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Old 12-04-2012, 07:17 PM
HerbP HerbP is offline
Officially Welcomed to the 'Fest
Location: Georgia
 
Join Date: Jul 2009
Posts: 2,768
Mein Auto: 2005 645Ci & 2007 750Li
I would start with the battery, & then start looking at the alternator. When installing the new battery, run a 12 hour charge cycle to make sure the battery is fully charged. Then run the registration with a battery charger connected. This will keep the battery fully charged while running any diagnostics.

Being in Thailand, it might be in your best interest to learn how to work on the car. The BMW software is very easy to find, but sometimes hard to install on a PC. If you are handy with the tools, the software will save you tons of money. Checkout the link below for more!

Good Luck!

http://www.bmwcoding.com/
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