Sensor in front of radiator?

Panzer23 · 07-24-2019, 11:23 AM

Hello all,

I was replacing my headlight, and with the bumper off I found this:
https://photos.app.goo.gl/yTXTW2UC4y6jkpQF7 I've been trolling around this forum, realoem, etc and I haven't found my answer yet, so I'm hoping someone will be able to help me identify whats supposed to be plugged into this connector...

Name: mystery connector IMG_20190715_184242.jpg
Views: 884
Size: 146.9 KB

Name: mystery connector IMG_20190715_184242.jpg
Views: 884
Size: 146.9 KB

Thanks in advance!

dtla1 · 07-24-2019, 11:31 AM

I think that might be the heater line/thing for the crank case vent hose. Do you have a catch can installed?

Panzer23 · 07-24-2019, 03:00 PM

Quote:

I think that might be the heater line/thing for the crank case vent hose. Do you have a catch can installed?

Nope, as stock as stock can be!

MightyMouseTech · 07-24-2019, 04:48 PM

Quote:

Originally Posted by dtla1

I think that might be the heater line/thing for the crank case vent hose. Do you have a catch can installed?

That plug is much smaller.

Is the picture through where the kidney grill is?

Looks like the hood latch switch wiring.

dtla1 · 07-24-2019, 05:05 PM

Quote:

Originally Posted by MightyMouseTech

That plug is much smaller.

Is the picture through where the kidney grill is?

Looks like the hood latch switch wiring.

I think you're right sir, plus, I'm not one too doubt you very often Mr. MightyMouse

Panzer23 · 07-25-2019, 10:45 AM

Quote:

That plug is much smaller.

Is the picture through where the kidney grill is?

Looks like the hood latch switch wiring.

Yup! That looks like the culprit. What is it used for? and why would mine be unplugged, but not showing any errors when im driving around?

Thanks very much for the help! I knew I could count on this group!

dtla1 · 07-25-2019, 10:51 AM

Quote:

Originally Posted by Panzer23

Yup! That looks like the culprit. What is it used for? and why would mine be unplugged, but not showing any errors when im driving around?

Thanks very much for the help! I knew I could count on this group!

Yeah I never knew this was here earlier. I could only imagine it's used for showing a warning if hood is open and you're above a certain speed but I've never done that, or heard of anyone mentioning this... ? idk.

MightyMouseTech · 07-25-2019, 01:52 PM

With the wiring unplugged, the car just thinks the hood is always closed. Maybe previous owner was having faults with the switch.

07-24-2019, 11:23 AM	#1
Panzer23 New Member 0 Rep 6 Posts Drives: BMW 135i Join Date: Jul 2013 Location: Boston iTrader: (0) Garage List 2009 BMW 135i [0.00]	Sensor in front of radiator? Hello all, I was replacing my headlight, and with the bumper off I found this: https://photos.app.goo.gl/yTXTW2UC4y6jkpQF7 I've been trolling around this forum, realoem, etc and I haven't found my answer yet, so I'm hoping someone will be able to help me identify whats supposed to be plugged into this connector... Thanks in advance!
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07-24-2019, 11:31 AM	#2
dtla1 Colonel 833 Rep 2,234 Posts Drives: 2011 135i, Space Grey Join Date: Apr 2014 Location: Silicon Valley iTrader: (2)	I think that might be the heater line/thing for the crank case vent hose. Do you have a catch can installed?
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07-25-2019, 01:52 PM	#8
MightyMouseTech Major General 4393 Rep 6,202 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	With the wiring unplugged, the car just thinks the hood is always closed. Maybe previous owner was having faults with the switch.
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