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Old 05-03-2014, 01:10 PM
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Join Date: May 2014
Location: Hellgium
Car: E39 528i
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Default EWS 3 in a old E39?

I'm swapping a M52TU in a originally M52 E39 from '97 (February).

My issue is that the 97 had the old EWS in it (black box, big yellow connector behind the glove box). And the connector does not fit the new EWS. So what should I do?

Should I remove dashboard and get the EWS harness from donor car? That looks crazy, it's connected to so many modules

Original EWS and ECU:




'97 EWS is version 2 / '99 EWS is version 3
'97 ECU is MS41 / '99 ECU is MS42

And I don't think it is possible to bypass the EWS on a MS42 ECU...

I'm lost with this swap. Is it technically impossible to achieve?


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Old 05-04-2014, 08:13 PM
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Default

Hi !
I had a similar problem once.It not work at.
The problem is, the EWS3 must have connected IKE.
I think that in terms of the logic ignition on the K-bus.
Without this often throws synchro EWS-DME.

best regards
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Old 05-04-2014, 08:43 PM
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Changing the whole harness, damn crazy idea I'm stopping this engine swap. I buy a M52 tomorrow.
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