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The BMW Range
5 Series
m20 ecu reset?
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<blockquote data-quote="ngkm" data-source="post: 44100" data-attributes="member: 147"><p>Moots,</p><p>Agree with ya. Did not notice this problem earlier in the car.</p><p>Guess there is some built in storage capacitor or some temp batts which is no longer working. Or was that why it took soooo long to get my car back from AB during service (they could have idle'd it until it returned to normal before returning it).</p><p></p><p>Someone did suggest to create a temp 12v supply via the lighter jack when the main batts is taken off to avoid this. However, in this scenario, we still can't work on the car's electrics as its circuitry could still be "hot". And its useless against accidental/unplanned battery outage, like your current scenario.</p><p></p><p>cheers.</p></blockquote><p></p>
[QUOTE="ngkm, post: 44100, member: 147"] Moots, Agree with ya. Did not notice this problem earlier in the car. Guess there is some built in storage capacitor or some temp batts which is no longer working. Or was that why it took soooo long to get my car back from AB during service (they could have idle'd it until it returned to normal before returning it). Someone did suggest to create a temp 12v supply via the lighter jack when the main batts is taken off to avoid this. However, in this scenario, we still can't work on the car's electrics as its circuitry could still be "hot". And its useless against accidental/unplanned battery outage, like your current scenario. cheers. [/QUOTE]
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