Adjusting the steering wheel manually 
 
 
 
 
 Adjusting the steering wheel electrically The steering wheel can be adjusted when the power supply is switched off. 
 
 
 Switching the steering wheel heater on or off Requirements: 
 
 
 When you switch the ignition off, the steering wheel heater switches off.  | 
Mercedes-Benz C-Class (W205) 2015 - 2021 Owners Manual > Parking: Standby mode (extension of the starter battery's
period out of use)
   Standby mode function This function is not available for all models. If standby mode is activated, the vehicle can be parked for an extended period of time without losing power. Standby mode is characterized by the following: The starter battery is preserved. The maximum non-operational time out of  ...