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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 07-15-2014, 09:19 AM
russbo russbo is offline
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Location: Green Valley, AZ
Join Date: Jun 2007
Posts: 6
Mein Auto: 528i
Reset 5251 1997 airbag light

Despite scanning many posts on airbag light resets, I've not found one specifically addressed to how to reset the airbag light following passenger door disconnect of airbag before disconnecting battery, aside from seeing my friendly, expensive BMW dealer, etc. [Replaced failed window regulator - that accounts for 3 0f the 4 door replacements over the years :-( ] I did this and can't turn off warning light. Ran OBD2 and it returned zero codes. Tried pushing various buttons hoping something good might happen but that didn't work. Short of buying a specialized tool, is there any other way to solve this problem?
What are the two exposed terminals on the OBD port connector cover supposed to do?
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Old 07-15-2014, 11:18 AM
edjack edjack is offline
Officially Welcomed to the 'Fest
Location: San Jose, CA
Join Date: May 2007
Posts: 9,079
Mein Auto: '97 540i 6 speed
You need to reset the light at the DTC, on the right shock tower; that line is not present on the early OBD connector. There are cheap reset tools on ebay, or consider the Peake SRS tool.

BTW, I'm not familiar with the 5251 model.

Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.

Last edited by edjack; 07-15-2014 at 11:20 AM.
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Old 07-15-2014, 04:14 PM
russbo russbo is offline
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Location: Green Valley, AZ
Join Date: Jun 2007
Posts: 6
Mein Auto: 528i
Airbag Light

Tks for the response. BTW my fingers hit the wrong number; it's a 528i
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Old 07-15-2014, 06:01 PM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 21,084
Mein Auto: 02 BMW 525i M54 auto 130K
I don't know the older cars, but typing /airbag or /srs reset in the bestlinks nets these. Do they not contain the answer?
- What is the cheapest usable BMW E39 airbag srs reset/scan tool on the net (1) & what can cause a BMW E39 SRS airbag light (1) (2) (3) (4) (5) (6) & what tools reset the fault (1) (2) (3) (4) (5) & what happens when we disconnect the airbag before the battery or we connect the battery before disconnecting the airbag in seat and window regulator repairs (1) (2) (3) (4) (5) (6) (7) (8) & where to buy an airbag occupancy sensor bypass unit (1) (2).
Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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