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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 12-15-2009, 07:53 PM   #61
wvgrbc
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i just did this two days ago. I also replaced the oil separator and all the associated hoses. I also replaced the thermostat. everything went together just fine, but when I was done the car is hard to start and does not idle right. I've verified that all the electrical connections are properly made up. I don't think you can misconnect the connectors - they aren't interchangeable - still, i must have done something wrong. any ideas?

http://forum.e46fanatics.com/showthr...car+will+start
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Old 01-20-2010, 03:26 PM   #62
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Question, To all you guys that have done this, have you also removed the fan? using the "special" tool?
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Old 01-24-2010, 02:11 PM   #63
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Question, To all you guys that have done this, have you also removed the fan? using the "special" tool?
I plan on removing my mechanical fan just to clear some room. Don't know if it's necessary but it can't hurt. Only takes a few minutes to remove.

For anybody that has done this already, would you mind posting a list of tools you used?
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Old 01-25-2010, 11:09 PM   #64
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Question, To all you guys that have done this, have you also removed the fan? using the "special" tool?
Did this about 2 months ago.
I did not have the tools necessary to remove the fan, so I just did it with the fan on. Wasn't too uncomfortable.
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Old 01-25-2010, 11:34 PM   #65
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Did this about 2 months ago.
I did not have the tools necessary to remove the fan, so I just did it with the fan on. Wasn't too uncomfortable.
WOO, Thank you. Gave me some encouragment. I like to remove as little as possible.
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Old 01-26-2010, 08:20 PM   #66
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I don't know how in the world you would get this done without taking the fan off. It literally takes 5 minutes to take the fan off and frees up a ton of room....what's the problem with taking it off?
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Old 01-26-2010, 08:44 PM   #67
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I don't know how in the world you would get this done without taking the fan off. It literally takes 5 minutes to take the fan off and frees up a ton of room....what's the problem with taking it off?
I stated in my previous post that I did not have the tools to remove the fan.

The only part that i remember to be difficult to do with the fan on, was removing the top belt. Other than that it wasn't really in the way of anything i was doing.

And this DIY can be done without removing the fan because i did it.

Last edited by TX325i; 01-26-2010 at 08:48 PM.
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Old 01-26-2010, 11:58 PM   #68
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Cool, Ya ive replaced my belts without removing anything. Passed the belt behind the fan and made it work.
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Old 01-27-2010, 12:16 AM   #69
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i had the "enjoyment" of replacing the filter housing/assembly last weekend - broken tab when the primary belt tensioner broke
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Old 01-27-2010, 09:59 AM   #70
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Just wanted to throw down a quick thanks to the OP and all those contributing made the job really an easy one. As for removing the fan, it defenitely makes life easier, also you dont require any special tools if you have a manual car, but I do believe that you do need the fan tools if your car is an AUTO (i actually have those from my other bimmers anyway.) If anyone has any questons, I can be reached on PM.
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Old 01-27-2010, 01:27 PM   #71
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wont a long arm 32mm wrench work
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Old 01-27-2010, 05:48 PM   #72
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wont a long arm 32mm wrench work
Yes it will. I did not have one though. Also need something to hold the pulley from turning.
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Old 01-27-2010, 07:12 PM   #73
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Yes it will. I did not have one though. Also need something to hold the pulley from turning.

You know thats intresting that you brought that up. Few months ago i had a BMW shop change out my belts (3 years after my DIY, Got lazy) they did remove the fan however he only used one tool, which was the 32mm, he just spun it and the fan came loose. I did notice that he used a hammer and hit it on the head of the wrench, then spun it. dono why, but he got it off by using one tool
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Old 01-28-2010, 12:10 AM   #74
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You know thats intresting that you brought that up. Few months ago i had a BMW shop change out my belts (3 years after my DIY, Got lazy) they did remove the fan however he only used one tool, which was the 32mm, he just spun it and the fan came loose. I did notice that he used a hammer and hit it on the head of the wrench, then spun it. dono why, but he got it off by using one tool
Interesting. I've removed fans on other cars and usually i always need another tool to keep the pulley from turning. Not sure about our cars though.

Could be that the fan wasn't too tight on your car?
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Old 01-28-2010, 01:50 AM   #75
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... he only used one tool, which was the 32mm ... he used a hammer and hit it on the head of the wrench, then spun it ...
That's the 'standard' way of removing the fan for most indy shops and experienced DIYers the past 30 or so years. Just make sure you don't hit your fingers.
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Old 01-28-2010, 10:35 AM   #76
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hmm, ya he didnt even try using anything else. Just put it in and turned it and out it came. Guess you can.
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Old 01-28-2010, 10:35 PM   #77
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Come on you n00bs, you should know by now that all you need is one wrench, either 32mm or the equivalent standard size (forgot what it is). Couple hits with a mallet and the fan bolt is loose...the tensioner provides enough resistance. I have had no need for a tool to hold the pulleys in place to do this, and I've had my fan off 10+ times.
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Old 01-28-2010, 11:47 PM   #78
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^^ good to know
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Old 01-29-2010, 02:03 PM   #79
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Replaced the gasket yesterday. Super easy. Hardest part was getting the alternator back in. The bottom 13mm bolt didn't want to align. A few carefully calculated whacks with a rubber mallet and some creative reverse threading, and it went back in. Took around 30 minutes to get it back in place. Other than that, extremely easy DIY... so easy that I decided to replace the oil separator and associated hoses to make it more difficult. Still wasn't that difficult, just tedious. Just remember to label your wiring harnesses.
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Old 01-29-2010, 04:13 PM   #80
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Thank you. Good to know. Did you remove the fan?
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