Changed the 2 rear caliperson my x reg vw golf as the rightside one was siezed now i'm not getting any brakes even after i tried bleeding it. jase

Did you also bleed the rear brakes? Also try the gravity bleed method working from the right rear wheel, then left rear, right front, then left front. Be SURE to keep the master cylinder full at all times while bleeding.

You say you filled it with fluid after the repairs. You must also "bleed" the brake lines to purge any air that is trapped in them. Brake fluid provides the hydraulic compression that causes the brake pads to clamp to the brake rotor/drum. Air in the lines will prevent this as when the brake pedal is pressed, the fluid will simply pressurize the air in the lines and not activate the caliper/wheel cylinder. The reason you have front brakes is that modern vehicles have dual-reservoir master cylinders to prevent total brake loss in the event of a leak. This is why you still have front brakes as there is no air in those lines. You will need to bleed the rear brake lines at BOTH rear wheels to purge air rom the system. The procedure is fairly simple, though some cars with ABS have to have things done differently. I would recommend you check an online forum for you vehicle (simply Google "bleed rear brakes 20xx VW Golf) and see what comes up. It is easier to do with two people, but one can sometimes pull it off.

my front windows wont go down but the back ones do on my p reg vw golf can anybody help

It is like any car really, except when it comes to the piston retraction. To make room for the new pads the piston must be twisted counter-clockwise as it is pushed back. There is a special tool for this...around $30 for a KIT or borrow one from the autozone.
I removed the entire caliper to make it easy, which means you will need a little rubber tube to plug the brake line from bleeding out after you remove the screw that holds the line on the caliper.
Do one side at a time, and you can always refer to the other for reassembly. It is really simple. The parking brake is self adjusting and spring loaded...one on the top back of each caliper. Push on the spring loaded cam and remove parking brake cable with needle nose pliers.
The calipers have 2 bolts/guide pins and the bracket has 2 bolts to mount it to the wheel hub.
Even though the line was plugged, it is still a good idea to bleed the brakes. Push brake pedal, open bleeder screw at top of caliper then close, release brake. Repeat untill no air bubbles can be heard, and the pedal feels solid/normal. Don't forget to refill brake fluid.
Good Luck.

fill master cylinder, slowly close of brake lines to be sure you have pressure from master cylinder, pump brakes to check master, check that calipers were seated in housing properly

corroded brake pipes ,easy to change then bleed brakes.You should be able to get a new one in spare shops because they sell pre-fabricated lengths.you will need a special brake pipe spanner to undo the nuts.

get a one man bleeder kit from halfords (about £7) and then you can go around the car and bleed the brakes without a assistant, you just attach the tool to the nipple on the caliper, loosen the nut, press the brake pedel a few times till there is no more bubbles in the hose and then move on to the next corner, there is a specific way to go around the car but if you start at the back and finish at the front it should be ok

• Right rear
• Left rear
• Right front
• Left front
  

You have to clamp the flexible break hose with the appropriate tool that will not damage hose so that no pressure can go back up the break line when then piston is wound back.You crack the bleed nipple just enough that it only flows out when the pressure from the piston being wound back in pushes it out.Once piston is all the way back in retighten the bleed nipple,reassemble caliper etc and bleed.The reason you vent off fluid this way is not to put back pressure on the ABS,Bleeding the brakes is easier and the worst of the fluid(most stressed)is evacuated from the brake lines.Last thing top up the master cylinder with exactly the same fluid that is in the vehicle.Mixing fluids can be hazardous in respect of the ABS and seals throughout the brake system.When winding your pistons take special care as the pistons wind back in in opposite directions.

You need to get hold of a wind back tool. The pistons screw into the caliper and can be very stiff. Hahnes manual says you can use pliers but I've had no joy using that method!