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      09-10-2020, 07:03 AM   #83
BMWCCA1
BMW Owner Since 1971
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Drives: 1964 700 Sport Cabriolet
Join Date: Apr 2014
Location: Central Virginia

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2013 BMW 128i  [10.00]
Quote:
Originally Posted by Ric in RVA View Post
Had an odd experience the other day. Came out after lunch and car was completely dead. Like you had popped the ground off. Tried a jump pack and nothing. Later tried it with no jump pack and started right up.

14. volts at the battery idling. Disconnected all terminals and cleaned the contacts...they had a slight powder white film on them. Load tested the battery and found it good.

Reset the windows and date/ time.

Next day disconnected the Intelligent Battery Sensor (IBS) since that seems to be a potential issue. Battery looks relatively new and load tests fine on my HF load tester. Not very sophisticated. May pull battery and have it properly tested or just replaced it since these cars are so voltage sensitive.
What did you determine? It's been a while.
Appreciate 0