What happened :
1) First 4 miles or so of driving, felt like a slight pulling on the car ( obvious to me now brake slightly sticking )
2) Shortly after 4 miles a whining/swirling sound from rear passenger side wheel area which stopped upon applying the foot brake.
3) Shortly after that brake pedal was going straight to the floor but would resume normal operation upon a few pumps of the pedal.
4) On the last 2 miles on my way back home brake pedal operated as normal and all seemed fine. There was a smell which i cannot explain when i parked up, i touched the tyre and it wasnt any hotter than the others altho the rim did seem warmer ( but not untouchable )
I didnt put the handbrake on when i stopped ( just left in reverse gear ).
10 minutes later i checked to see if the brake was seized ( my drive isnt quite flat ) the car moved straight away once i took it out of gear and stopped instant when i applied the foot brake. I repeated this a few times, result was normal.
To recap, tempreture was well below freezing last night. Passenger side rear wheel. Brake fluid is on the max line with no signs of leak around the master cylinder or bubbles etc in the tank itself.
Any ideas peeps ??
Sorry, i should also mention the car is 1.7 TD 1999 X17DTL,braking system is disks and pads on rear