Cluster M3 LED Retrofitting

There is a method of "modifying" a normal E46 Cluster to have the M3-LEDs.

Its a hardware mod, so here is a small list of things which you will need:

1x TPIC6C595DR(Shift register)

1x CML0805X7R104KT50V (CAP, X7R, 0805, 0.1UF, 10%, 50V )

10x RMCF1206JT160R ( RES 160 OHM 5% 1/4W 1206 )

3x RED LEDs 3528 PLCC2

7x Yellow LEDs 3528 PLCC2

Parts can be ordered at digikey, however feel free to order it where ever you want.

Modification Tutorial:

1. Disassemble your cluster

2. Solder the Shift register(Green in Picture) first. It has same polarity as the shift register left to it. Just solder it like in the picture

3. Solder the Cap(Purpe) next. Polarity does not matter

4. Solder the Resistors(Blue) next. Polarity does not matter

5. Finally solder the LEDs next. Red means yellow led, yellow means red LED - sorry for the misleading colors. Polarity is important here and GND is marked with the Black color.

6. Assemble the cluster back