At long last. The Jag has a fresh MOT. The mystery of why the good caliper was 'bad' was solved. It was, err, hmmmm. My fault. On the back of the brake pad is two studs. These studs engage with two slots that are on the head of the piston. Guess who didn't do the job right? Well, I did get it right on the other caliper.
There's still some things that'll need doing during the coming year. One suspension arm was replaced, but the other is on its way out. Although the 'bad' caliper passed the MOT. I'm not happy with it. Think I'll get it changed. The rear coil springs are rusty. I've already had the front two changed. I think it's time for the rears to be done.
Oh. Now that the air-con has been serviced (and re-charged). The difference is noticable.
Well. That's £1000 blown on the Jag this month.