Specifications：Hign-concerned Chemical:None：Brand Name:CNZKO：Origin:Mainland China：Item Type:Mirror & Covers：Auto Dimming Blind spot monitoring Rear Mirror Glass For BMW 3 Series G20 G21 5 Series G30 G31 G32 G38 7 Series G11 G12 51167407157 51167407158：Fit for:：Note: This applies only to left-hand drive vehicles, not to right-hand drive vehicles.：For BMW 3 Series G20 G21 2020：For BMW 5 Series G30 G31 G32 G38 2018 2019 2020：For BMW 6 Series G32 GT：For BMW 7 Series G11 G12 2016 2017 2018 2019 2020：For BMW 8 Series F91 F92 F93 M8 G14 G15 G16 Gran coue F90 m5：1.Precision Compatibility for BMW Models：Engineered for BMW 3 Series (G20/G21), 5 Series (G30/G31/G32/G38), 7 Series (G11/G12), and 8 Series (G14/G15).：Direct replacement for OEM part numbers 51167407157 (Left) and 51167407158 (Right).：2. Seamless fit with original mounting brackets and electrical connectors.：Advanced Auto-Dimming Technology：Electrochromic (EC) glass with 1.5V low-voltage operation reduces nighttime glare by up to 90%.：Instant dimming response (<0.5s) via embedded light sensors and ion storage layers.：Maintains >70% transparency in clear state and <10% in dimmed state (UV blocking: 99.9%).：3.Integrated Blind Spot Monitoring (BSM)：24GHz microwave radar sensors cover 3m x 8m zones on both sides.：Real-time alerts via LED indicators on mirror housing (supports voice warnings on compatible BMW models).：Eliminates manual head checks during lane changes.：4.Premium Build & Easy Installation：ABS plastic frame with corrosion-resistant coating (CE-certified).：Clip-on design for DIY installation (10-15 mins per mirror).：Built-in 2-pin heater (50W) prevents fogging/icing in temperatures down to -30°C.：5.Certified Safety & Warranty：Complies with ECE R44/04 and GB 9656 safety standards.