Audi AG is a German automobile manufacturer that designs, engineers, produces, markets and distributes luxury vehicles. PNG&SVG Download, Logo, Icons, Clipart. Graphic Design Elements (AI, EPS, SVG, PDF, PNG, Transparent). Channel 002: Wheel Pulse. The wheel pulse describes the amount of wheel pulses per revolution. If value 0 is entered the system calibrates automatically itself after several kilometers and inputs a value. 43 = Audi A3 (8P) / Audi TT (8J) 45 = Audi A4 (8E).