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Discussion Starter · #1 ·
Does any one know what size/type of diodes I would need to allow me to use the centre brake light as a fog light, but still allow me to use it as a brake light when fog not required.

Cheers

Jeff
 

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Yes, don't do it, seems a mad way, especially as if it's on as fog and you brake it'll just be like 3 brake lights, much better to do the driver side reverse light mod.
 

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you cant use the centre light as a fog. Its an mot fail, and makes you look like a motorcycle.

2 amp general servive diode should be fine, but i would go bigger so it dont run hot. It will need two though. One to protect both circuits or they will have two fuses powering them which is beyond the wireings ability
 

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you cant use the centre light as a fog. Its an mot fail, and makes you look like a motorcycle.

2 amp general servive diode should be fine, but i would go bigger so it dont run hot. It will need two though. One to protect both circuits or they will have two fuses powering them which is beyond the wireings ability
mine has used the centre brake light as the fog light and never failed an mot!!
 

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Tisnt an Mot fail, how neat to the centres are the jap import ones?!!, And several cars with centre ones on and centre ones in rear screens aswell, but I would go with either the bootlight or the reverse light but would only have single use, a lot of faffing about to use as both still..and I'll challenge anyone to tell me in thick fog by seeing the fog light they can tell it's a car or a bike due to position when you can't even see the vehicle!
 

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Discussion Starter · #7 ·
Tisnt an Mot fail, how neat to the centres are the jap import ones?!!, And several cars with centre ones on and centre ones in rear screens aswell, but I would go with either the bootlight or the reverse light but would only have single use, a lot of faffing about to use as both still..and I'll challenge anyone to tell me in thick fog by seeing the fog light they can tell it's a car or a bike due to position when you can't even see the vehicle!
A friend of mine who ran a eunos import for about 10 years before he bought a mk3, who was an mot tester now retired, had his centre brake light wired up solely as a fog. He said its all about the interpritation of the wording in the mot manual, he said a car must have a working brake light on both sides of the car and if a high level break light is fitted then it must work, his interpritation was that if the high level break light was wired as a fog, it was not a break light, and so did not have to function as such. And to quote him he said " I never failed my car for it"

Jeff
 
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