Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: 2013 Audi A8L 3.0 Air introduced into Master Cylinder

  1. #1
    Verified VCDS User
    Join Date
    Mar 2015
    Location
    Rhode Island
    Posts
    325
    Post Thanks / Like

    2013 Audi A8L 3.0 Air introduced into Master Cylinder

    Hey everyone I don't have any DTC errors but would be willing to post a full scan if requested without any issues.
    I'll start from the top with my issues and procedures.
    I had my light come on saying replace brakes so I purchased my brake pads and noticed the light was on because of a brake wear sensor being broke. At this point I said I'll replace the pads anyways because they had about 6 months or so left. So after replacing everything I love doing the Gravity bleed because it has never failed me. I raised my car on my lift and removed all Bleeder screws from the Calipers and made sure master cylinder was full. This is where it gets fun, Long story short I had an emergency with my chid and completely forgot about my car . Yes I ran the Master cylinder dry I believe, I then filled everything up and this time waited by the car while doing it. This didn't help at all with a completely soft pedal, I then had the wife pump the brakes and I bleed them in the sequence stated in erWin. Still no luck, I then used my Vacuum bleeding again nothing, I then used my Mitivac and again same thing. The only thing I can think of now is to remove the master Cylinder and bench bleed it and then do the normal brake bleeding sequence. My questions is am I forgetting something? Any thoughts? I'm worried I may have introduced air into the ABS system . I do see there is a brake bleeding option is 03-Basic Settings with 3 different sequences to select from but I didn't want to mess around with that without more guidance. Please help me out I'm not a complete professional but most of you know I won't give up and will do what he is told like a good boy . Thanks!!!! BTW I have been doing the bleeding for about 2 days now I will have it sent to s shop if I really need to but I would like to do things on my own.

  2. #2
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
    Location
    1001 State Route 17K Montgomery New York 12549
    Posts
    19,199
    Post Thanks / Like
    Have you tried a reverse push bleed at caliper directly & where you inject fluid into the caliper, then extract fluid at tank on master cylinder?

    This is how we do it on planes as per FAA and MIL spec requirements.

    Most good mighty vac tester kits support this function.

    Last edited by Jack@European_Parts; 01-29-2020 at 07:03 PM.
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  3. #3
    Verified VCDS User
    Join Date
    Mar 2015
    Location
    Rhode Island
    Posts
    325
    Post Thanks / Like
    Quote Originally Posted by Jack@European_Parts View Post
    Have you tried a reverse push bleed at caliper directly & where you inject fluid into the caliper, then extract fluid at tank on master cylinder?
    Hey Jack, I have not tried that unfortunately I donít have anything to force push fluid into the calipers to make this happen.

  4. #4
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
    Location
    1001 State Route 17K Montgomery New York 12549
    Posts
    19,199
    Post Thanks / Like
    Does your mighty vac support a push, if not maybe get one?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  5. #5
    Verified VCDS User
    Join Date
    Mar 2015
    Location
    Rhode Island
    Posts
    325
    Post Thanks / Like
    Quote Originally Posted by Jack@European_Parts View Post
    Does your mighty vac support a push, if not maybe get one?
    Unfortunately it only sucks, I purchased it to do oil changes lol. I could get one, Iíll have to check if there is a local retail store or order on Amazon. I was hoping to get it up and going ASAP as my job requires a lot of driving lol. I assume not to use the option bleed brakes in 03?

  6. #6
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
    Location
    1001 State Route 17K Montgomery New York 12549
    Posts
    19,199
    Post Thanks / Like
    Well you could remove a line at master and add a line into fluid container at one caliper per time and one by one suck it too, no?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  7. #7
    Verified VCDS User
    Join Date
    Mar 2015
    Location
    Rhode Island
    Posts
    325
    Post Thanks / Like
    Quote Originally Posted by Jack@European_Parts View Post
    Well you could remove a line at master and add a line into fluid container at one caliper per time and one by one suck it too, no?
    So to confirm your saying remove one line from the master cylinder and cover the hole on the master cylinder. Then put the line into a bin full of brake fluid, at the time use my vacuum bleeder at each caliper? If so this will also get the air out of the master cylinder? Also this would do the trick right?

    Phoenix Systems (2104-B) V-5 Reverse Brake Bleeder, Light Duty One Person, Fits all makes and models
    Last edited by Uwe; 01-29-2020 at 07:34 PM. Reason: fixed QUOTE tags

  8. #8
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
    Location
    1001 State Route 17K Montgomery New York 12549
    Posts
    19,199
    Post Thanks / Like
    Did I instruct, I was merely asking questions, you should always follow the RTFB, right?

    If you removed lines at master you could affectively bench bleed master at same time & while placing bleeder caps on each line and bleeders closed at each respective caliper to prevent gravity right?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  9. #9
    Verified VCDS User
    Join Date
    Mar 2015
    Location
    Rhode Island
    Posts
    325
    Post Thanks / Like
    Quote Originally Posted by Jack@European_Parts View Post
    Did I instruct, I was merely asking questions, you should always follow the RTFB, right?

    If you removed lines at master you could affectively bench bleed master at same time & while placing bleeder caps on each line and bleeders closed at each respective caliper to prevent gravity right?
    Sorry for Assuming you was instructing me. I'll ask this instead, If I purchased this Phoenix Systems (2104-B) V-5 Reverse Brake Bleeder right now. Would This in theory bleed the whole brake system? I assume it should because Pushing fluid in reverse as you stated and the air is popping out of the master cylinder top. Would this be a fair assumption? As always thanks for your help.

  10. #10
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
    Location
    1001 State Route 17K Montgomery New York 12549
    Posts
    19,199
    Post Thanks / Like
    Some questions the answers are indeed self evident huh?
    Is this the mechanical repair section of the forum?
    Who are you better yet who am I?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •