Since cars produced in different countries and years will be different, in addition to confirming the model, you also need to confirm the size before buying.

Specification:

Type: LED license plate light 
Placement on the vehicle: rear 
Number of LEDs: 3-SMD 
Voltage: DC 12 V 
Power: 2 W 
Material: ABS 
LED color: white xenon 
Size: 7 * 2.3 * 1.7 cm 
Manufacturer Part Number: 2518200166 / EEN 251 820 01 66 / A2518200166 

Features:
1.100% new 
2. Come with 3-SMD xenon white light color 
3. Low consumption and high lumen output 
4. Built-in load resistors and canbus control unit to avoid problems with OBC error code 
5. Environmentally friendly and luxury, perfectly fit cars.
6. Easy installation, no additional accessories required, just plug and play. 

Application

2010-2012 For Mercedes-Benz GL350 
2006-2012 for Mercedes-Benz GL450 
2006-2012 for Mercedes-Benz GL500 
2008-2012 For Mercedes-Benz GL550 
2007-2009 for Mercedes-Benz GL320 
2007-2009 for Mercedes-Benz ML320 
2005- 2011 for Mercedes-Benz ML350 
2011 for Mercedes-Benz ML450 
2005-2011 for Mercedes-Benz ML500 
2007-2011 for Mercedes-Benz ML550 
2007-2011 for Mercedes-Benz ML63 for AMG 
2006-2011 for Mercedes-Benz R350 
2007-2009 for Mercedes-Benz R320 
2006-2008 for Mercedes-Benz R500 
2006-2012 for Mercedes-Benz X164 Package 

Includes: 
2pcs LED license plate light (left + right）