bobblezb6

Hey audi world i have a 2004 a4 1.8t Quattro i bought the car not to long ago person told me they changed the master but didn't no how to bleed it so I've tried bleeding it no brake pedal so i changed the master again it got a lil better but still not 100% upgraded brakes to s4 brakes with new stainless steel lines problem still occurring all lines have fluid but pedal stays soft now all the brake related lights are on abs traction control and brake light keeps flashing and my speedo doesn't wrk stays at zero even when driving any1 have any idea i was told its the brake booster i did research might be abs module help please

John535is

From memory, when you change the brake booster there is an adjustment on the push rod that adjusts the pedal travel. I would check that first since someone has changed the master.

Did you bleed the ABS with a vag-com or similar in basic settings?

bobblezb6

Well i didn't change booster yet i was told it might be that and i just bled the brakes regular didn't bleed abs how would i do that