Yes
Premium fuel is required in ALL Mercedes-Benz.
Premium. Always.
premium gas
The 2003 Mercedes-Benz SLK-Class runs on premium unleaded (required).
The 2014 Mercedes-Benz M-Class runs on premium unleaded (required).
The 2005 Mercedes-Benz SL-Class runs on premium unleaded (required).
The 2014 Mercedes-Benz G-Class runs on premium unleaded (required).
The 2007 Mercedes-Benz S-Class runs on premium unleaded (required).
The 2012 Mercedes-Benz G-Class runs on premium unleaded (required).
The 2014 Mercedes-Benz GLK-Class runs on premium unleaded (required).
The 2012 Mercedes-Benz E-Class runs on premium unleaded (required).
The 2007 Mercedes-Benz SL-Class runs on premium unleaded (required).