Relink original bmw master key with engine management unit.

[shineyshoes]

My (only) ignition key (e39, 2002) has stopped working and the car won't start..

Anyone know how to relink it to the engine management system?

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A bit 'o' background..

It stopped after I left it in the ignition while cleaning out the screen wash tank/filter. There is a tank sensor. With 20:20 hindsight, it probably got triggered half a zillion times during the disassembly/cleanout.

My other (remote central un/locking, no ignition) key still works ok.

Carsoft651 initially (ie 1st check after the key prblm started) showed ecw, instrumentcluster, airbag errors. These were/are all resettable by carsoft with the ignition key in position1.. But, try to start the engine (key to position3) and the next carsoft full diag check shows the return of ecw/instrucluster errors.

Resynching the emw/ignition in carsoft doesn't complete (error msg "can't finish this" or somesuch).

When the key is used to try to start the engine, all/most of the instrument cluster lights come on, there is noise from within the dashboard, some of the exterior lights flash, and no sound from the engine..

Disconnecting the car battery overnight makes no difference.

Oh, and the screen wash jets work really well now.

[obdmaster]

Its not a job, for the faint hearted:

http://www.digital-kaos.co.uk/forums...problem-84248/

[shineyshoes]

I'm reading the thread now - hope I'll find your dad got it fixed !

[obdmaster]

Its a happy ending m8

[shineyshoes]

from #108 http://www.digital-kaos.co.uk/forums...problem-84248/


"EWS boxes ive been told are ?50 to ?60. Why did we try fixing it at that sort of money? you might ask as im asking myself! Cause deep down we all like a challenge!!"

I think I may be happier "unchallenged"!

My 1st thought is: confirm the diagnosis in my case, and then get the ews box (and I guess maintain future compatibility with the other 9 mainstealer keys).

Is the ews a dealer-only product?

[obdmaster]

Make sure it is the ews, mine had no communication on diagnostics. What BMW diagnostics you got m8?

[shineyshoes]

saved output from carsoft651 plus screenprints of same.

Can post em: is that acceptable forum policy?

[obdmaster]

yes m8, post em, we post screenshots all the time here. its nice friendly place here

[shineyshoes]

ok, I'll go dig 6 of 'em off the old carsoft laptop and post em as attachments in 20mins.

[shineyshoes]

Here's 6 screen shots and the carsoft651 history file.

Items 1 and 2 are from a pevious run on the same car a year ago before this problem.

Items 3-6 are after the problem started and are from the first use of carsoft. The names should be expalnatory.

the carsoft .pdb file is the history of the run that produced the screen shots. It needs cs to make it pr0perly readable.

Over to you!

[obdmaster]

where are your EWS fault codes m8? ? I can see vares is hovering over this thread. Hes one of the members who helped me. Hes very good on this subject m8

[shineyshoes]

ok, dumb answer I know, but, where/how would I find these?

[obdmaster]

ok, dumb answer I know, but, where/how would I find these?

Go into EWS m8, thats your im*obiliser and read the fault codes.


go into DME or DDE also m8 and get codes thats your engine management

[shineyshoes]

Sorry let me rephrase. I'm guessing that cs651 wont allow me to do that: what tool should I be using?

[obdmaster]

Sorry let me rephrase. I'm guessing that cs651 wont allow me to do that: what tool should I be using?

Do you work with cars m8, as both Inpa and pasoft 1.4.0 i used. You can make things a whole lot worse by pressing the wrong button if you dont know what your doing.

Dont mean to sound horrible m8,


Thats why i asked so many questions when doing mine m8