See also:

Warning and indicator lamps
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Qualified specialist workshop
An authorized Mercedes-Benz Center is a qualified specialist workshop. It has the necessary specialist knowledge, tools and qualifications to correctly carry out the work required on your vehi ...

Closing
Replace the fuel filler cap and turn it clockwise. The fuel filler cap audibly engages. Close the fuel filler flap. If you drive with the fuel filler cap open, the reserve fuel warning lamp ...