Have a helper pump the brake pedal on the 2001 Jetta several times then hold it down. With the pedal down, loosen the bleeder valve at a wheel cylinder and let some fluid flow til the pedal goes to the floor. Close the valve and repeat until the fluid does not have any air coming out with it. Do the same thing at the three other wheels.
YES!
Replace the brake line, bleed the brake. top up with brake fluid. Done.
Remove the old line. Measure how long it is. Purchase new line from an auto parts store. Bend it to fit and install. Bleed system.
Replace and bleed line
replace the brake line and then bleed the brakes
Always best to bleed both sides if you change a brake line. EG: Both front or both rear.
If you have not opened the brake system ie. taken off any lines or lost any fluid, you should not have to bleed a brake system. Brake jobs are best done by experienced technicians.
You can't bleed it any other way, you have to bleed it through the bleeder valve to get all the air out.
replace the line and fill and bleed breaks.
Sounds Like You Have Air In Your Brake Line Or Lines. Bleed The System. If This Don`t Help And You Brake Shoes Or Brake Pads Are OK. Then It Is Most Likely The Master Cylinder. GOOD LUCK
You have to remove the brake line making sure you have something to catch to fluid that will drain out. Plug to the line to prevent the system from draining completely. Remove/replace the brake line and refill the master cylinder reservoir and bleed the air from the system( if it is the hose at the caliper, you usually only need to bleed that wheel). If the reservoir drained completely you would have to run a ABS/bleed system test using a scan tool. After the air is all bleed out, recheck/top off the reservoir.
You probably have air in the brake hydraulic line. Bleed the air out of the brake lines.