See also:

Before changing a fuse
•► Park the vehicle and apply the parking brake. •► Switch off all electrical consumers. •► Remove the SmartKey from the ignition lock. The fuses are located in various fuse b ...

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 ...

System self-test
The indicator lamp illuminates when you: - turn the SmartKey to position 1 or 2 in the ignition lock - on vehicles with KEYLESS-GO, press the Start/Stop button once or twice If an adult o ...