Brake lines 2005 VW Jetta

25

Asked by Rwoodstock May 20, 2018 at 10:38 PM about the 2005 Volkswagen Jetta GL

Question type: Maintenance & Repair

My daughters 2005 VW Jetta brake pedal goes all the way to the floorboard before the car will stop. So I decided I would take a look and see if I could fix it. I started to bleed the brake lines and noticed her rear brakes needed to be replaced. I replace the rotors and pads and realized the driver side rotor was very rusted and the pad was never touching the rotor. So I thought the caliper was shot so I decided to replace both of them. I put everything back together and went to bleed the lines.
I started with the right rear then the left rear then the right front and tried to finish with the driver side front. But I soon realized the bleeder screw was replace by a threaded screw with no head or anyway to grip it. I could only get fluid from the right rear nothing from the other two. ( could not do driver side front). The front right had some grey sludge at first but then nothing, the driver side rear I got nothing. Maybe a couple bubbles but that's it.
Not sure what to do because we put the car on a hoist and the right rear brake locked up. The left rear nothing happened at all the piston did not engage. Front right did not work at all and the driver side front did work.
So I have one brake  working. Driver side front.
What should I do? Going insane!!!
Rob

2 Answers

80

You need to test the ABS pump. If someone has a decent scanner, like Maxis or Verus or the dealer VCDS or VAG-COM. Try running the pump and open one line at a time to observe fluid coming from the pump. Those ABS pumps are known to fail. If you can communicate with it, you need to pull the code from the module before you throw it out. Use a good scanner and log in to the module and write down the code. You can swap the pump with a new one with the same part number (the last letter doesn't matter as much, preferably a later one alphabetically). Once you swap it, you have to run the pump again to bleed. Adaptations must also be done with the steering angle sensor, etc. You'll need a code for that. Login using 40168 to login. This will enable adaptations.

2 people found this helpful.
25

Turned out all I had to do was replace the master brake cylinder. Took less than an hour and working great now!

2 people found this helpful.

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