E90Post
 


Bimmer Retrofit
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Overview on installation for those new to the process



Reply
 
Thread Tools Search this Thread
      02-17-2010, 12:20 AM   #1
VP Electricity
Brigadier General
 
VP Electricity's Avatar
 
Drives: E91 XDrive
Join Date: Jan 2008
Location: portland oregon

Posts: 3,177
iTrader: (3)

Overview on installation for those new to the process

I get a lot of questions about installation, so I wanted to post some pointers and see if that was beneficial to folks.

Learning how

If you've never installed before, the E9x isn't the easiest car to learn on. My recommendation for those who want to learn installation has been the same for years: Find a friend who wants tunes, and volunteer to help him or her. That's right, learn on someone else's car, just like most of the pro's do.

Things like how hard to pull, or pry, or push, are things that are learned by experience. They are tactile, not verbal, so if you want to be prepared before taking apart your E9x, you better practice on someone else's car.

This is the area where the early MECP training fell flat - you can't teach "mechanic's feel" (if you don't know what that is, I highly recommend Zen and the Art of Motorcycle Maintenance by Robert Pirsig.


Tools

I hate crappy tools, and I grew up being taught that Snap-On, Mac, and Craftsman were what to use. Craftsman are good and readily available. Matco and Cornwell have come along since then and are also good. I don't recommend cheap tools.

I also strongly recommend against using battery-powered screwguns unless you use one every day. It is really easy to put a screwgun through a speaker, or strip a screw head, if you don't have excellent touch. Take a few more minutes and do it by hand. No reason to strip a bolt head or screw head.

You need 1/4" drive metric socket sets for more things than I can count. I think highly of Craftsman.

You need a 3/8" drive TORX socket/bit for the underseat bolts (T47?) so you need a ratchet for that. I think highly of Craftsman.

You need a set of TORX drivers for the door screws, the underseat woofer mount screws, etc. (Don't depend on short Torx bits, as they won't go deep enough into the door).

You need a number 1 Phillips screwdriver for underseat grilles (I've seen those crappy screws replaced with 2" drywall screws with #2 Phillips heads with no ill effects).

You need wire cutters (can be crappy, but they are frustrating) and crimpers (better get good ones). The cheapo flat-stamped crimpers are hard to use and your hand gets really tired, and you make bad crimps. If you are gonna do this more than once, get Kleins:

http://www.amazon.com/Crimping-Insul...381955&sr=1-19

http://www.amazon.com/Klein-11053-Kl...381955&sr=1-15


You need plastic door tools. These things are a godsend. We used to use metal tools with electrical tape wrapped around them to try to avoid scarring anything.

http://www.amazon.com/Door-Panel-Rem...6381026&sr=1-6

You really need a voltmeter. No excuse for not having one. Cheapo ones seem to work just fine:

http://www.amazon.com/Innova-3306-Ha...382218&sr=1-17

If making an amp rack, a power saw, a drill, a tape measure, and a square are important.


Supplies
  • Electrical tape
  • Heat shrink (various-sized kit) and a lighter
  • Wire terminals, crimp-on
  • Foam weatherstripping tape for speaker gasketing
  • Black spray paint, flat/primer
  • High-temp black silicone hot glue and a glue gun to "tack" tweeters into place (after snapping them in, I really don't want them failing out, and glue guns are cheap)
  • Wire ties (a cheap side cutter helps keep them neat).
  • Towels and old blankets (to set parts on top of other parts without scratching, especially around the HU dash area).
  • Drywall screws can be invaluable. 1" to 1-1/4" for subwoofer mounting, 1-1/2" to 2" for reinstall of underseat grilles...
  • Clear liquid hand soap (if pulling speaker wire into doors) and paper towels (for post-pull removal of said soap)
  • Cheap Glad resealable food containers for screws and such so they don't get lost.

Documentation and planning

If you haven't taken it apart before, you may want to document the entire process, with a still camera, or a video camera on a tripod if you are really into that sort of thing. ON your own, a still camera is way easier.

Print out all the tech info you've found while searching. Keep it all together.

Map out your wiring at each end on a piece of paper, so you've got it in front of you when the time comes. If you can't do it on a piece of paper, you may not be able to do it in reality either (many pros can't do it on a piece of paper easily, but you're not a pro, either : ).

