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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Sun, Jun-22-2008, 01:54:55 PM   #1
RoodAwakening
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Default Please help: Left turn signal

As my "Euro Clear PI(T)A" thread stated, I've been plagued with electrical gremlins of all sorts ever since I swapped out the OEM ambers for Euro Clears. I was able to eliminate most of them by swapping out blown fuses in 23, 34, and (I think) 37. With that said, why would I blow fuses swapping out the lenses if the bulbs were the correct ones (i.e., they now work without switching out locations)?

Now the one remaining electrical problem: My left turn signals do not work. That means the front, sidemarker, and back turn signals are out. The green left arrow on the dashboard is out, too. That leads me to believe the switch (relay?) got fried. So my question is this: Where are the electronics associated with the turn signals? I'm hoping you'll tell me they're in the engine bay because I don't want to have to tear my whole dashboard apart.

If someone knows, please take a picture and send it my way.

I wish I had just gone with OEM. This "simple" installation has led to two+ days of wasted time and energy.
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Old Sun, Jun-22-2008, 06:18:56 PM   #2
RoodAwakening
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No one?
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Old Sun, Jun-22-2008, 06:24:00 PM   #3
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Wish I could help, but I've never ran into this before .. maybe this will help though.

Looked around and I don't see a relay specifically referencing turn signals, but your relays are in the same box as your fuses, which is in the engine bay at the rear corner (I think driver's side, but I forget and I'm about 600mi away from my E36 )



Should be a label in there stating what each fuse is as well .. but sounds like you've already been in the fuse box. No clue where all the other electronics are that are associated with turn signals ..
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Old Sun, Jun-22-2008, 06:29:05 PM   #4
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There are multiple ways (at least the way my car is wired) to connect the turn signal. There are 3 pins that need to be wired. One controls the turn signal and then one controls the parking lights, and on the is ground. Not sure on the voltages of the pins.

The fog lights should be unrelated to this issue - unless you did something else to them. Did you turn the foglights off in the cabin? The green light on the dash will be on regardless of if your foglights are working.

Check all the fuses related to lighting as well. The fuse box is on the driver's side of the engine compartment.

It could just be a coincidence that the foglight dash bulb burned out at the same time as you install.
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Old Sun, Jun-22-2008, 08:34:39 PM   #5
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I think I found it. As SOnik stated, it was in the fuse box. It's a relay labeled "2/4 x 21W + 0-5W" and it has part number 1 388 533. It's number 7 in the diagram below.

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Old Sun, Jun-22-2008, 08:38:21 PM   #6
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Did you go with OEM clears or aftermarket clears??
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Old Sun, Jun-22-2008, 08:39:05 PM   #7
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Here's one from BavAuto but it doesn't have the same part number. Maybe that's because the OEM model was made by Siemens and the one from BavAuto is not. The damn thing is $49! A couple more dollars and I could have had the OEM clears which wouldn't have blown the relay in the first place.

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Old Wed, May-06-2009, 07:29:04 PM   #8
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Quote:
Originally Posted by RoodAwakening View Post
Here's one from BavAuto but it doesn't have the same part number. Maybe that's because the OEM model was made by Siemens and the one from BavAuto is not. The damn thing is $49! A couple more dollars and I could have had the OEM clears which wouldn't have blown the relay in the first place.

Did this ever fix your problem?
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Old Wed, May-06-2009, 07:46:45 PM   #9
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that sounds like a case of crappy lights, bad bulbs and confusion.
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Old Wed, May-06-2009, 11:55:03 PM   #10
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How much did you 'save' by not going OEM?
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Discussing Please help: Left turn signal in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)