Hey guys,

Just purchased a 2009 XF 4.2NA. This is my 4th Jag and it seemed to be a well taken care of example. I purchased it from a Jaguar dealer with 95k miles.

I picked the car up in Houston and drove it back to South Florida (1200 miles). Car ran perfect and AC was ice cold.

After a few weeks in.. I'm having some issues. I had a CEL on a cold start saying the secondary air pump has a fault.

1 day later, the AC stopped blowing cold. It was on and off type cooling.. but eventually nothing. On the next start, the AC was working perfect. Now it's blowing warm air at any speed.

I checked the low pressure and it was 100psi while car was off. I then got a check engine light saying lean bank2 condition.. (vacuum leak?).

Does this sound like a battery on its way out? My x150 did all sorts of odd things when the battery was starting to go. Would the AC and Battery have anything to do with each other?

I dropped it off at local mechanic for AC diagnostic. (It seems obvious that compressor isn't running).
I'll let everyone know what they say.

Thanks