I have checked the B+ on the alternator and it look fine no corrode and it is pretty tight to the alternator.

Anyone know all of the ground point locations on this car? I wanted to make sure no corrosion and they all tight.

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2003 X5 4.4i w/ Sport Pkg, Cold Weather Pkg.
2010 X5 4.8i w/ Sport Pkg at 19,000 miles