See also:

DEF refill bottle
DEF refill bottles can be obtained at many gas stations or at an authorized Mercedes-Benz Center. Refill bottles without a threaded cap do not provide overfill protection. DEF may leak if over ...

Product information
Mercedes-Benz recommends that you use genuine Mercedes-Benz parts, conversion parts and accessories that have been approved for the type of vehicle. Mercedes-Benz tests genuine parts as well as ...

Warning and display messages in the multifunction display
•► Activate ATTENTION ASSIST using the onboard computer Symbol 1 appears in the multifunction display. If ATTENTION ASSIST is active, you will be warned no sooner than 20 minutes after ...