Quote:
Originally Posted by Fifty150hs
The three most common causes of parasitic drain are the TCU, The Nav (if you have it) and the FSR. Pull one fuse at a time and you will find the cause. My money is on the TCU (fuse 74) as that seems to be the most common cause. Pull the fuse and see if that solves your problem.
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my x5 did not come with nav stock .. my aftermarket unit does have one tho