Observe the notes on auxiliary heating More.

The hot-water auxiliary heater has a heater booster, stationary heater and stationary ventilation function. In addition, the auxiliary heating system heats the engine coolant to protect the engine.

The stationary heater automatically adapts its operating mode to changes in outside temperature and weather conditions. It is therefore possible that the stationary heater may switch from ventilation to heating mode or from heating to ventilation mode.

The stationary heater will automatically switch itself off after a maximum of 50 minutes. The heater booster function helps to heat up the vehicle while the engine is running and at low outside temperatures.

You can set up to three departure times for pre-entry climate control by remote control or via the multimedia system. The switch-on time is then calculated based on the outside temperature and the activated departure time. This means that your vehicle is preheated or precooled by the set departure time.

If the departure time is reached and the engine is not started, the auxiliary heating will continue to run for approximately five more minutes. It will then switch off automatically.

When the auxiliary heating is heating and the engine is started, the heater booster function of the auxiliary heating will be activated.

When the auxiliary heating is ventilating and the engine is started, the auxiliary heating will be automatically switched off.