1999 E46 318iSE - airbag lights

Notices
 

Thread: 1999 E46 318iSE - airbag lights

Reply to Thread
Results 1 to 6 of 6
  1. 1999 E46 318iSE - airbag lights 
    #1
    Bimmer Fan
    Car Details
    Greeny's Car Details
    Model of Car:
    318iSE
    Year of Manufacture:
    1999
    Transmission Type:
    manual
    Car Body Type:
    saloon

    Join Date
    Nov 2010
    Location
    sheffield
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Can anyone tell me what is the main cause for the air bag light to keep illuminating within a week or two of resetting with a diagnostic set, is there a common fault.
    Thanks Greeny
     
     

  2. Remove Advertisements
    BimmerForums.co.uk
    Advertisements
     

  3.  
    #2
    BMW Crazed
    Car Details
    jony106's Car Details
    Model of Car:
    318 se
    Year of Manufacture:
    2000
    Transmission Type:
    manual
    Car Body Type:
    saloon

    Join Date
    Sep 2010
    Location
    south wales
    Posts
    131
    Thanks
    6
    Thanked 13 Times in 10 Posts
    the sensor under the passenger side seat you can by a bypass sensor of ebay
     
     

  4.  
    #3
    BMW Crazed
    Car Details
    colin.ab's Car Details
    Model of Car:
    530d
    Year of Manufacture:
    2002
    Transmission Type:
    Auto
    Car Body Type:
    Touring

    Join Date
    Dec 2009
    Location
    Berkshire
    Posts
    248
    Thanks
    8
    Thanked 49 Times in 45 Posts
    Check the condition of the wiring to the front seats as these get damaged. Next as had been mentioned is seat occupancy sensors. I wasn't aware of a kit to baypass this, but maybe it will fix the fault.

    Really you need the codes read off the module to pin point the fault in the system.
     
     

  5. Remove Advertisements
    BimmerForums.co.uk
    Advertisements
     

  6.  
    #4
    BMW Guru
    Car Details
    billywhizz1984's Car Details
    Model of Car:
    E36 323i x 3, 325TDS x 1, 320i x 2, 318is x 1
    Year of Manufacture:
    1999 x 2, 1998, 1997 x 2, 1996, 1995
    Transmission Type:
    Manual, Auto, Auto, Manual, Auto, Auto, Manual
    Car Body Type:
    Touring x 4, Convertible x 2, Coupe x 1
    billywhizz1984's Avatar
    Join Date
    Sep 2009
    Location
    North East
    Posts
    2,493
    Images
    4
    Thanks
    165
    Thanked 932 Times in 703 Posts
    ...or the slip ring on the steering wheel.
     
     

  7.  
    #5
    BMW Guru
    Car Details
    TheEnd's Car Details
    Model of Car:
    540
    Year of Manufacture:
    1998
    Transmission Type:
    Auto
    Car Body Type:
    Saloon
    TheEnd's Avatar
    Join Date
    Jun 2010
    Location
    Birmingham
    Posts
    8,979
    Thanks
    478
    Thanked 2,990 Times in 2,440 Posts
    Yep, you should get the codes checked out rather than just reset.
    The seat occupancy sensor is the most common cause, but it could be something else.

    If it is the occupancy sensor, the worst that will happen in that the airbag will deploy even if there is no one sitting there.
    If it is the pretensioner, the worst that will happen is the airbag will go off on a slightly less severe accident.

    There is about 3-4 different stages, light accidents might just fire the tensioner if the belt is buckled.
    If not, it'll fire the airbag on the first stage.

    next step is tensioner and 1st stage airbag if buckled, or both airbag stages if unbuckled.

    3rd step is tensioner and both airbag stages.

    That might be an oversimplification in some parts, but generally, it will either act as if someone is sitting there if the mat isn't working, or if the tensioner isn't working, it'll treat it as an unbuckled person.
     
     

  8.  
    #6
    BMW Guru
    Car Details
    Ronnie's Car Details
    Model of Car:
    See above
    Year of Manufacture:
    Never too old, never too new
    Transmission Type:
    Always manual
    Car Body Type:
    Usually 5 doors
    Ronnie's Avatar
    Join Date
    Dec 2007
    Location
    Bournemouth, Dorset.
    Posts
    20,394
    Thanks
    6,198
    Thanked 7,051 Times in 5,322 Posts
    Quote Originally Posted by Greeny View Post
    Can anyone tell me what is the main cause for the air bag light to keep illuminating within a week or two of resetting with a diagnostic set, is there a common fault.
    Thanks Greeny
    Did the place that reset the codes not give you a print out?
     
     

Tags for this Thread

View Tag Cloud

Posting Permissions
  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts