[fearitself165]

Does anyone have a link to or the exact measurements or name or whatever for the positive collar nut which holds the positive starter cable to the passenger side of the frame under the hood? I know its a 13 mm size but i cant seem to find it anywhere on realoem.com or anything. Im guessing the nuts are of the same size that hold the positive battery red thing down in the trunk but i cant find those on realoem, only the smaller ones that hold the cables to the posts. Anyway ive done a wee bit of searching on here and google and i cant seem to find it, can anyone help please?

[jacbo]

Could you post a picture of where exactly you mean?

I know the nut holding the positive cables to the alternator is an M8 nut and the standard spanner size for M8 is 13mm so could make sense if it's the same.

[fearitself165]

Originally Posted by jacbo

Could you post a picture of where exactly you mean?

I know the nut holding the positive cables to the alternator is an M8 nut and the standard spanner size for M8 is 13mm so could make sense if it's the same.

Yes thats correct and is the one I was looking for. I had found the part number online yesterday but driving around with the starter cable loose literally left me stranded several times because of the voltage draw.. so I yolo'd and did a suicide run to the nearest BMW dealership from my house (10 minutes thank god). By the time I got there and started tightening the nut my voltage dropped down to 8 or so... but a jump solved the problem and my voltage finally stayed constant above 12. The only problem was because I was driving around with the loose cable, it melted through the cable sleeve a little, and because it was sparking and getting hot by where you connect the cable to the chassis, when I tightened the nut it started bending the metal and pretty much ruined the part where the alternator and starter cables connect too. But thankfully I special ordered that and it was only $40 or so! Anyway, thanks for the help!

[jacbo]

Originally Posted by fearitself165

Yes thats correct and is the one I was looking for. I had found the part number online yesterday but driving around with the starter cable loose literally left me stranded several times because of the voltage draw.. so I yolo'd and did a suicide run to the nearest BMW dealership from my house (10 minutes thank god). By the time I got there and started tightening the nut my voltage dropped down to 8 or so... but a jump solved the problem and my voltage finally stayed constant above 12. The only problem was because I was driving around with the loose cable, it melted through the cable sleeve a little, and because it was sparking and getting hot by where you connect the cable to the chassis, when I tightened the nut it started bending the metal and pretty much ruined the part where the alternator and starter cables connect too. But thankfully I special ordered that and it was only $40 or so! Anyway, thanks for the help!

ahhahaha wow you weren't joking about a "suicide run". Im glad it ended up ok in the end. i can see why people on this forum say to have a 2nd car while you repair your bmw...

[rngorin]

Looking for the same part... do you happen to have the part number still handy?

[fearitself165]

Originally Posted by rngorin

Looking for the same part... do you happen to have the part number still handy?

Is it the B+ terminal you're referring to? If so I can get it i still have the broken one in my trunk.

EDIT: part # 61149144884. To get the old one off you need to openthe ecu cover to reach the nuts on the back

[fearitself165]

Originally Posted by jacbo

ahhahaha wow you weren't joking about a "suicide run". Im glad it ended up ok in the end. i can see why people on this forum say to have a 2nd car while you repair your bmw...

Yes that would be a definite recommendation by me as well. Several times I have been stuck because of missing a certain tool or piece of hardware and had no way to get a new one but order it. I guess I could have ubered to the store but there are times when you don't even know the exact part # or thing you need and you're guessing sizes... thats when a 2nd car is really necessary.