I'm a BIG believer in a "punch list" - all the tasks which need to be done, roughly in the order you think they need to be done, double-spaced, zand with checkmark boxes for bullets (I do mine in Word). The double spacing is for amendments as you realize what you missed. Print them out and tape them up to the side back window. Keeps me on the right path when my back is hurting and I start to make mistakes.

Feel free to overuse electrical tape as a temporary insulator to make SURE hot wires NEVER short against other wires, gear, or metal. Tear off a piece and use it to mask bare wire, then throw it away. That's what it's for.


Notes

A poor installation can make great gear sound crappy.

If you've never done mechanical work before, don't make assumptions that seem like common sense.

Don't assume that the pics of DIY work on the Internet are all good examples... too much DIY work on the Internet is by guys with more pride of accomplishment than actual skill. My goal is that it look like it might have been factory. Don't alter the intended use of the car or its functions.

Speakers need a baffle and need solid mounting. A baffle prevents air in front of the cone from rushing around the edges of the forward-moving cone, and filling the low-pressure area behind the cone. If you are mounting any cone driver and it doesn't have a baffle, it won't play as low a note as it could.

If you get frustrated or stuck, take a walk, or go get a drink (stay hydrated).

Stay off the cellphone. Pay attention.

Don't assume that this sort of work doesn't require intelligence because it involves wrench-spinning. I've seen mechanical engineers get their asses kicked by working on cars.

If all this freaks you out, either find a good pro, or go back to line 20: Find a friend's car...

If you are pulling the battery on an X-drive car, the warning light after you reconnect the battery will go out after circling the block a few times.

If removing or unplugging a seat, turn the ignition completely off, and do NOT turn on the ignition again until both seats are plugged in. You would trigger an SRS warning light that won't go out by itself...


Other comments?
VP Electricity is offline   United_States
0
Reply With Quote
      02-17-2010, 01:13 AM   #2
wareagle900
Banned
 
Drives: 2006 BMW 330i
Join Date: Aug 2009
Location: South East Alabama

Posts: 413
iTrader: (0)

Sticky!
wareagle900 is offline  
0
Reply With Quote
      02-17-2010, 11:03 AM   #3
808MGuy
Colonel
 
808MGuy's Avatar
 
Drives: 2009 E90 M3
Join Date: Jun 2008
Location: Oahu, Hawaii

Posts: 2,273
iTrader: (3)

Just a couple things to add. If you're going to take your door panels off or any other panels that are held in by plastic rivets or clips more than once, it is inevitable that you will break one of the clips that holds it in place. Buy a few spares from your local dealer just in case. They only cost about $1 each.

Also, the plastic pry tools that VP mentioned come in different types. Usually a soft, medium and stiff. Get the stiff. For the plastic trunk panel, I practically bent my medium tools in half trying to get those plastic rivets out. The medium just wasn't stiff enough to overcome the friction of those rivets. I ended up breaking them when I used a metal tool and then I replaced them. These are the ones I got off ebay which are medium stiffness. Little more expensive than the ones VP posted though.

http://cgi.ebay.com/Bojo-Inc-Tool-Ki...item20af160d69
__________________
09 E90 M3 - Interlagos Blue / Black Novillo / Sycamore Anthracite / Eibach / HRE

808MGuy is online now  
0
Reply With Quote
      02-17-2010, 11:19 AM   #4
VP Electricity
Brigadier General
 
VP Electricity's Avatar
 
Drives: E91 XDrive
Join Date: Jan 2008
Location: portland oregon

Posts: 3,177
iTrader: (3)

Great point on the door pops - I did buy a bunch when I did my car. Forgot to put that in...

I did use a metal tool on the trunk panel...
VP Electricity is offline   United_States
0
Reply With Quote
      01-28-2012, 07:02 PM   #5
taibanl
Brigadier General
 
taibanl's Avatar
 
Drives: BMW
Join Date: Sep 2010
Location: NA

Posts: 3,434
iTrader: (4)

Front seat Bolts are T50, driver available at lowes $5
__________________
eBay: JBL MS-8 (goes live 21 Sep, runs through 28 Sep. $299 reserve)

Last edited by taibanl; 01-28-2012 at 09:09 PM.
taibanl is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 07:20 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST