Aborn Regulator Fits For Audi A4 A6 A2 Vw Passat Benz Slk M-Class 0031542406 100%Brand New,unused, unopened, undamaged item in its original packaging OE Number:F00M145200, F00M145225, F00M145209, F00M145350, 038903803B / 0031542406 / A0031542406 / 0031542406(Please confirm parts number before purchase) Voltage Set Point:14.5V,Slipring OD:14mm,REG BO 12V,Regulation:A-Circuit Easy to Install Strict Factory QC Test