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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 06-11-2006, 03:23 PM   #1 (permalink)
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Question Do you know what this is?

Today I've noticed that the plug displayed on the image below "clicks" when I turn my key. The clicks don't have a pattern, but I hear a click every 1 to 5 sec. I guess it's a relais but does anybody know what for?

I'm guessing the the clicks aren't normal. I've never noticed it before.

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Old 06-11-2006, 04:00 PM   #2 (permalink)
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Question

I've been listening again. The interval seems to be more consistent and each time there are 2 clicks. I guess I've not been listening very well

I've tried to unpug it, but I can't get my hand there to unplug it.
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Old 06-11-2006, 05:16 PM   #3 (permalink)
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If you dont know... dont touch!!! lol, i never mess with things i dont know about...
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Old 06-11-2006, 09:38 PM   #4 (permalink)
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i cant really tell by the pic, but it looks like the wires may be frayed??? could it be a spark that they are making by hitting?? which could be bad...
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Old 06-12-2006, 01:09 AM   #5 (permalink)
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this is a heater valve. they are pretty expensive to change out. i changed mine out due to that weird clicking noise but no change. dont waste your money. plus it is a pain in the ass to get to replace.
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Old 06-21-2006, 07:58 PM   #6 (permalink)
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Quote:
Originally Posted by polaris448
this is a heater valve. they are pretty expensive to change out. i changed mine out due to that weird clicking noise but no change. dont waste your money. plus it is a pain in the ass to get to replace.
heater valve? what does this do?
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Old 06-21-2006, 11:18 PM   #7 (permalink)
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regulates how much heat or heated coolant travels to the heater core to heat your car. i usually hear this clicking the most when it is 45-55 degrees outside.
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Old 06-22-2006, 10:37 AM   #8 (permalink)
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Yes, it is the heater valve. You can get one on eBay for cheap, compared to the $150 it will cost you elsewhere. I bought mine new, but I haven't had the chance to put it in. Mine has been clicking for about a year without giving me any troubles.

If polaris changed his out and saw no change, I am starting to think I wasted my money.
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Old 06-24-2006, 12:54 AM   #9 (permalink)
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I'm having a problem with cabin heat, I only get very hot air when the throttle is open considerably. It use to be able to put out amazingly hot air, but it's diminished over the past year. My AC has become incraesingly not cold, but that's another story probably due to a huge ass leak in one of my 134-a lines somewhere. I just filled the bastard 3 months ago :/

My cooling system still may need to be bled some more - I just put in my 3rd thermostat and flushed my coolant, but I wonder if this part is a common problem.
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