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View Full Version : Car died, e36


FLIP
06-18-2005, 06:25 PM
Car info
1992 e36 automatic
no mods
about a 1yr old battery from cdn tire
new headunit put in, but it was last year.
engine rust proofed 2 years ago (lots of oil/grease wtver they use in engine bay)
car rust proofed in winter 04
oil changed around christmas last year

Today I took my car to work and noticed that the battery light stayed on. The car drove fine to work (only 2km away). I took my car out for my lunch break down the street less than 1km away to get some food, the batt light still on. When I was driving back to work my car started to act very sluggish. Off the light I would slowly hit 4000rpm and the car would be rolling as if it was only 1000rpm and would slowly gain speed. When I turned into the parking lot, my ABS light turned on and flickered, my radio spazzed, lights dimmed, windows hardly had any power etc and the engine was worse off, but I managed to pull the car in my spot before I thaught it would die.

When I drove it home (2km away), it was acting very bad with acceleration, speed and still problem with the electricity etc. When I pulled into my drive way the car died. I came to a stop and popped it in park and then it just started sputtering trying to stay alive but it gave. It wont start up again as it has no power. A booster pack wont even do it, I had to use 2 (front/trunk) to get it started again, but it wont last.

What do you think the problem would be?

tehkao
06-18-2005, 06:41 PM
A dead battery?

FLIP
06-18-2005, 08:18 PM
It could be a dead battery if the alternator has been bad over the time period.

vintageorange
06-19-2005, 08:42 PM
The symptoms you describe make me think of the alternator.

You say that you only noticed the battery light today? The light indicates a failure with the whole charging system: battery, alt, voltage regulator etc... If your alternator has failed, when you are driving, your car is having to rely on just the battery (instead of relying on the alternator to power the car and charge the battery) and if you are running you air conditioner this will cause the battery to die rather quickly (About a 5-10 minute drive) and without the AC and few other accessories it would last somewhat longer.

Things I would try: Charge the battery really well overnight, then remove it and take it to a parts store and have them test it (it should be good) hopefully your store does this for free. Check your owner’s manual or fuse panel cover and see if there is a fuse for alternator/charging system or the like, make sure the fuse is good. Put the battery back in and start the car with the hood open. Listen for the hum of the alternator, if you can safely reach it and are up to it disconnect the alternator harness plug and plug it back in listening for an interruption of the hum. My guess is your alternator is not humming and I would recommend calling a mechanic you trust for this one, sorry.

Dave

PS your BMW will run horribly on low voltage