Installation tips: carefully remove the mirror glass to access the screws/clips inside; Release them to further take off the cap/cover, and then directly replace the dynamic flashing LED sidemarker strip assy underneath the cover. After the installation, please lock the vehicle, wait about 5 sec, and then turn on the engine to allow the onboard computer to reset itself before testing function.Want to give your Mercedes a unique appearance with increased safety and style? This page features the iJDMTOY sequential switchback LED side mirror turn signal light assembly for the following vehicles. Directly replace the factory OEM mirror turn signals with LED sequential side mirror turn signals full of super bright LED dynamic lights and replace OEM Part # A2129067501 A2129067401. Easy to install, simply remove the mirror glass and mirror cover and directly replace the OEM mirror turn signal lamp assembly. Please note that since this product has a dark smoked lens and the sequential feature, it will appear slightly dimmer than the original side mirror lamp. Give your Mercedes a unique premium Euro look with excellent LED lighting and increased safety and style! IJDMTOY (MotoringMax) was founded in 2004 and has since become one of the largest automotive LED lighting retailers in the United States. We are located in Los Angeles, California and carry the most complete LED lights and accessories for all the cars and trucks. And we will do our best to assist you. Your satisfaction is our utmost concern! We are not responsible for international duty or custom charge. The item "Side Mirror Sequential Blink Turn Signal Light For Mercedes C E S CLA CLS GLK" is in sale since Thursday, December 13, 2018. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Lighting & Lamps\Light Bulbs\LED Lights". The seller is "motoringmax" and is located in El Monte, California. This item can be shipped to United States, Canada, United Kingdom, Japan.