First of all, i would like to thank the e46fanatics community so much for chiming in on this thread ( http://ift.tt/2rQiB6V) to help this newbie out with the lower intake boot replacement! It took me way to long because I was very cautious each time I encountered a challenge. I also dropped one 6mm wrench and 1 10mm ICV bolt into the abyss of my engine compartment never to return. I had to go to the hardware store twice to replace these items!
Here are my takeaways/notes the things that held me up a bit:
1) I knew that I needed to use needle nose pliers to remove the little clamps on the air intake, but, was unsure if they twist off, or if you pushed on them etc... Obviously I realize now that you simply grip them with the pliers and pull them out away from the engine bay.
2) One the upper boot was removed, I had a ton of trouble accessing the the clamp bolt that holds the lower intake boot to the throttle body. I think it was jfoj who said he uses a blad to cut a large part of the lower boot off to gain easier access; this helped quite a bit. But, I hadn'r seen it specified that a 6mm wrench would be the best tool to utilize to get that bolt loose if it is in the original factory position behind the Lower boot. I did eventually figure this out. I also removed the ICV to gain even better access. I did not see this step included in most tutorials, but it did help quite a bit both in removing, and re-installing the lower boot.
3) I wish I would have had some throttle body cleaner to clean the throttle body and ICV...I'll prob pull it all apart again soon and do this.
4) I didn't see any info on how to best position the clamp bolts during reassembly. I kind of did my own thing on this and will post pictures below of how I oriented them.
5) If I had to do this again, I feel like I could do it in a very short amount of time! I am glad I did it myself and feel like I got to know my car much better! With the exception of the clamp on the lower boot, this was a very easy job and the engineers at BMW made this part of the car very intuitive and user friendly to work on.
Here are my takeaways/notes the things that held me up a bit:
1) I knew that I needed to use needle nose pliers to remove the little clamps on the air intake, but, was unsure if they twist off, or if you pushed on them etc... Obviously I realize now that you simply grip them with the pliers and pull them out away from the engine bay.
2) One the upper boot was removed, I had a ton of trouble accessing the the clamp bolt that holds the lower intake boot to the throttle body. I think it was jfoj who said he uses a blad to cut a large part of the lower boot off to gain easier access; this helped quite a bit. But, I hadn'r seen it specified that a 6mm wrench would be the best tool to utilize to get that bolt loose if it is in the original factory position behind the Lower boot. I did eventually figure this out. I also removed the ICV to gain even better access. I did not see this step included in most tutorials, but it did help quite a bit both in removing, and re-installing the lower boot.
3) I wish I would have had some throttle body cleaner to clean the throttle body and ICV...I'll prob pull it all apart again soon and do this.
4) I didn't see any info on how to best position the clamp bolts during reassembly. I kind of did my own thing on this and will post pictures below of how I oriented them.
5) If I had to do this again, I feel like I could do it in a very short amount of time! I am glad I did it myself and feel like I got to know my car much better! With the exception of the clamp on the lower boot, this was a very easy job and the engineers at BMW made this part of the car very intuitive and user friendly to work on.
My Newbie Lower Intake Boot Replacement Take-Aways
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