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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 02-07-2013, 05:44 PM
sky2you sky2you is offline
Registered User
Location: WA
Join Date: Sep 2006
Posts: 12
Mein Auto: BMW E39 525iT
HELP: EWS Error and won't crank / start

My 2003 E39 525iT 140k miles won't start. It doesn't even crank.
I have checked the starter and it is in good condition.
Carsoft 6.5 show below error but I don't understand what is problem.

5 Schl?sel 5 nicht erkannt
Ablauf bei Schl?selidentifikation und Startvorgang
- Der Transponder im Schl?sel wird ?er die Ringantenne mit
Energie versorgt und sendet die Schl?seldaten an das EWS3-Stsuerger?.
- Das EWS3-Stsuerger? pr?t die Schl?soldatsn suf ihre Richtigkeit
und gibt erst dann ein Freigabesignal an Motorsteuerung mid Anlasser.
- Nech dem Motorstert erzeugt das EWS3-Steusrger? neue Schl?seldaten
(Wechselcode) und sendet Sie an den Transponder is Schl?sel

Please see attached screenshot or this http://i1213.photobucket.com/albums/...ps6052da4b.png

Please advise...
Thanks in advance,
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Last edited by sky2you; 02-07-2013 at 05:53 PM.
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