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Old 02-05-2013, 04:33 PM
bmwoem1 bmwoem1 is offline
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Location: New York
 
Join Date: Jan 2013
Posts: 617
Mein Auto: X3
If your e60 has a build date in 2003, then you have an m54 engine. I highly doubt that a software update will fix your cold rough idle problem. I know at my dealer the customer doesn't pay for fried control units due to failed programming, it's not their fault nor is it ours... It's BMW's software. These control units usually get goodwilled... But every dealer is different, it's up to them who pays for it
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