2014 Mk6 Sportswagon, trying to flush brakes

[wkt60]

Replacedñ all pads and rotors today then moved on to brake flush.
Hooked up pressure bleeder, ( had to remove battery,couldn't get master cylinder cap off) replaced battery.
Using 10psi of pressure I get nothing from any bleeder valve.......
What have I missed?, brakes were working fine before my work
Thanks in advance for any help

 

[p.e.fletcher]

10psi isn’t enough to pressure bleed. Erwin states there must be a positive pressure of 2bar to pressure bleed a MK6. You need to go higher but don’t go over 29psi.

 

[wkt60]

Thanks,was timid on the pressure, will try first thing tomorrow.

 

[wkt60]

At 29 psi, still nothing from any bleeder valve....
Nothing was opened during brake job, all hoses remained intake

 

[p.e.fletcher]

At 29 psi, still nothing from any bleeder valve....
Nothing was opened during brake job, all hoses remained intake

That is odd. Are you saying you cracked every bleeder and nothing from any of them? I’ve had bleeders get clogged and had to be thoroughly cleaned or replaced, but all four sounds suspect. What if you try old-school method with a helper on the pedal? The bleed order is a bit odd compared to other cars:

1. front left
2. front right
3. left rear
4. right rear

 

[oilhammer]

Try pushing on the brake pedal with one bleeder loose, see if you can push fluid out. You've got something amiss here.

 

[Nuje]

As on a recent brake bleed that I did....could be someone before you was a little over-zealous and "followed" VW's instructions on the bleeder screws by putting some (note: SOME!!; not "lots") thread sealant on the bleeder screw threads.

I couldn't get anything to bleed out either, so I pulled the bleeder screws right out, took a fine pick to the clogged opening at the bottom, blew compressed air through in both directions, reinstalled, and then like magic, the fluid bled through nice and easily.

Pro tip: As recommended / instructed in the manual, if you're going to do this (basically open up the hydraulic system at the calipers), press and then have something hold down the brake pedal. It keeps the fluid from trickling out as you're working on the "open" lines.

 

[wkt60]

Thanks for all the great advice,I've checked the bleeders,seem to be all clear,with no apparent thread sealer.
Don't have a helper to do it the old fashion way.
Booked an appointment with my mechanic, next Thursday, hes going to let me watch to see what I'm doing wrong
Will keep you updated,thanks again for your help.