Re: My XF - She wont start
If the engine is turning over more slowly than before, it is probably the battery.
Just recharge it and see how she goes. If you have a multi meter check the battery voltage should be between 12.4 and 12.6. Any lower than that needs a bit of a tickle up.
You can get digital multi meters for around $10 now at you local "Cheap and Nasty" warehouse. They are all you need.
"I married Miss Right. I just didn't know her first name was Always."