BMW Z3

Workshop

CLASSIC BMW  (RHD-UK)

 

 

Push-Start Switch Panel with Relay

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Replacing the Bearing

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Note: One recommends reading the diary first and then linking to workshop notes to maintain the continuity of the theme...

This is the switch combination I have decided on. This leaves 4 switches from the original delivery set up. I also have the fuse box Why the change? I preferred the switches to all illuminate on the panel and all to have covers, as to not to accidently switch them off during getting in and out of the vehicle, that is if it is possible with my setup? The covers also provides further protection to the push-start button. So! One can say there are a combination of reasons for the changes.
Instead of using one fuse box internally, there will be two, these will be repositioned to a new location under the dash. Fusebox 1, will be a direct circuit to Battery and 2, will be a live circuit from the Ignition circuit.

 

1

2

Ign.Switch Panel

Start Switch

WebCam Back

Radio 2

Battery Cut-Off

Dash USB-1

A/C Fan    - A

Radio 1

Exhaust Cut-Off

Running-Lights C

USB Hub

USB Dash-2

USB Console Bck

USB Console Frt

Accessory

Accessory

Accessory

Accessory

Fusebox 2 Ignition Supply

Fusebox 1 - Direct Battery Supply

Switch Designation

These two additional switches will be hidden adding to more security of the vehicle. They will not need to be illuminated.

Rear Panel Wiring

Switch Bulb Ground/earth 

Positive to Accessory

Relay Connections

C

C

C

Situated on Steering Column

1

Ignition Switch Panel

Start Switch

WebCam Front  B

WebCam Rear

Radio 2

Battery Cut-Off

Dash USB-1

A/C Fan   A

Jumper

Jumpers

Car Battery

Negative Earth  to Car Chassis or Battery

A

B

C

To Second Fuse Box

Direct Positve

Covering:

Fuel Cut-Off

A/C Fan
     A

WebCam
Front B

Running
Lights C

Battery Cut-Off D

Fuel Cut-Off E

Fuel Cut-Off

WebCam Front B

There are many out there like me, having little to no experience of wiring cars and from time to time; one comes across incomplete information from varied sources that just doesn't help. As for me, I am not an electrician by trade and therefore get by just!... So there is a need to find good and reliable sources on one's particular topic; this is unfortunately rare. However, a combination of information collectively can help to place the pieces together, so one needs to do a study. One will need to work out a diagram of sorts to the best of one's ability to fulfil one's needs. So this is my effort and new plan:

To make this less complicated I will just deal with the Push Start Panel and two of the switches that will go directly to Fusebox 1, (Direct Battery Current) as indicated above and the panel below.  (Note: Switches and Relays can be different, hopefully your setup is like the one described)...

illuminates

for LED

common Ground

Direct Battery Current

3 Post Switch

2 Post Switches

Note::

Note:

Note: Slightly Different Fusebox - No earth points
earth will be on the accessory

This Circuit will work, however there will be changes to the switch poarities

(For Larger Final Diagram)>>>

See Video on Next Page for Install Instruction: Video