Mercedes-Benz GLC : Notes on off-road driving / ECO start/stop function

Operation of the ECO start/stop function

The ECO start/stop function is not available in all drive programs, depending on the engine. Observe the status display in the multifunction display for this.

The engine is switched off automatically in the following situations if all vehicle conditions for an automatic engine stop are met:

You brake the vehicle to a standstill in transmission position or .

Vehicles with a 48 V on-board electrical system: You depress the brake pedal when traveling at a low speed.

If the system has detected one of the following situations, the engine will not stop:

• You stop at a stop sign and there is no vehicle in front of you.
• The vehicle that stopped in front of you starts up again.
• You maneuver, turn the steering wheel sharply or engage reverse gear.

If the system detects an intelligent stop inhibitor, for example, a stop sign, the engine will not stop.

If you activate the HOLD function or engage the park position , the engine can be switched off in spite of an intelligent stop inhibitor.

The engine is restarted automatically if:

• You engage transmission position or .
• You depress the accelerator pedal.
• An automatic engine start is required by the vehicle.
• You release the brake pedal.
• Vehicles with a 48 V on-board electrical system:
  • You release the brake pedal on a downhill gradient and the vehicle does not roll.
  • The vehicle rolls on a downhill gradient and does not automatically enter glide mode at 15 mph (20 km/h).

ECO start/stop function symbols in the multifunction display:

• The symbol (green) appears when the vehicle is at a standstill: the engine was switched off by the ECO start/stop function.
• The symbol (yellow) appears when the vehicle is at a standstill: not all vehicle conditions for an engine stop have been met.
• Neither the nor symbol appears when the vehicle is at a standstill: an intelligent stop inhibitor was detected, for example, a stop sign.

If the engine was switched off by the ECO start/ stop function and you leave the vehicle, a warning tone sounds and the engine is not restarted. In addition, the following display message appears in the multifunction display:

Vehicle Ready to Drive Switch the Ignition Off Before Exiting

If you do not switch off the ignition, it is automatically switched off after three minutes.