18 Button On Board Computer OBC Upgrade?

[BMRBOI 8]

Hi there in my e36 325i i have a 7 button on board computer, was looking through ebay and they have an 18 button conversion kit. i have a 18 button computer and the indicator stalk aswell, does anyone have the loom which they plug into? also how hard would it be to install it? worth the effort or nah?

http://cgi.ebay.com/ebaymotors/BMW-E36-18-...sQ5fAccessories

[jochen 4]

Hi there in my e36 325i i have a 7 button on board computer, was looking through ebay and they have an 18 button conversion kit. i have a 18 button computer and the indicator stalk aswell, does anyone have the loom which they plug into? also how hard would it be to install it? worth the effort or nah?

http://cgi.ebay.com/ebaymotors/BMW-E36-18-...sQ5fAccessories

It's always worth it if you want to do it.

Having the wiring diagrams in front of me let's compare the two modules:

Old = Multi Function Clock, 6113.2 -> I'll call this CLK

New = On Board Display, 6214.0 -> I'll call this OBD

Power & Illumination connections

Pin 1 = BRAKE-TEST signal (connect to gnd when brake pressed) = only OBD

Pin 2 = BRAKE signal from brake pedal = same for CLK & OBD

Pin 3 = LAC lamp activation check (?) = same for CLK & OBD

Pin 4 = DATA = data signal = same for CLK & OBD

Pin 5 = CLK = clock signal = same for CLK & OBD

Pin 6 = CHECK licght connection = same for CLK & OBD

Pin 8 = Power in START = same for CLK & OBD

Pin 9 = Power in Run & Start from F23 = same for CLK & OBD

Pin 10 = Chime Module 1 = only CLK

Pin 11 = Chime Module 2 = only CLK

Pin 12 = Outside air temperature sensor = only CLK

Pin 13 = Speed signal from instrument cluster = only CLK

Pin 14 = Power in Acc, Run & Start = same for CLK & OBD

Pin 15 = Data signal from instrument cluster = only CLK

Pin 16 = Illumination from Light Switch = same for CLK & OBD

Pin 17 = Ground = same for CLK & OBD

Pin 18 = permanent power from F31 = same for CLK & OBD

So it looks like the Multi-Function Clock is the more complex of the two

The connectors are identical, so simply plug the new unit in

Then look at the wires and see what you are missing. My guess is:

1. Outside air temp sensor - so add the sensor and the one wire to make it work.

2. Brake Test signal - you may need a different brake switch for this

3. Data and speed from instrument cluster - add these wires

4. Chime - add these wires, and the chime module if not fitted

So the only things that won't work immediately are clock, chime, speed and data from instrument cluster

everything else will work.

[JaseNZ 53]

Here is a full diy on doing it, has instructions for both 7 and 11 button units, I was going to do it myself but cannot find the 18 button and stalk at a reasonable price.

>>Click here <<

[Kaz 50]

I'm pretty tempted to do this when I can afford it as well. I want the hidden functions!

[Brad-325i 2]

I'm pretty tempted to do this when I can afford it as well. I want the hidden functions!

What are the benefits of doing this?? lol what hidden functions?