Hi
I am re-wiring parts of my C303, and decided to make a new version of the wiring diagram in colour as the black and white one is confusing.
Does anyone want to proof read it? Once I am happy it is accurate I will share it somehow as a PDF.
The diagram has the following zones, each in a different colour:
- All
- engine
- dashboard
- wipers
- drive control
- horn
- trailer connection
- heating
- Radio car engine area mods

Each zone can also be viewed alone or with other zones

If you want to proof read it, please send me you email address in a DM.

Thanks
Paul

LATEST VERSION V1.01 23/2/2025
https://www.mediafire.com/file/l49yg7yelhabgj4/C303_wiring_diagram_v1_01.pdf/file

Hopefully this screenshot shows how it looks

Please message me an email address and I will send a pdf. I would appreciate any corrections and other suggestions. Thanks.

A quick update for those checking this:
I think I have replied to everyone who has asked for a copy to check - please nudge me if I haven't.
Today you should have latest version (filename 'C303 wiring diagram(5).pdf')

- Colour key added
- Parts numbers all corrected
- Horn circuit is checked by Huom
- Drive circuit is checked and corrected by Huom
- Parts key is translated into English
- I have a parts key machine translated into Dutch if anyone wants to check that?!

Thanks, Paul.

A quick note:
I am going to stop sending out the plan for now - it is still be checked by members of this forum to make sure it is accurate. I don't want the plans to be treated as final as it could cause damage to your c303.
I think this will be finished in the next few days. Then I am happy to send it out everywhere.

There is one exception.... if you want to check the lighting diagram (for some reason, no one has volunteered to do this one      ) then I will send you a copy!

Thanks very much

Hi - here is the latest version of the wiring diagram Version 1.01
Thanks to all the forum members who helped with this.
Feedback and corrections always welcome.

https://www.mediafire.com/file/l49yg7yelhabgj4/C303_wiring_diagram_v1_01.pdf/file