2001 BMW 740i Questions

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I was disconnecting and reconnecting my battery every night and then in the morning to be assured the car would start. All of a sudden the car doesn't even want to turn over. Have I damaged the electrical system on ...
My car detailer was replacing the passenger mirror and my trunk stopped opening. I had to buy the master key in order to get the trunk unlocked. There was only a few items in the trunk. My truck unlock buttons are ...
I had my car jumped from the battery. I heard this could mess up the battery module sensor. if so how much is this to fix?
The panels that secure the seatbelts for the front seats are broken. The plastic mounting clips that connect the panels to the chasis are dried out and the clasps have broken off. I think I could replace the clips my...
Took my 01 BMW 740i for smog check. Diagnostics listed about six codes, all sensors. Was told car had a misfire?? The car turns on, but it stales like its runing out if power gas and then all of a sudden takes off as ...
Recently replaced my alternator (about 3 weeks ago) then had a problem with my battery which probably came from the old alternator taking quite a toll on it before it finally died so i replaced it. but i am still havi...
there is a taping sound in the engine,this is just a week now, i had my oil change and is still taping, what must be the problem? car have 145k miles please help me
So when I drive and as I pull to a stop, I would say when the transmission goes down to firstit pushes forward. Its a automatic and the wierd part is when in drive, it is as smooth as can be. I do think that it may be...
i just replaced the alternator... and i was turning my ac to make sure it turn on. so when i tried the heating system, it was blowing cold air. can someone tell me if there was a sensor or something i didnt put back w...
Is changing the mass air flow sensor something that I can do myself? Are there any you tube videos or diagrams to show how?