BMW hazard switch for E21 320i, (80-83). Also fits E23 733i, (78-79). BMW part number is 61 31 1 364 525. Part is original BMW, new in the box and never installed. The button does stay in the "Off" position. I am selling inventory from my BMW-Mercedes repair shop of 29 years. See my other listings for more BMW and Mercedes parts. Thank you for looking.