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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 04-12-2002, 08:15 AM   #1
Gray Goose 330ci
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Any DIY for foglights to be hardwired

Is there a way to hardwire the fogs to come on automatically when the regular xenon lights come on? Thanks.
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Old 04-12-2002, 09:22 AM   #2
.Gravedgr.
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I'm pretty sure a thread started on this on the old forums, or on ************* earlier in the week. The last post I remember was something along the lines of "you need to hardwire it to your low beams" or something like that. Not very helpful, but there could have been more.:smile:
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Old 04-12-2002, 09:42 AM   #3
PowerDrift
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It not hard to do, there are 2 ways of doing it

1) You can either tap the wire going into your low beams and connect it to your fog lights

or

2) You can rewire the car from your relays and fuse box. This method is a little harder, but much cleaner. I did this for my friend's e36 328i before, but its been too long for me to remember what I did exactly. It took me a while to trace the wiring back from the relays to the fuses. Take a look at the DIY instructions for fog light instruction for the e46 on the circle BMW site. It will give you a better idea of what is going on.

Basically, you will use the power coming from the relay of your lowbeams instead of using the relay for the fog lights. The ground stays the same.

I prefer method 2 since its easier to undo and maintain's the use of the fog light's fuse.

HTH
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Old 04-12-2002, 10:31 AM   #4
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One day I am hopping to be able to send K-bus messages - this gives a total control over all devices connected to the K-bus ( which includes the lights ).

Peter
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Old 04-12-2002, 10:43 AM   #5
.Gravedgr.
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Quote:
Originally posted by euroboy
One day I am hopping to be able to send K-bus messages - this gives a total control over all devices connected to the K-bus ( which includes the lights ).
WTF are K-bus messages? Is that like Morse code with your headlights?
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Old 04-12-2002, 11:13 AM   #6
euroboy
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When you press a switch on the steering wheel it now generates K-bus messages - most things are not hardwired in the car - they connect to a bus(es).

If you like to find out more, pick up a copy of the Bently E46 manual - great read ( about $80 ).

Peter
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Old 04-12-2002, 12:38 PM   #7
Gray Goose 330ci
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Quote:
Originally posted by euroboy
When you press a switch on the steering wheel it now generates K-bus messages - most things are not hardwired in the car - they connect to a bus(es).

If you like to find out more, pick up a copy of the Bently E46 manual - great read ( about $80 ).

Peter

So our cars have hidden electronic features which we may possibly unleash?
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