A5 Performance & Mods
Audi Hill Hold Assist retrofit done
Today I've tried to retrofit this awesome function. I managed to buy used but 100% operational switch 8K1 927 225 C WEP from some damaged s5 and required 2 connection pins 000 979 025 E for abs pump and 3 for AHH switch 000 979 009 E. I connected pin 12 of...