Long-time viewer, new poster here!
I've overhauled the brakes and performed a bleed of all 4 callipers, plus the clutch on my 2003 A4 1.8TQ, but the pedal still seems soft to me, with bite only starting around 1/4" from the top of the pedal. I suspect it may be due to air in the ABS module as the pedal firms up a little after doing a hard stop and making the ABS cut in.
I would like to perform the ABS output test whilst bleeding the brakes again, but I can't get it to work :-( Using the output test just comes back with test complete immediately and without running the ABS pump or anything. I followed the Ross-tech guide but to no avail - same test complete problem.
I've got a fully registered version of VAG-COM 409.1 but one of the cheap blue USB cables from eBay. Is this where my problem lies, or am I missing something?
Many thanks for your help.