
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Old 01-29-2012, 06:00 AM   #134
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Hey guys, been going through hell trying to JUST get started with removing my mechanical fan in order to get to the real Problem - blown idler pulley, shredded main belt. Before I even get there, I'm stuck at stage 1, trying to get this fan nut off. After spending the day trying to get it off, I am seriously considering chucking the Mechanical fan the moment its off and converting to the solo electric fan. My only concern is, has anyone monitored Auto tranny temps, especially in the summer times, in places like LA? Is there a diagnosis option in the dash computer to monitor the temp?

Last edited by Handle46; 01-29-2012 at 06:03 AM. Reason: Missing information
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Old 01-29-2012, 11:52 AM   #135
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I haven't done this swap yet, but I believe that fan nut is reverse threaded, so you remove it by turning clockwise. Could that be your issue?
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Old 01-29-2012, 04:55 PM   #136
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tootall, Yeah I have been turning in that direction, the problem I have is I don't have the main belt on and I cannot put it on cause my idler pulley is broken, so I don't have tension coming from the belt to help loosen the nut, also I have tried using a screw driver between 2 waterpump screws but that just ended up bending my straight flat head into a L shape. Right now, my situation is broken waterpump pulley, broken idler pulley, no main belt, and in need of a serious prayer to get this nut off
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Old 01-29-2012, 06:27 PM   #137
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I think you have to have the right tools:

http://www.amazon.com/Clutch-Wrench-...=1ZILH916PYHNL

It's not impossible to do it without these, but I have not heard any complaints from those who did it with these tools.
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Old 01-29-2012, 06:40 PM   #138
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This thread has a video on how to remove the fan with a 32 mm wrench and a sledge hammer in post #9:

http://forum.e46fanatics.com/showthread.php?t=899656
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Old 01-29-2012, 10:13 PM   #139
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Quote:
Originally Posted by tootall View Post
This thread has a video on how to remove the fan with a 32 mm wrench and a sledge hammer in post #9:

http://forum.e46fanatics.com/showthread.php?t=899656

Yeah, I have seen other youtube vids on removing it w/o the proper wrenches. IMO (please nobody yell at me for his) if you are going to work on your car, you shoudl have the tools.


Quick note - the fan clutch removal tool is sort of universal. You can pick up one for a GMC Jimmy or Ford Explorer and you will be good. I was dumb and bought mine online from bimmerspecialists and paid a fortune to have it sent to Canada ... and when I got it, the packaging lists all these domestic trucks that it will work on.

re: summertime performance - some guys have posted in this thread - they say they are good. Again, this is the fan that is used with the manual tranny.


Quote:
Originally Posted by Solidjake View Post
For the facelift we that those plastic screws that hold the center duct.

omg - thanks Jake. I ijst re-read your post and it just came to me. You are right !! allfour of those damn things broke. Definitely brittle from years of heat. I guess @ my age my memory needs to be jolted @ times
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Old 02-02-2012, 01:17 PM   #140
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Should add a Tranny TEMP Gauge to see where the temps at...
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