2005 A6 3.2 Brake Bleeding Sequence

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08-26-2021, 09:48 PM

#21

kelisko

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Quote:

Originally Posted by A6Gary

Mystery solved, found the difference in Group 47. The front–to–back sequence is for bleeding the ESP hydraulic unit, the rear–to–front sequence is for bleeding for a fluid change of the complete system (the 2–yr maintenance service). Bentley also states to apply pedal pressure if necessary to support bleeding the ESP hydraulic unit.

I beg to differ. The manual clearly says this:

Quote:

Vehicles with Electronic Stabilization Program (ESP), bleeding procedure
Bleeding sequence for left and right hand drive vehicles:
1 - Left front brake caliper
2 - Right front brake caliper
3 - Left rear brake caliper
4 - Right rear brake caliper

This sequence is not for bleeding the ESP system. It is for bleeding vehicles equipped with the ESP system. The manual does not say anything about cars without ESP which means ESP must have been a standard feature on all Audi vehicles by then.

I used to bleed the other way around until I posted the video below and someone pointed out that the manual says otherwise. I looked it up and he was right!

Quote:

https://youtu.be/NiE8mPMIhs8