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#1 Electrical Wiring and harnesses for Ser 11 1970.
Posted: Thu Oct 30, 2025 9:21 pm
by gerry59
Hi Guy's
Looking to rewire my Ser 11, would appreciate some info on anyone who know;s off any good suppliers, or individual auto electricians who specialise in rewiring harnesses or with wiring kits for engine bay and dash.
Thanks
Gerry.
#2 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 9:09 am
by tim wood
I’m planning to rewire mine over winter (time and weather permitting) like most I will use Autosparks for the harness items. They can also provide a booklet showing the colour coding etc for each of the connections.
This is very useful.
Autosparks website is clear on what you may need.
In the technical section of this forum are several wiring diagrams.
What you will find extremely useful is a copy of the guide produced by (I think) Mike Cassidy) which was in the e type club magazine some time ago and may also be in the technical section of the forum.
Tim
#3 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 11:39 am
by DWW
#4 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 12:58 pm
by mgcjag
Danny...thats a S1 drawing......Steve
#5 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 2:26 pm
by DWW
Well that is all I got, how different is the S2?

#6 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 4:39 pm
by MSM
Gerry
I can strongly recommend the wiring diagrams book produced by Coventry Auto Components if you are going to DIY.
https://coventryautocomponents.co.uk/st ... es-2-etype
You will wonder how you managed without it!
#7 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 5:27 pm
by Gfhug
DWW wrote: ↑Fri Oct 31, 2025 2:26 pm
Well that is all I got, how different is the S2?
Danny, have a look in the knowledge section to see the other wiring diagrams and the differences. Similar but different.

Gerry can find them there but the Coventry Auto Components’ ones Mike points to are very beneficial as they separate out into each circuit.
Geoff
#8 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 7:16 pm
by gerry59
Thank's Guy's for your input, I will certainly take all that info onboard and look up some of those
books and the diagram's
Cheers
Gerry
#9 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Fri Oct 31, 2025 8:24 pm
by Gfhug
#10 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Sat Nov 01, 2025 12:52 pm
by tim wood
I’ve just checked the link in the forum technical section regarding how to rewire but this link doesn’t work any longer.
It’s mainly focused on L to R conversion but has a great deal of useful and I would say essential information.
If you wish I have a PDF copy I could email you - just send me a PM with your email address.
Steve— if this causes any issues with copyright etc please advise
Tim
#11 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Wed Nov 05, 2025 11:34 am
by chrisvine
Gerry,
Just be aware that in late ‘69, the S2 wiring was changed to incorporate the ballast resistor:
http://etype.chrisvine.com/wp-content/u ... oom015.JPG
Also the ignition relay’s position changed right at the end of the S2 production run where it was moved to the bulkhead just behind & above the pedal box.
I think Autosparks also provide a mini-loom for this change but might not be included in the normal S2 wiring set unless requested.
Chris
#12 Re: Electrical Wiring and harnesses for Ser 11 1970.
Posted: Wed Nov 12, 2025 9:27 pm
by gerry59
Thank's Chris
I got a booklet from Coventry Autos, but thanks for your help.
Cheers.