Reply With QuoteIt will shut down. Atleast mine did when my battery terminals were loose
NovceGuru
Major Contributor
Disconnecting the battery when the engine is running
What will happen if I disconnect the battery while the engine is running? Will the engine shut down or continue running?
Last edited by t_marat; 03-16-2006 at 07:09 AM. Reason: adding email notification
1994 520i with M50 engine, manual transmission and air conditioner.
VIN: GG45422
Big, Big Time Poster
It will shut down. Atleast mine did when my battery terminals were loose
NovceGuru
1993 525iA M50TU
Black on Black...need pics
208,888 miles
Major Contributor
Mine also shuts down if I disconnect the battery. I currently have a problem with my battery, it got drained. There is a seperate thread on that. I was thinking if my alternator was faulty.Originally Posted by NovceGuru
You see the russian made cars engines continue running even after you disconnect the battery.
Last edited by t_marat; 03-16-2006 at 07:29 AM. Reason: email notification
1994 520i with M50 engine, manual transmission and air conditioner.
VIN: GG45422
Super Moderator
NEVER disconnect the battery when engine is running. In worst case you can have heavy damage to your electronic systems.
5-10 Grand Master
that's a bad thing to do to a computer controled car, with nothing for the alternator to push against and regulate itself by you get a massive power surge when you dissconnect the battery, yes the car may stay running but you can fry some stuff too
all america wants is cold beer warm cat and a place to take a poop with a door on it
Major Contributor
Really *REALLY* bad idea.
Google battery & alternator & "load dump"
Major Contributor
Did it on a 92 geo prizm... was alright afaik
-Artem
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