Rear Fog Light Installed

27 08 2012

My main birthday present this year was a full day of working on the kombi – with my lovely wife taking care of our baby-daughter all day so that daddy can play with the car. Time becomes precious with a baby. So Saturday morning I started the day with a visit to the car wash and the petrol station. With all dust and dirt washed away Taiga Lily was beaming again in the sun of a beautiful Berlin summer day.

Taiga Lily all shiny and clean. Extreme parking in Berlin – sliding door as the only way to leave the car…

Most of the day then went into installing a rear fog light. I bought an old-school looking one to go with the car, a beautiful little Hella fog light with a chrome-coated heavy metal casing. I also dug out an original VW bus rear fog light switch which I had carried around for the last 15 years. I believe I got it in the mid-nineties at a local Volkswagen dealership as a regular spare part. Has “Made in Germany” on it and not “Made in West Germany”, so must be post 1990. I was told these switches have become quite rare in the meantime. It happens to be from the same German company Hella, but has a VW spare part number on it, too (111 963 105A). It is a simple on-off switch with three connections, labeled “A”, “30” and “31”. “A” goes to the fog light in the back, “31” is connected to earth. I connected it to the central “earth point” under the dashboard, in front/under the windscreen wiper motor. “30” comes from the left front low beam. This way the rear fog light can only be switched on when the front lights are on, which I believe is the legal requirement in Germany. Following a repair manual, in a 1976 kombi with a 2L engine like Taiga Lily this is the yellow wire coming from/going into the left front lamp.

Hella Rear Fog Light

Volkswagen fog light switch, with instructions from the Hella fog light.

For the connection from the front switch to the back of the car, I used the second wire of a seven-core cable installed some two years ago between the dashboard and the engine bay. So I just had to extend it to the light: I drilled a hole in the floor behind the left rear lights to get the cable out to the fog light, and rust-protected the fresh metal surfaces. There was already a hole in the rear bumper under the left rear light, so no need here to add more holes to the car. In the engine bay I threaded the wire through a black cable sleeving so that it all looks a bit neater and cannot rub on the metal where it goes through the floor. No need for any connection to earth. The light’s metal body is in direct contact with the metal bumper and thus the car. Et voila – we have fog light!

Fog light installed and connected.

At the end of a long day: It works!

PS: If you wanted to add a rear for light to front fog lights you would need combination switch. A beautiful work-around for that one is the main light switch of a T2b with its two positions, parking light and low beam, which can be used as switches for “front fog lights only” and “front and rear fog lights”. A friend and electrician helped me set up that solution in the Old Lady in 1995.


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22 11 2013
More Switches! | Campervan Crazy

[…] of the car that I kept all cables in place and have the switch now more for decoration. With the rear fog light switch installed in August 2012, there is now a really nice battery of these old pull switches. Love […]

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