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      09-09-2017, 06:50 AM   #18
houtan
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Drives: 2011 135i
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2011 135i  [9.85]
Quote:
Originally Posted by 02Pilot View Post
When you're checking the battery voltage, are you taking the surface charge into account? To remove that charge, IIRC (it's been a while since I checked) the BMW procedure is to turn on the high beams for five minutes with the engine off, then wait another five minutes, then test. If you don't do this before measuring, you'll end up with a false reading.
Thanks. No I wasn't doing that, will try it and post the results.
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