Start/Stop* - the engine does not stop
Some engine and gearbox combinations are equipped with a Start/Stop function which engages in the event of e.g. stationary traffic or waiting at traffic lights.
Although the Start/Stop function is activated, the engine does not always stop automatically.
The engine does not auto-stop if:
| Conditions | M/A1 |
|---|---|
| the car has not first achieved approx. 8 km/h (5 mph) after a key start or the last auto-stop. | M + A |
| the driver has opened the seatbelt's buckle. | M + A |
| the capacity of the starter battery is below the minimum permissible level. | M + A |
| the engine does not have normal operating temperature. | M + A |
| ambient temperature is around freezing point or above approx. 30 °C. | M + A |
| the windscreen's electric heating is activated. | M + A |
| the environment in the passenger compartment differs from the preset values2 - indicated by the ventilation fan running at a high speed. | M + A |
| the car is reversed. | M + A |
| the starter battery's temperature is below freezing point or too high. | M + A |
| the driver makes greater steering wheel movements. | M + A |
| the exhaust system's particulate filter is full - the temporarily disengaged Start/Stop function is reactivated as soon as an automatic cleaning cycle has been performed (see Diesel particle filter (DPF)). | M + A |
| the road is very steep. | M + A |
| a trailer is connected electrically to the car’s electrical system. | M + A |
| the bonnet has been opened3. | M + A |
| the gearbox does not have normal operating temperature. | A |
| the atmospheric air pressure is less than equivalent to 1500-2500 metres above sea level - the current air pressure varies with the prevailing weather conditions. | A |
| adaptive cruise control Queue Assist is activated. | A |
| the gear selector is moved out of the D position to S position4 or "+/-". | A |