Audi A3 2010 brake bleeding procedure

Audi A3 2010 brake bleeding procedure

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Discussion

Belle427

Original Poster:

8,965 posts

233 months

Tuesday 14th March 2023
quotequote all
I have renewed the rear brakes and replaced a caliper on the above car today, didnt introduce much air into the system or so i thought.
Im having trouble with the bleed procedure, i tried my trusty gunson eezi bleed on 18 psi and proceeded to go around the calipers but im getting hardly any fluid flow.
Brakes work but are very spongy.
Im seeing conflicting opinions on how to bleed these, was thinking of trying the old fashioned method of someone pumping the pedal next but dont want to damage any seals.
Any tips please?
i do have vcds if its needed.

sunnyb13

947 posts

38 months

Tuesday 14th March 2023
quotequote all
Old fashioned way is fine

Belle427

Original Poster:

8,965 posts

233 months

Wednesday 15th March 2023
quotequote all
Ok thanks.

keo

2,060 posts

170 months

Wednesday 15th March 2023
quotequote all
Sorry I can’t help with the tears but I have bled my front brakes the old fashioned way and it was ok.

Belle427

Original Poster:

8,965 posts

233 months

Wednesday 15th March 2023
quotequote all
Tried it last night just pushing the brake pedal down over half way and seems to have worked, not sure why the pressure bleeder won't do it.

MattMF1

238 posts

155 months

Monday 20th March 2023
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It’s a right pain to do it correctly, but worth it depending on how much air is in the system. I replaced the ABS module on a MK5 golf and it needed the bells and whistles procedure to get it spot on.

Connect a Pressure bleeder, connect two hoses to the front two calipers and put into a bottle submerged in brake fluid and undo both bleed nipples, then do the VCDS brake bleed procedure. Repeat the same with the rears .

Belle427

Original Poster:

8,965 posts

233 months

Tuesday 21st March 2023
quotequote all
Thanks I will do that when the brakes have bedded in.
Strange thing is even the pedal bleed wasn't providing the usual pressure I'd expect at the bleed nipples.
Brakes are working fine.