C 350 (204.056) V6-3.5L (272.961) (2008)
SmartKey With Keyless-GO Ignition Switch Positions
SmartKey with KEYLESS-GO
The SmartKey with KEYLESS-GO must be located in the vehicle.
Insert KEYLESS-GO start/stop button 1 into starter switch 2 (if not inserted already).
Make sure the automatic transmission is set to P.
Do not depress the brake pedal.
Note:
Depressing the brake pedal will cause the engine to start when the engine start/stop button is depressed
Shown on model 164 others will be similar