1. Using C-BUS smart chip, it is highly compatible with the original car equipment and can effectively suppress interference to the original car computer. 2. Replaces original vehicle parts and does not require programming. 3. Voltage: 12V 4. OE: 130732931201 5. Applicable models: Suitable for Mercedes A-Class W176 Suitable for Mercedes B-Class W246 Suitable for Mercedes C250 C350 C63 AMG 2012-2014 Suitable for Mercedes GLK300 GLK350 2013-2014 Suitable for Mercedes ML350 ML500 ML550 ML63 AMG 2012-2014 Suitable for Mercedes GL350 GL450 GL500 GL550 GL63 AMG 2012-2014 Suitable for Mercedes SL500 SL550 SL63/SL65 AMG 2013-2014 Suitable for Mercedes SLK250 SLK350 SLK55 AMG 2013-2014