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      08-25-2023, 12:43 AM   #64
san40k
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Drives: 2008 E90 335i N54 6MT
Join Date: Dec 2010
Location: WA

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coding out airbag errors on E90 335i with race seats

This thread was tremendously helpful, thank you rocket_science !

I got a 2008 E90 335i "track" sedan with Racetech buckets and 6 point harness. I kept oem front seat belts and tensioners for the street. Front tensioner cable is plugged to the socket under the seat. Rear seat tensioners removed.

My experience
- I did not code VO (+RECA), didn't want to re-code all the modules
- I only succeeded if I coded against FRM ECU (not CAS), writing to CAS didn't error, but didn't take any effect - stumbled me for a while
- I changed the following to nicht_aktiv via NCS Expert/NCS Dummy following instructions from LMB335IS
, in order they appear in FSW_PSW.TRC:
CC_GURTWARNUNG_1
GURTSTRAFFER_FONDLINKS_1
GURTSTRAFFER_FONDRECHTS_1
OC3_1
SBR_FAHRER_1
SIDEBAG_LINKS_1
SIDEBAG_RECHTS_1
GK/OC3/POL
AACN_1
O_GW_F_1
SBR_BEIFAHRER_2_CD
This might be too much, but I tried to match parameters in my car with original post and additionally disable rear tensioners. No airbag errors/warnings on the dash at the moment.

Below is the whole NCS Dummy export from airbag module (ABG) after the changes were applied.
Attached Files
File Type: txt E89-MRS5CD.C22-ABG-TraceFunctions.txt (161.3 KB, 112 views)
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