no clue why

[mikedimike]

Hi my 2007 335i cabrio wont start changed bat started for couple of days then died all lights go on ac radio

tried boosting from trunk wound not crank from the hood terminals will start
Please help:nono

[mbonder]

Sounds like your alternator is dead. If you replaced the battery and it ran for a couple of days that means it was running off the battery solely, which over time depleted and now you are stuck with a dead battery and a car that won't start.

[gusm325]

You know...

Las Monday I went to start my car in the morn to leave to work and it went bezerk...:confused

All the dash and lights starting flashing , all the gauges in the dash board even the hazard switch, I could hear the relay behind the glove box clicking and could not even get it to stop by pressing start again nor could get the key fob out of the slot until it decided to stop by itself...

Of course tried again same thing, went check the battery, the eye was green and a volt meter gave me 12.8volts... Low but I guessed ok...
My neighbor came to jump me with his Hyundai and same deal...
In any event; I purchased the car a few years back with around 36k miles so I did not know how old the battery was, but decided to pull it out and have it checked as the way the car was acting it was unthinkable to me what else could be wrong.:shifty

The moment I moved the battery out of the compartment the eye went black...
Come to find out on the post stamped was week 31 of 2011...:eek:
I can't complain because the damn thing lasted 10 years, but the way the car acted was nuts!:banghead:
Hence my issue.:facepalm:

Have the battery tested.