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      02-03-2021, 05:23 AM   #21
HighlandPete
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Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

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Quote:
Originally Posted by div1ne View Post
As far as the ASS goes, they said the battery is at 70-80% so that can be the reason. Since it's not at 100%, it will prioritize where to send the power and will cut off extra features like ass to make sure everything else gets enough. 2nd item added to replacement list.
It's not a terrible inconvenience, I usually disable the ass feature anyway. I looked it up and as far as I understand it could be solved with some coding or battery replacement.
Keep in mind a battery SoC of 70 - 80% is a typical running state in our models.

It's not necessarily a sign of a failing battery. Even if you charge it to 100%, after some use it can drop back to ~80%. The alternator will not be charging the battery to maintain 100%, (it's only supporting demand above about 80%), as battery capacity is left for over-run energy harvesting.

There are a multitude of factors why ASS doesn't function. Charging the battery will eliminate the battery being the cause, if ASS works after an additional charge.
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