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How to build a Z3 dual arm rest
April 2, 2000
By: Ed Bansch
Start by collecting all parts and tools you will need. Here is the list.
- Cup holder assembly BMW part # 82-11-1-469-516
- 1 pair of 2"x 3/4" hinges. National or simuilar with removeable pin in brass or silver (your choice). Home Depot # 218-995 (brass) # 218-979 (silver)
- 1-Grip clip. Home Depot # 201-739, 4 to a package, only need one.
- 1-7/8" dia. bumper. Home Depot 3 524-062, 4 to a package,only need one. Black if you can find it but I couldn't.
- 1- 8"x 11" sheet of felt (or less) with sticky back. Color of your choice. I got mine at Rag Shop in black, two sheets to a package. Home Depot -Felt Gard # 423-234. Choice of biege or brown in medium and heavy grade. I suggest medium.
- Opinional. Plastic dip. Available at Home Depot in red, yellow and blue. I used black and got mine at local hardware and also available from Harbor Freight. This is to coat brown bumper black or cover exposed nut and lock washer in non- rivet, non-covered lid. Note: you can get away without plastic dip if you chose to leave bumper brown or paint it. But you should use it on non-nut rivet installations.
- 1-Machine screw (1 1/2" 10-24 thread) slotted round head in brass or silver (your choice)
- 3- 10-24 nuts and 3- #10 lock washers (color match)
- Loc-tite or Permatex nut lock (permanent type) only for non rivet nut installations. READ ON FOR MORE INFO ON THIS TYPE INSTALLATION.
- Styrofoam ( the softer white that comes with everything. Not the harder flower arrangement stuff.)
***Part #'s are for reference only. Please make sure you get what is described.
Tools
- Drill
- 3/16" and 17/64" possibly 11/64" drill bits
- Normal rivet gun
- package of 3/16" with 1/4" bite aluminum rivets
- *Rivet nut gun - This can be gotten via Harbor Freight for $20.00. It is a cheap(er) version of one that is available at Napa car stores for $114.00. Both come with the 10-24 nut rivet you will use.
- Razor knife
- Scissors
- Hacksaw with blade
For cupholder assembly removeal and installation:
- Allen wrench
- Metric or adjustable wrench
* I'll tell you how to do it without this tool but it is much better with nut rivet!
Let's Make It 
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