The display indicates that the
conditions for an automatic en‐
gine stop have not been met.
Total time with switched-off engine
ECO PRO, refer to page 280,
driving mode: depending on the
vehicle equipment, the total time
that the engine has been
switched off using the Auto Start/
Stop function is displayed on an automatic en‐
The total time is automatically reset every time
the vehicle is refueled.
The engine is not switched off automatically in
the following situations:
▷ In case of a steep downhill grade.
▷ Brake not engaged strongly enough.
▷ The external temperature is high and auto‐
matic climate control is running.
▷ The car's interior has not yet been heated or
cooled to the required level.
▷ Where there is a risk of window condensation
when the automatic climate control is
▷ Engine or other parts not at operating tem‐
▷ Engine cooling is required.
▷ The wheels are at a sharp angle or the steer‐
ing wheel is being turned.
▷ Vehicle battery is heavily discharged.
▷ At higher elevations.
▷ The hood is unlocked.
▷ HDC Hill Descent Control is activated.
▷ The parking assistant is activated.
▷ Stop-and-go traffic.
▷ Steptronic transmission: selector lever posi‐
tion in N or R.
▷ After driving in reverse.
▷ Use of fuel with high ethanol content.
Starting the engine
The engine starts automatically under the follow‐
▷ By releasing the brake pedal.
▷ When Automatic Hold is activated: press the
After the engine starts, accelerate as usual.
After the engine switches off automatically, it will
not start again automatically if any one of the fol‐
lowing conditions are met:
▷ The driver's safety belt is unbuckled and the
driver's door is open.
▷ The hood was unlocked.
Some indicator lights light up for a varied length
The engine can only be started via the Start/Stop
Even if driving off was not intended, the deacti‐
vated engine starts up automatically in the fol‐
▷ Excessive warming of the car's interior when
the air conditioning is switched on.
▷ Excessive cooling of the car's interior when
the heating is switched on.
Online Edition for Part no. 01402896703 - X/18