Originally Posted by
mariontr
Ok, started up the XF today and the belt has come off and the battery light came on. Do you normally change the pulley and or tensioner and the belt at the same time as preventive?
See George's questions above about oil, etc.
I change my belt, like I said, given how few miles I put on the car, every 4-5 years (30,000 miles or so) but unless I'm having a problem or hearing noises, I dont go farther than that.
I DID have a belt tensioner go on the Graphite, it was making all sorts of noises, LOUD noises. I changed it and the idler pulley at the same time (idlers tend to fail, too). But I didn't change pulleys until I hear odd noises or notice shaking or wobble in them with the engine idling.