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· BMWs since '87
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583 Posts
Discussion Starter · #1 ·
I spent a few hours cleaning the car on the weekend. Doors open for long periods of time, a couple of 'start it and pull it onto the driveway' and 'start it and put it back in the garage'. Later Monday I had the stereo on for about 15 minutes and it shut off by itself. Cycled the ignition and got 4x4 and DSC inactive warnings with the 'see your dealer soon, drive carefully etc'. Clock was reset too. Hmmm.

Put the charger on overnight and got the same warnings when I started it this morning. Part way to work the warnings turned off and it's been fine since.

I'd last driven it Friday evening too.

Way to put the fear in me BMW. :thumbdwn:
 

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1,618 Posts
When the battery gets drained, various systems in the car freak out and throw warning msgs and go into shut-down protective mode. It's a very electronics based car, so battery needs to be charged up and working. Else you get the Christmas tree effect on the dash.
It's a good idea to replace the battery every 4-5 years, especially if you notice it starting to weaken.
 

· Sleeper Wagon
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How old is the battery?
 

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You need to charge a battery, at least try it. I had same thing after I had light rear ended and car spent week at dealer/body shop waiting for new bumper cover and distance sensors. I was cleaning car after I got car back and radio was playing and got shut off by itself, I re-started again but it would shut off after 10 min. I went dealer, well they tried to sell a new battery but I showed them receipt that I replaced battery 6 months ago, so after kept car for almost a week they charged battery and all problems are gone. Since that time I drove 5,000 miles and never had problems with electrical issues.
 

· BMWs since '87
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583 Posts
Discussion Starter · #6 ·
Yeah, I'd immediately suspected the problem was low voltage, especially since the warnings came up without the car even being started. All I did was turn the ignition 'on'. I was surprised, however that the warnings persisted the next morning even with a fully charged battery and that it took driving it to clear them.

I have no idea how old the battery is, or whether it's an AGM type or the regular one. I'll open the trunk panels and see if a date code reveals anything.

Other than this, loving the beast. :)
 

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Yeah, I'd immediately suspected the problem was low voltage, especially since the warnings came up without the car even being started. All I did was turn the ignition 'on'. I was surprised, however that the warnings persisted the next morning even with a fully charged battery and that it took driving it to clear them.

I have no idea how old the battery is, or whether it's an AGM type or the regular one. I'll open the trunk panels and see if a date code reveals anything.

Other than this, loving the beast. :)
It is normal for those 4x4 and DSC warnings to stick around until the car is actually driven.
 
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