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BMW 5 series E39
17-07-2019, 08:56 AM, (This post was last modified: 17-07-2019, 09:10 AM by Thorsten.)
Post: #1
XZBMW  BMW 5 series E39
Hello together,

I have a problem with a old school E39, airbag light is on.
ISTA is writing sensor for sideairbag right side - this sensor did I change with the left side, but after some time, the failure came back, again the right side.
The sensor shouldnt be a failure then, or?

What I cant understand exactly, the part number of the MRS ecu is 6900727 - ETK is showing, that this ECU isnt compatible to E39, onle E38, E52 and E53.

Perhaps somebody here with better skills on this theme. smile


Thorsten


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17-07-2019, 09:21 AM,
Post: #2
RE: BMW 5 series E39
How is it possible to help you to find the right part number without a VIN?

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17-07-2019, 09:22 AM,
Post: #3
RE: BMW 5 series E39
HI,

you are right, I am sorry.

VIN is GY00369


Thorsten

BMW OEM FSC codes for Apple CarPlay 143 and 17B, AndroidAuto 1CA, MGU and MGU21 region conversation and others

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17-07-2019, 09:28 AM,
Post: #4
RE: BMW 5 series E39
Correct p/n is 65776997257

FSCMap -> FemtoEVO
portal.femtoevo.com online geration VO/FA by VIN, FSC sets, MGU ViM , FSC for Map Updates ROUTE / EVO / CIC / CHAMP / NBT
MD1/MG1 06.2020+ DME unlocking services.
1CR Enable for 06.2020+ EU cars (G series, petrol/DIESEL - RU only).
NCD sign for coding 2.0 for selected portal users. kiss
instagram: @femtoevo
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17-07-2019, 10:24 AM,
Post: #5
RE: BMW 5 series E39
Ok,

many thanks for your support.
So it seems, that somebody installed the wrong MRS ecu before, right?


Thorsten

BMW OEM FSC codes for Apple CarPlay 143 and 17B, AndroidAuto 1CA, MGU and MGU21 region conversation and others

LINK
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17-07-2019, 10:33 AM,
Post: #6
RE: BMW 5 series E39
Mostly it's interchangeable, so wrong p/n probably is not the case of the failure, IMHO.

FSCMap -> FemtoEVO
portal.femtoevo.com online geration VO/FA by VIN, FSC sets, MGU ViM , FSC for Map Updates ROUTE / EVO / CIC / CHAMP / NBT
MD1/MG1 06.2020+ DME unlocking services.
1CR Enable for 06.2020+ EU cars (G series, petrol/DIESEL - RU only).
NCD sign for coding 2.0 for selected portal users. kiss
instagram: @femtoevo
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17-07-2019, 10:36 AM,
Post: #7
RE: BMW 5 series E39
Hi, your MRS ecu p/n is okay. 6900727 was replaced by 6997257. If you changed sensor, problem must be in wiring or ecu. Error you sent refers to bad coding. Try to recode MRS with NCS expert.

If my post helps you, please click on Thanks and/or Reputation button.
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17-07-2019, 11:20 AM,
Post: #8
RE: BMW 5 series E39
HI,

i recded the ECU in the past, airbag light was off for round about 200km - then the y came back with the posted error.


Thorsten

BMW OEM FSC codes for Apple CarPlay 143 and 17B, AndroidAuto 1CA, MGU and MGU21 region conversation and others

LINK
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17-07-2019, 14:02 PM,
Post: #9
RE: BMW 5 series E39
(17-07-2019, 11:20 AM)Thorsten Wrote:  HI,

i recded the ECU in the past, airbag light was off for round about 200km - then the y came back with the posted error.


Thorsten

Check the wiring then, probably a short-circuit. If wiring will be ok, then faulty ECU.

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