inside the gas door it says premimum fuel only
The 2003 Mercedes C230 is recommended to use premium unleaded gasoline with an octane rating of 91 or higher. Using a lower grade of gasoline may lead to reduced performance and efficiency, as well as potential engine knocking. Always refer to the owner's manual for the most accurate recommendations regarding fuel type.
The 2003 Mercedes-Benz SL-Class runs on premium unleaded (required).
The 2003 Mercedes-Benz C-Class runs on premium unleaded (required).
The 2003 Mercedes-Benz M-Class runs on premium unleaded (required).
The 2003 Mercedes-Benz G-Class runs on premium unleaded (required).
The 2003 Mercedes-Benz CL-Class runs on premium unleaded (required).
The 2003 Mercedes-Benz E-Class runs on premium unleaded (required).
The 2003 Mercedes-Benz S-Class runs on premium unleaded (required).
The 2003 Mercedes-Benz SLK-Class runs on premium unleaded (required).
75 liters
The Mercedes CLK320 typically requires premium unleaded gasoline with an octane rating of 91 or higher. Using the recommended fuel helps ensure optimal performance and efficiency of the engine. Always check the owner’s manual for specific fuel recommendations for your model year.
underneath the drive side passage seat in fuel tank...