This is a simple and cheap way to mount the V1 Concealed Display at the base of the instrument cluster. This works on my 2007 335xi, but I would think it would work for many other models.
The idea is to mount the display on a 2-inch paper binding clip.
Advantages: Cheap, easy, and IMHO, the ideal location for the display.
Disadvantages: I don't know the long term effects of the binding clip on the instrument cluster rim.
The 1st photo shows the results. At least from where I sit, the oil temp is not as blocked as this photo shows.
The 2nd photo shows how the binding clip is mounted on the rim of the instrument cluster.
The 3rd photo shows the parts required, along with the final result. Parts required:
- 1 2-inch widepaper binding clip
- 2 #6-32 1/2" machine screws, nuts, and lock washers
The 4th photo shows the binding clip mounted on the back of the display.
1) Using heavy wire cutters, cut off the handles of the binding clip.
2) Using the display's back piece as a template, mark and drill two holes into the binding clip. The holes should be large enough for the #6 screws to pass through. You will probably need a drill press, set at very high speed (say 3000 rpm), with good (HSS) bits. The clip's steel is very strong! Also, have the clip straddle a piece of 3/4" wood stock as you drill.
3) De-burr the holes using a metal file.
4) Pass the screws + lock washers through the display's back piece. Install the back piece onto the display. The washers will help hold the screws when you tighten the nuts in the next step, as you won't have access to the screw heads.
5) Put the binding clip on over the protruding screws, followed by the nuts (see last photo). You'll need needle nose pliers and some patience to thread the nuts onto the screws. It's easy to tighten the nuts by prying a nut driver into the clip's jaws.
6) To mount the clip onto the instrument cluster rim, you'll need to pry open the clip's jaws and slide it onto the rim. I use the nut driver to pry open the jaws, or the handle of a small socket wrench. You can remove the display without any tools.
For my V1, I used the fuse box wiring described at:
To run the wire from the fuse box to the concealed display, I used the great description here: