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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-16-2010, 06:31 PM   #1
tko200
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lower intake boot job

my engine soon light was on i suspected i had a vaccum leak somewhere, check my lower intake boot and it was ripped open, it's a tuff diy i had
to remove the plastic pieces from the firewall and the adjuster the diy is nightmare.
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Old 01-16-2010, 06:35 PM   #2
Golden330ci
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just replaced mine...wasnt fun
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Old 01-16-2010, 06:42 PM   #3
e46Scrub
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Just did this as well. I had to replace both that piece and the piece above it PITA. They made it really tough to get in there it really is a pain to reach.
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Old 01-17-2010, 10:00 PM   #4
GEEZ_ITS_A_BMW
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while you were down there hope you cleaned your throttle
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Old 01-17-2010, 10:32 PM   #5
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It's not hard at all to do the job...
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Old 01-18-2010, 06:35 AM   #6
magnuzza
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It's not hard at all to do the job...
Just like jake said, not that hard for me, took about 40 minutes from start to finish. Definitely worth the work, my MPG increase by 1 yay!
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Old 01-18-2010, 09:46 AM   #7
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i replaced mine last week when i did the ccv valve and all its hoses. i had problems with the wiring harness box being in the way as i was using a 6mm rachet to remove them, my big hands and a screwdriver had trouble getting in there. lol.
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Old 01-18-2010, 10:37 AM   #8
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Originally Posted by tko200 View Post
my engine soon light was on i suspected i had a vaccum leak somewhere, check my lower intake boot and it was ripped open, it's a tuff diy i had
to remove the plastic pieces from the firewall and the adjuster the diy is nightmare.
Very common! Replaced the one on my E46 330i, and E53 X5.

Usually a very easy & inexpensive DIY! We have them available

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Old 01-18-2010, 11:35 AM   #9
Illogical_Mind
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I've never taken my cars anywhere besides inspection, when you guys call a job like this a DIY, i feel like i'll be a pioneer when i turbo my 323 for under 2k. Does the dealer give KY also for work like this?
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Old 01-18-2010, 11:46 AM   #10
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I've never taken my cars anywhere besides inspection, when you guys call a job like this a DIY, i feel like i'll be a pioneer when i turbo my 323 for under 2k. Does the dealer give KY also for work like this?
Calm down there, big shot. Not everyone sprang fully-formed from Zeus's head with a torque wrench in one hand and their **** in the other hand.
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Old 01-18-2010, 11:57 AM   #11
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^i thought that was normal?

Wasn't all that bad of a DIY.
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Old 01-18-2010, 01:14 PM   #12
Illogical_Mind
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lol i'm just playin, i'm nothin but happy about bein able to work on a car. It scares me to know that theres some things, like gettin my daytime lights turned off, that you just can't do without a garage. Lucked out that there is an indy BMW garage near me. don't get upset. This ****'s expensive.

I also just feel like there's a lot of stuff on these that can be explored and worked with. Everybody on here just immediately says don't waste your time when there is a modding question. I feel like a 10 year old car has more aftermarket options by now then it did when some of these posts were made.

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Old 01-18-2010, 04:37 PM   #13
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The hardest part on that boot is that the hose clamp is inverted for some reason. That makes it 10x harder than it needs to be.
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Old 03-08-2010, 11:18 PM   #14
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The hardest part on that boot is that the hose clamp is inverted for some reason. That makes it 10x harder than it needs to be.
I am trying to get mine out now to clean the icv and I am stuck at this point. The clamps are on the underside and i have no way of reaching them to loosen them. How did you overcome this challenge?

Any help is very much appreciated.

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Old 03-08-2010, 11:26 PM   #15
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Originally Posted by lecourasa View Post
I am trying to get mine out now to clean the icv and I am stuck at this point. The clamps are on the underside and i have no way of reaching them to loosen them. How did you overcome this challenge?

Any help is very much appreciated.

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Same thing happened to me. If you reach deep into the engine bay where the air box was before you removed it (hopefully you removed it), you can stick a screwdriver onto the back end of the bolt for the clamp. Then take a hammer and hammer it so it is eventually facing upward enough for you to unscrew it from the top of the engine bay looking down (to the ground)

That helped me.
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Old 03-08-2010, 11:30 PM   #16
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Originally Posted by lecourasa View Post
I am trying to get mine out now to clean the icv and I am stuck at this point. The clamps are on the underside and i have no way of reaching them to loosen them. How did you overcome this challenge?

Any help is very much appreciated.

Frustrated,
Alexis
I used a gearwrench type ratchet with an addon to go in the wrench to let it hold sockets. since the head swivles both ways on the particular ratchet I used I could point it back torwars me and lower it around the shadow of the intake boot to do the work. I was struggling the last time I did this before I found that out.

Naturally when I put them back on I had the screws facing up towards the hood.
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Old 03-09-2010, 10:04 AM   #17
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Flexible screwdriver will make short work of those hose clamps.
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Old 03-09-2010, 10:15 AM   #18
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yes...

The only ones to think about how to install something so it can be gotten to are mechanics.
The guys who build 'em don't have to worry about taking them apart.
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Old 03-09-2010, 06:30 PM   #19
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I used a 1/4" drive flexible spinner handle with a 6mm socket. You can find them at Sears for under $10. Might also want to get a 1/4" drive flexible extension, in case you need it a little longer. I got the one on the ICV off with a piece of RG6 TV cable with a 6mm socket rammed onto the end and taped, before I finally broke down and went to Sears for the spinner handle.
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Old 03-09-2010, 06:32 PM   #20
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my big hands and a screwdriver had trouble getting in there. lol.
Amen to that. I did mine as preventative maint in 90 degree heat last summer and it sucked... it was like giving birth except in reverse.
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