Hey guys, need some help from you. Since I don’t know if my alternator or the cables are bad.
Backstory: while driving the battery icon came up and basically my car went into “safe mode”, all electronics died aka wipers, radio, steering etc.
Tried to charge the battery to full, put it back in - car didn’t start.
Bought a new battery - car started perfectly. I did the alternator test on my dash (test 19/9) While driving the numbers were 14.3 - 14.5 did about 20km and the battery icon on the cluster came on again showing me 12.0, though the electronics didn’t die (I assume yet because the 12 is basically fully charged battery?).
Now my question is: is it the alternator or something else is messing up?
Thank you for the advice in advance 😊
Replace the alternator.
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Yep they come and go. You can try a new voltage regulator if you want to save a little money.
Be advised that bmw sourced alternators from Bosch and Valeo. They are not interchangeable. Remove the air cleaner box and the upper hose. Use a mirror and a flashlight yo read the label at the back of the alternator. Hopefully it’s a Bosch. If it is a Bosch, buy a rebuilt alter that’s in a black Bosch box. Easy swap.
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