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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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Old 10-08-2019, 01:33 PM
bimmer7410 bimmer7410 is online now
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Arrow Airbag replacement discussion

Greetings all. During my daily troubleshooting search for my ongoing e60 project, I decided to start gathering a parts list for the airbag modules that need to be replaced. The vehicle was in a frontal accident before (no frame damage) and apparently the rebuilders elected to skip some things.

I have a list of safety/restraint module codes, but I am getting confused by the wording for some of them in ISTA+.
98F8 SBSR: Open circuit, firing circuit, belt tensioner, front left
Self explanatory, replace the belt tensioner for the driver. Got it. But then I have the next code..

98F8 SBSR: Open circuit, firing circuit, belt tensioner, rear left
This is the one thats throwing me off. According to RealOEM, there is only a standard belt tensioner for both rear seat belts. How can there exist a fault for a mechanical tensioner, or is the description wrong entirely??

9903 SBSR: Open circuit, firing circuit, knee airbag (E85) or head airbag, right (E6x)
No problem here, I can see that the passenger curtain airbag is missing and I have a replacement in my eBay cart.

98F8 SBSR: Open circuit, firing circuit, safety battery terminal (E85) or belt tensioner, rear right (E6x)
Another odd one. There should be no firing pretensioners in the rear at all.

95B8 SBSR: Seat occupancy detector, passenger: faulty
Looks like there is a recall for this standard defect, even if not its no biggie.

9B01 SFZ: Open circuit, firing circuit, safety battery terminal
Again no issue here, except the price for the part

93F9 SGM-SIM: Control-unit fault
Still researching to whether this will require a new control unit or not.

9402 SGM-SIM Front sensor, left
9403 SGM-SIM Front sensor, right
9404 SGM-SIM Front sensor: wrong component

Seems the above three codes deal with the crash sensors which are supposed to be mounted somewhere on the front of the car. I assume this is somewhere on the front bumper. I do not know where the actual connector is for these devices...

94D8 SZL: Open circuit, firing circuit, drivers airbag, stage 2
94C8 SZL: Open circuit, firing circuit, drivers airbag, stage 1, to ground
Sounds like I just need to replace the driver's side airbag

Another odd thing is that there is no code for the driver curtain airbag nor the passenger front airbag. How accurate are the code descriptions within ISTA? Any comments are greatly appreciated!!

Last edited by bimmer7410; 10-08-2019 at 01:40 PM.
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  #2  
Old 10-09-2019, 06:43 AM
bimmer7410 bimmer7410 is online now
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Old 10-09-2019, 07:51 AM
bimmer7410 bimmer7410 is online now
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Answered my own question regarding the rear pre-tensioners. I misread RealOEM, turns out there exists an option which furnishes the rear seats with pyro tensioners. Added to cart..
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