Airbag Light

DSGLightning · 06-21-2011, 05:00 PM

I'm having a problem getting the airbag light and seatbelt light to go out. It was in a wreck that deployed the driver airbag so I replaced the airbag, clockspring, driver tensioner along with the rear tensioners. The code won't clear using my Bavarian Tool because it says there is a fault in the left rear tensioner. I thought well maybe I got a defective tensioner so I swapped sides to check but it still said the left rear fault.

Does anybody have a direction to point me? Does the computer really need to be replaced? I hear both ways.

Thanks

castell9 · 06-27-2011, 05:30 AM

subscribed...

kar40980 · 06-27-2011, 11:43 AM

We're talking about the buckle under the rear seat right? I run a collision shop and we change alot of these. Usually you can tell if there bad by just looking at them, they'll be all scunched up looking. I believe the oem part number is 72116975363 or could be 72117211595 but I think the second is for jap cars not sure without vin#. I also have BT tool and its never steered me wrong.

rosskie · 06-27-2011, 03:11 PM

did u replace the battery airbag?

DSGLightning · 06-28-2011, 05:12 PM

Quote:

Originally Posted by kar40980

We're talking about the buckle under the rear seat right? I run a collision shop and we change alot of these. Usually you can tell if there bad by just looking at them, they'll be all scunched up looking. I believe the oem part number is 72116975363 or could be 72117211595 but I think the second is for jap cars not sure without vin#. I also have BT tool and its never steered me wrong.

Yes, both tensioners were bad so I replaced them with 2 brand new ones but its still giving me a fault according to my BT tool.

DSGLightning · 06-28-2011, 05:14 PM

Quote:

Originally Posted by rosskie

did u replace the battery airbag?

Yes I also replaced the positive battery terminal.

kar40980 · 06-29-2011, 01:01 PM

Hmm, must be in the socket that connects to the left buckle. Does it look melted at all?
If not, a continuity test back to the air bag module will tell you if the wiring is good.

smallseafishie · 06-29-2011, 01:11 PM

sorry to be slightly off topic but is it pretty much a sure bet that the drivers seat tensioners will be bad if the drivers airbag was deployed?

DSGLightning · 02-02-2012, 08:31 PM

Update:

I had the airbag module reset from all the crash data and that didn't help. I don't see any melted wires. After messing with it for an hour I am now getting rear left and rear right seat belt tensioner faults. My BT Tool is giving me a .16 ohm reading in the left and .24 ohm reading in the right. It should be in the range of .64 ohms according to the front tensioners. The rear seat belt tensioners are new.

Please Help!

06-21-2011, 05:00 PM	#1
DSGLightning New Member 3 Rep 12 Posts Drives: 2006 330i Join Date: Jun 2011 Location: Tulsa, OK iTrader: (0)	Airbag Light I'm having a problem getting the airbag light and seatbelt light to go out. It was in a wreck that deployed the driver airbag so I replaced the airbag, clockspring, driver tensioner along with the rear tensioners. The code won't clear using my Bavarian Tool because it says there is a fault in the left rear tensioner. I thought well maybe I got a defective tensioner so I swapped sides to check but it still said the left rear fault. Does anybody have a direction to point me? Does the computer really need to be replaced? I hear both ways. Thanks
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06-27-2011, 05:30 AM	#2
castell9 Enlisted Member 8 Rep 39 Posts Drives: e90 335i Join Date: May 2011 Location: San Diego, CA iTrader: (0)	subscribed...
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06-27-2011, 11:43 AM	#3
kar40980 Enlisted Member 6 Rep 39 Posts Drives: 2007 335i/2011 328i Join Date: Jun 2011 Location: Buffalo, Ny iTrader: (2)	We're talking about the buckle under the rear seat right? I run a collision shop and we change alot of these. Usually you can tell if there bad by just looking at them, they'll be all scunched up looking. I believe the oem part number is 72116975363 or could be 72117211595 but I think the second is for jap cars not sure without vin#. I also have BT tool and its never steered me wrong.
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06-27-2011, 03:11 PM	#4
rosskie Major 34 Rep 1,118 Posts Drives: 335 Join Date: Sep 2010 Location: albany or iTrader: (11)	did u replace the battery airbag?
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06-29-2011, 01:01 PM	#7
kar40980 Enlisted Member 6 Rep 39 Posts Drives: 2007 335i/2011 328i Join Date: Jun 2011 Location: Buffalo, Ny iTrader: (2)	Hmm, must be in the socket that connects to the left buckle. Does it look melted at all? If not, a continuity test back to the air bag module will tell you if the wiring is good.
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06-29-2011, 01:11 PM	#8
smallseafishie Colonel 110 Rep 2,017 Posts Drives: AW 07 e92 335i + AW 11 X5 35d Join Date: Jun 2007 Location: Atlanta GA iTrader: (13) Garage List 2007 E92 335i [0.00]	sorry to be slightly off topic but is it pretty much a sure bet that the drivers seat tensioners will be bad if the drivers airbag was deployed?
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02-02-2012, 08:31 PM	#9
DSGLightning New Member 3 Rep 12 Posts Drives: 2006 330i Join Date: Jun 2011 Location: Tulsa, OK iTrader: (0)	Update: I had the airbag module reset from all the crash data and that didn't help. I don't see any melted wires. After messing with it for an hour I am now getting rear left and rear right seat belt tensioner faults. My BT Tool is giving me a .16 ohm reading in the left and .24 ohm reading in the right. It should be in the range of .64 ohms according to the front tensioners. The rear seat belt tensioners are new. Please Help!
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