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12-22-2011, 12:01 PM | #1 |
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Safety questions: Recaro, Roll bar, Air bags, etc
I tried searching but nothing answered my specific questions so I created this thread. First a little background. I recently purchased an AE performance bolt in roll bar and Recaro Profi SPG seats for my m3. I plan on doing more hpde/auto-x events next year so my car will serve as both my daily driver and weekend track car. I know some of you will suggest to keep the interior stock or get a cheap track car, but I already have the parts and a second car is not an option for me at the moment. So here are a few configurations I'm thinking about and need your input on safety especially for my passenger:
Daily setup: 1) Driver side recaro, stock passenger, oc3 (disable the driver airbag/seat belt fault), stock seat belts (both sides) From my research it seems some are against running a folding stock seat with a roll bar in case of a collision the seat might fold backwards. Reason for keeping in the stock seat is because it retains the passenger front air bag and it's easier to get in and out for the passenger. 2) Driver and passenger recaro, oc3 (disable passenger front airbag), stock seat belts With the fixed back seats on the passenger side and OC3 seat occupancy sensor you lose the front air bag. From a safety standpoint is this safer for the passenger than option 1? Which setup do you think is safer? Or should I not consider either setup for the street? Track: Driver and passenger recaro, oc3 (disable both airbags), 6pt harness for both sides No doubt this is the way to go for the track. Perhaps too much for the street, but should this be the only option for street and track? Another option is to remove the Recaros and Roll bar in between events but 1) it's a pain and 2) I don't want to strip the bolts that hold the seats in by swapping the seats in and out often. I've searched to see if there was a way to retain the passenger front air bag but since BMW integrated the seat cushion and seat occupancy sensor it doesn't seem possible for our cars. Has anyone successfully modifed the seat occupany sensor from the e46 to work in the e9x like the one in the link below? http://www.ecstuning.com/BMW-E46-M3-...nsor/ES183150/ How does Porsche implement a roll bar and fixed back seats in street legal cars like the GT3 and still keep them safe? Thanks in advance! Last edited by gixxer_kidd; 12-22-2011 at 03:10 PM.. |
12-22-2011, 01:48 PM | #2 |
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Good thread. Subscribed.
Why is it necessary to disable the driver front airbag during street use? I would assume there is no occupancy sensor for the driver's seat in stock configuration, since as long as the car is being driven, someone must be in the driver's seat and therefore that airbag would always need to be operational, unlike the passenger's. |
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12-22-2011, 01:56 PM | #3 | |
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http://www.m3post.com/forums/showthread.php?t=273704 I was under the impression that the OC3 would disable both airbags but what you're saying makes sense. I don't believe the driver seat has an occupancy sensor, so you're right. That's one less concern. |
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12-22-2011, 03:15 PM | #5 |
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Can you please elaborate a little more. By "fix" did they code out the seatbelt and error light from the dash and idrive (which still disables the passenger airbag like the OC3) or did they figure out a way to keep the passenger air bag?
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12-22-2011, 03:32 PM | #6 | |
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But hard to say for sure if I have not seen it deploy. I have a x2 driver/passenger recaro pole positions (fixed back) 6 point schroth harnesses and a roll bar. |
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12-22-2011, 04:02 PM | #7 |
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There is a coding option on the M3's that is for recaros. The option is there for the M3 gts. It will delete the air bag code for the seats. the arm extenders for the seat belt, and the passenger seat occupancy sensor.
Last edited by VSmotorsports; 12-22-2011 at 05:03 PM.. |
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12-22-2011, 05:52 PM | #8 | |
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Do you know if the passenger airbag functions as normal when coded? I was wondering what BMW did for the GTS too. I basically have the same seats. |
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12-23-2011, 07:33 AM | #9 | |
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Looks like this is what I need to get done. And I ordered the OC3 yesterday too : http://www.m3post.com/forums/showpos...&postcount=208 |
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12-23-2011, 01:33 PM | #10 | ||
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Correct, these are added to the HO-WORT and stored as part of the Vehicle Order (VO). This option is available for locals looking to be coded.
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12-25-2011, 05:30 PM | #11 | |
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I've never seen our cars driven from the passenger seat which is why I would suspect that the driver's seat has no occupancy sensor while the pass seat has one. Sorry...couldn't resist.
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12-25-2011, 05:48 PM | #12 |
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01-05-2012, 02:36 PM | #13 |
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Quick update: I decided to install both driver and passenger Recaros and found someone local who coded my car for me. This is what he did:
- disable passenger and driver seat airbag - disable passenger occupancy sensor After coding all seatbelt/airbag errors went away. Thanks for everyone's input. Now I need to decide on which harness to go with. |
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02-03-2012, 02:40 PM | #15 | |
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Did you get the passenger and driver seat airbags disabled or the just the error lights?
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02-04-2012, 07:00 AM | #16 |
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02-05-2012, 01:18 PM | #17 |
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Just want to make sure I understand what you did. Your coding disabled driver and passenger seat side airbags, which makes sense, because your new Recaros don't have side airbags, and the coding disabled the passenger occupancy sensor.
So with your current setup and coding: Your driver and passenger front airbags (steering wheel and dash) are operational. In the event of an accident, the steering wheel airbag and front passenger dash airbag would deploy, even if the passenger seat was empty, since the passenger occupancy sensor is gone and disabled. Side curtain airbags on both sides are operational. In fact, all airbags are functional and work as intended, except for the driver and passenger seat-side units. You have no error messages on the dash or in iDrive. |
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02-06-2012, 02:37 PM | #18 | |
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No errors, in the iDrive. |
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