Quick question. I have an X4, but believe it is pretty similar to the latest X3. I was wondering how to connect (hard wire) the CTEK. I noticed I have a ground connection, but I noticed 2 positive connections underneath the hood. One is quite a bit smaller then the other, and the smaller one is 10-15 cm above the bigger one and offers a M6 (I believe) connection.
If I would have to jump start the car I would use the ground and the big positive one. Now my question is can I use the ground and the SMALL positive connection to connect the CTEK comfort M6 cable?
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