Bimmerfest - BMW Forums - View Single Post - Delayed alternator charging in cold weather
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Old 01-05-2013, 06:34 PM
dryflyguy dryflyguy is offline
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Location: Marin County, CA
Join Date: Nov 2009
Posts: 25
Mein Auto: 2006 X5 4.8iS
JNMNL, going through the exact same scenario on my X. Only in the mornings and it is temporary. My vote is either the alternator or voltage regulator. Both are known issues with the E53 platform. My new stereo has become a victim of the voltage drop in that the digital processor is very voltage sensitive and does not correctly boot up in the morning when there is the greatest draw. It's very frustrating not having music after investing as much as I did. My car is going in to the shop in a few weeks for that problem as well as a list of other issues. I will let you know what they find and advise.
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