I am having a problem with the brakes in a 2003 Jetta 2.0L.
The drivers side rear brake line has no fluid. I first loosened the bleeding screw (nipple) in order to bleed the brakes, no fluid came out despite pumping, both with car on and off. I have unscrewed the brake line from the caliper and this does not have fluid either.
All other brake lines appear to have fluid. I cannot find a leak in the system.
I recently replaced the brakes in this car (few weeks ago), had no issue bleeding this or any caliper then, brakes were fine. This issue arose after I had the tires changed about 3 days ago, car was barely safe to drive home.
I am at a loss as to what might be causing this. All other lines appear to work fine. I replaced the master cylinder in hope that might solve this problem but to no avail. (I did bleed the master cylinder)
Does this car have a proportioning valve or a different part that might be causing this?
I noticed that the brake pedal makes a clicking or snapping sound when pressed about 2/3 of the way down. I know that this sound did not occur previously (it is not the sound of the shift lock releasing, it sounds like a fuse almost).
Thank you for your help.