Horn when removing airbag from steering wheel

BMWILUVU · 11-17-2017, 08:51 AM

Hello. I am trying to remove the steering wheel in an F30.
Is the horn supposed to blast when you insert the screwdriver into the holes under the steering wheel to bend the spring clips holding in the airbag?

Uber Commuter · 11-17-2017, 09:04 AM

When you insert the screwdriver; you are pulling the airbag backwards by moving the spring clip; in other words compressing the connectors for the horn.

Yes; it will sound when you do that.

Pull the fuse first so you don't have any airbag accidents.

Bestodabest · 11-17-2017, 11:17 AM

Should disconnect the battery when working on SRS components.

Orion4 · 11-17-2017, 12:00 PM

You should be disconnecting the Battery any time your removing or working with or around an Airbag system. Things go boom!!

BMWILUVU · 11-17-2017, 12:24 PM

I will disconnect the battery next time. I just wanted to make sure it was not shorting out or something else because just touching the screwdriver against the clip or something near it caused the horn to blast which I thought was odd.

madmonkey · 11-17-2017, 02:08 PM

Nothing is more surprising than an airbag going off in your face because you didn't disconnect the battery first...

Side benefit - horn doesn't beep when you take airbag out

Orion4 · 11-18-2017, 12:02 PM

The horn is a contact switch configuration. You are completing the circuit with the screwdriver- Result- "HONK"

11-17-2017, 08:51 AM	#1
BMWILUVU Lieutenant Colonel 809 Rep 1,597 Posts Drives: 340ix Join Date: Mar 2017 Location: The Boibs iTrader: (0)	Horn when removing airbag from steering wheel Hello. I am trying to remove the steering wheel in an F30. Is the horn supposed to blast when you insert the screwdriver into the holes under the steering wheel to bend the spring clips holding in the airbag?
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11-17-2017, 09:04 AM	#2
Uber Commuter Lieutenant 722 Rep 474 Posts Drives: 2014 328D xDrive Join Date: Feb 2017 Location: Maryland iTrader: (0) Garage List 2014 BMW 328d xDrive [0.00]	When you insert the screwdriver; you are pulling the airbag backwards by moving the spring clip; in other words compressing the connectors for the horn. Yes; it will sound when you do that. Pull the fuse first so you don't have any airbag accidents.
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11-17-2017, 11:17 AM	#3
Bestodabest Private First Class 37 Rep 122 Posts Drives: 2014 435i Xdrive Join Date: Apr 2017 Location: Toronto iTrader: (0)	Should disconnect the battery when working on SRS components.
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11-17-2017, 12:00 PM	#4
Orion4 Lieutenant Colonel 481 Rep 1,572 Posts Drives: 2013 335i Sport Line Sedan Join Date: Aug 2009 Location: Melbourne, FL iTrader: (0)	You should be disconnecting the Battery any time your removing or working with or around an Airbag system. Things go boom!!
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11-17-2017, 12:24 PM	#5
BMWILUVU Lieutenant Colonel 809 Rep 1,597 Posts Drives: 340ix Join Date: Mar 2017 Location: The Boibs iTrader: (0)	I will disconnect the battery next time. I just wanted to make sure it was not shorting out or something else because just touching the screwdriver against the clip or something near it caused the horn to blast which I thought was odd.
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11-17-2017, 02:08 PM	#6
madmonkey Lieutenant 200 Rep 536 Posts Drives: 2013 335xi Alpine White Join Date: May 2010 Location: GTA iTrader: (3) Garage List 2013 335i xDrive [0.00]	Nothing is more surprising than an airbag going off in your face because you didn't disconnect the battery first... Side benefit - horn doesn't beep when you take airbag out
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11-18-2017, 12:02 PM	#7
Orion4 Lieutenant Colonel 481 Rep 1,572 Posts Drives: 2013 335i Sport Line Sedan Join Date: Aug 2009 Location: Melbourne, FL iTrader: (0)	The horn is a contact switch configuration. You are completing the circuit with the screwdriver- Result- "HONK"
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