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750Li xDrive

There are many potential causes for your concern. If the check engine light is on, (I'm guessing it is) the first thing you'll want to do is retrieve the diagnostic trouble codes. These codes serve as as starting point for...

Hi - your friend is correct. As long as 12v is maintained to the vehicle electrical system, preserving all sort of settings and programming (without shorting cables, etc), yes, you can replace your own battery (https://www.yourmechanic.com/question/checking-a-car-s-battery-by-ron-g). There are even specialized...

There are quite a few oil seals and gaskets on your engine and so the exact source(s) of the leak would have to be pinpointed during an oil leak diagnostic (https://www.yourmechanic.com/services/oil-fluid-leak-inspection). If you do have oil leaks, as many leaks...

Hi there: It really depends on what "power adders" you're planning on installing on your BMW to produce 800 HP to the wheels. However, just remember this simple reality - the OEM internal components are not designed to handle more...