Smart Key battery

See also:

Checking the coolant level
Only check the coolant level when the vehicle is on a level surface and the engine has cooled down. Turn the SmartKey to position 2 () in the ignition lock. On vehicles with KEYLESS-GO, press ...

Bag hooks
The bag hook can bear a maximum load of 6.6 lbs (3 kg). Do not use it to secure a load. There is a bag hook in the cargo compartment on the left-hand side. – Press the marking on bag ...

Roadside Assistance button
► Open the stowage compartment under the armrest. ► Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assi ...