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Change reversing light to fog light, can someone provide a quick guide please
Posted: Wed Apr 05, 2017 11:08 pm
by BTS
As per the title, I have read some people sacrifice the OSR reversing light and hook it up as a fog light, Is there a guide for this, I tried a search but couldn't find anything.... basically, which wires am I looking for to connect to the fog light switch.
TIA
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Wed Apr 05, 2017 11:17 pm
by Bob
If you already have a rear fog fitted you just need to take the wire off that and plumb into the new one.
If not you need to take a feed from the dipped heads and switch to the new lamp.
Geoff will explain better.

Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Wed Apr 05, 2017 11:33 pm
by BTS
No current rear fog fitted which did make me wonder how the importer got an MOT on it...
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Wed Apr 05, 2017 11:52 pm
by Bob
Hmm, one does wonder.
Simple job, though.
Spur from dipped head lamps to a switch with indicator light, run wire to rear lamp, disconnect wire from reversing light, fit red bulb and connect new wire. 30/45 Mins, give or take.

Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Thu Apr 06, 2017 10:15 am
by g8dhe
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sat Apr 08, 2017 8:22 pm
by BTS
Job done.. and fiddly back light bulb replaced..... regards
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sat Apr 08, 2017 8:27 pm
by Bob
Sound.

Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sat Apr 08, 2017 11:08 pm
by mikeonb4c
Bob wrote:Sound.

No Ben, it's light we're discussing DOH!

Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sat Apr 08, 2017 11:41 pm
by Bob
Bill, mate,
If you have some Somerset Chardonay you can do this in thee head:
http://makezine.com/2009/01/05/light-to ... r-circuit/

Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sun Apr 09, 2017 8:04 am
by sotal
This sounds great - we have one that dangles off the back bumper but it is for ever getting knocked.
Is it fully MOTable to have just one of them as a reversing light? Do you have to swap any particular one ie nearside or offside?
And is the option to drill a hole in the back of the cluster really worth it?
Thanks (and sorry for jumping on the post)
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sun Apr 09, 2017 8:25 am
by mikeonb4c
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sun Apr 09, 2017 8:43 am
by Bob
sotal wrote:This sounds great - we have one that dangles off the back bumper but it is for ever getting knocked.
Is it fully MOTable to have just one of them as a reversing light? Do you have to swap any particular one ie nearside or offside?
And is the option to drill a hole in the back of the cluster really worth it?
Thanks (and sorry for jumping on the post)
Pretty certain one reversing light is ok, not certain you need that.
You need to modify the o/s to be rear fog, it has to be on the centre line or to the off side of it.
If you just swap a reversing light I don't think you have to drill.
My MX5 came with this mod and its had 8 MOTs with us.

Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sun Apr 09, 2017 8:46 am
by BTS
Reversing lights are not part of an MOT, fog lights are and as above, no drilling required for this method.
There must be an illuminated switch, mine just has a little LED.
My wife has an MX5, it has one reversing light and one fog light as standard, factory fit...
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sun Apr 09, 2017 8:51 am
by sotal
Sounds easier just to swap one of the bulbs out then and patch in the wiring to it.
Last question then (I think!) - to save me looking are they offset or straight pins on the bulbs?
Re: Change reversing light to fog light, can someone provide a quick guide please
Posted: Sun Apr 09, 2017 9:00 am
by Bob
They'd be straight as there's only the one fillament.
