Originally Posted by LantanaTX
I am pretty sure you guys figured it out. I jumped in the car to go get a battery and it would not start! I drove it all day yesterday with no problems. After jumping the car, I went to Firestone to get the Interstate battery but they wanted $169.00 I decided to call the MB dealer in the morning and see what they want.
If you have an O'Reilly's (a chain auto parts store) nearby, they sell a battery for the Crossfire for $75-80. It's a 100% perfect fit for the OEM battery except it is black (not white.) Much cheaper than Firestone - same CCA and reserve power rating.
WARNING: Crossfires were manufactured with two different physical battery sizes. The battery part # O'Reilly has in their computers is for the LONG battery. Some Crossfires (like mine) have a spacer on the battery tray which forces you to use a shorter battery. Make sure that you bring your battery into the store and choose the battery that matches your XF. The two different battery sizes are identical except one is slightly longer than the other.