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      10-28-2019, 01:25 AM   #1
vt
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540i6 no-start root cause identification - help needed

My 540i6 just died, with no previous degradation observed.

Here's the symptoms:

- First attempt to start the car: one click, dashboard goes dead
- Turn the key back, dashboard goes back alive
- Second attempt to start the car: one click, dashboard goes dead
- This time, it stays dead when I turn the key back
- However, by the time I get out of the car and get to the battery to
measure the voltage, the battery voltage is normal (12.24 or so).

First thought was - the battery's dead, but no, it checked out fine.

I wonder what the cause may be - one obvious candidate is the starter;
could it have died without any previous warning? What other possible
causes could there be?
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      12-31-2019, 06:48 AM   #2
LuvMyE92
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It's the battery, it's always the battery.
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      12-31-2019, 01:46 PM   #3
vt
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Quote:
Originally Posted by LuvMyE92 View Post
It's the battery, it's always the battery.
You're right, it was. In a somewhat mysterious way. It behaved as dead so I brought it to the shop to check - they told me it was good. Surprised, I came back, left it on a trickle charger for a couple of days - indeed, it's been good since.

Gremlins.
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