E28 Blade Fuse Retrofit Kit Install Walkthrough

Installation tips and tricks for the Holy Grail Labs E28 Blade Fuse Retrofit Kits - avoid the melty! Also compatible with BMW E24, E23, and E12 models.
Available for purchase at HolyGrailLabs.com

[@JoseHernandez-kq9kx]

This piece is literally a holy grail

[@tctclmchnc2501]

The cardboard color code card fell apart instantly on me and was basically useless since it was faded and I'm partially colorblind. I used a sharpie and numbered/ dashed all wires/ connectors from left to right, bottom row first. Wrote the corresponding numbers on the blades of the new retrofit board. Each row of connectors was then taped together and labeled in numbered order with half width electric tape. Before disconnecting each row, pictures were taken to verify wire color and pin location. The old terminals did not come out easy. I figured out a process for removing them worked great with little effort. I broke off the springy tabs that hold the fuse ends with linesman pliers. Used a small flat blade screwdriver and wedged it between the plastic and the leftover U (or L) shaped part of the terminal that protrudes through the back. Used the screw driver to split them down the middle and bend the leftover tabs up. Broke off the excess sticking up, then the blades were easily pulled out through the bottom. This way you don't have to force the "teeth" on the spade part of the terminal up through the plastic. Found a toasted 12v feed and auxiliary fan wire, repaired that while in there. Now my AC doesn't melt fuses on hot days and my sunroof finally works. Thank you!

[@alhamedi66]

You do good work upload all videos for e28. I'm subscribed

[@rickeickhoff4989]

Nice video - very helpful !

[@adonisp]

Any plans to do an E21 retrofit walkthrough? Great video!

[@holygraillabs]

We'd love to do one, but we don't have an E21 handy. Sorry!

[@Rawvicious]

Just bought mine!

[@brandonheinold1863]

28:28 was the point where I Dremeled out the underside

[@alhamedi66]

Which pin you fixed Erath black wire