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      03-14-2022, 11:32 AM   #1
Fergusonic
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Dead... then Alive

2020 M240i Xdrive. Auto. 13k miles completely stock:
Took it out for a short drive. Comfort Mode. 4 stop signs. Country 65 mph. I then stopped at a Stop Light and it went dead! No Screen, no gauge lights: nothing. I first thought I had accidently had put it in ECO PRO but that was not the case. I hit the PARK button-foot on brake, and hit the START button: Nothing. I moved the shift lever, hit PARK again-foot on brake, hit the START button and it started.
Anybody ever experience this ? Recommendations? Fob Battery?
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      03-14-2022, 08:53 PM   #2
jzeiler4
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I would say car battery or loose connection.
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      03-15-2022, 08:10 AM   #3
MarcoZandrini
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Take it to the dealer and have them scan the kaziliion computers.
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      03-15-2022, 09:24 AM   #4
Fergusonic
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Hmmmmm... and I thought there were only a Bazillion computers in there..... learned sumpin' today !
Diagnostic appt March 22 at BMW Dealership. The guy said it does not sound like a faulty Battery.

Last edited by Fergusonic; 03-15-2022 at 10:19 AM..
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      03-16-2022, 08:36 AM   #5
MarcoZandrini
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Quote:
Originally Posted by Fergusonic View Post
Hmmmmm... and I thought there were only a Bazillion computers in there..... learned sumpin' today !
Diagnostic appt March 22 at BMW Dealership. The guy said it does not sound like a faulty Battery.
Inflation, my good man.
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      03-22-2022, 10:40 AM   #6
Fergusonic
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Back from Dealership Service dept. They ran Diagnostics and just as I suspected; Bad Muffler Bearing !!.... hate when that happens.
Actually I asked them to ensure that the Battery Gound Cable had a good connection also. Diagnostics showed nothing.
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      03-22-2022, 04:06 PM   #7
jzeiler4
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There have always been ghosts in the machine. Dr. Alfred Lanning, i Robot.
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      03-23-2022, 08:16 AM   #8
MarcoZandrini
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Quote:
Originally Posted by Fergusonic View Post
Back from Dealership Service dept. They ran Diagnostics and just as I suspected; Bad Muffler Bearing !!.... hate when that happens.
Actually I asked them to ensure that the Battery Gound Cable had a good connection also. Diagnostics showed nothing.
"Bad muffler bearing"? It must need more relative bearing grease. Check Redline.
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      03-23-2022, 04:28 PM   #9
Fergusonic
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I think they may have added some "virtual" grease to that bearing. Now where's that smiling emoji.
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      03-27-2022, 08:24 PM   #10
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This joke is not funny to me. The butterfly valve in my exhaust (aka sport vs comfort) starting squealing like a banshee. So I put grease on the bearing and it went away for a few months. Then last week the valve was rattling like a loose heat shield, and I found the clip between the motor and valve was gone. So I think I do have a muffler bearing problem (the bearing on the exhaust valve anyway).

Better buy some blinker fluid.
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