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The BMW Range
3 Series
E46
Battery indicator on and gone after engine restart
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<blockquote data-quote="manjit" data-source="post: 326109" data-attributes="member: 323"><p>Agree with bro azam. Before you start the engine, measure the voltage at your battery terminals. It should indicate 11 to 12 V. With the car engine running(altenator charging), it should be higher(12.2 - 12.7V). Batteries which hold less than 75% of the rated voltage(during s/by) are deemed goner and needs to be changed. Some shops sifus have the habit of pulling out the terminal when the car is running, BEWARE!!!!! that is extremly unhealthy for the car. Their reason is mostly to test the altenator charging capability. It is a true fact, but not suitable for modern cars.</p></blockquote><p></p>
[QUOTE="manjit, post: 326109, member: 323"] Agree with bro azam. Before you start the engine, measure the voltage at your battery terminals. It should indicate 11 to 12 V. With the car engine running(altenator charging), it should be higher(12.2 - 12.7V). Batteries which hold less than 75% of the rated voltage(during s/by) are deemed goner and needs to be changed. Some shops sifus have the habit of pulling out the terminal when the car is running, BEWARE!!!!! that is extremly unhealthy for the car. Their reason is mostly to test the altenator charging capability. It is a true fact, but not suitable for modern cars. [/QUOTE]
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The BMW Range
3 Series
E46
Battery indicator on and gone after engine restart
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