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Driving -> Start/stop system for Your Volkswagen Transporter Van Seventh Generation (2021-2025)

Start/stop system  
The start/stop system automatically switches the engine off when the vehicle is coming to a stop and when  
stationary. When required, the engine restarts automatically.  
Always switch off the start/stop system manually when driving through water.  
Indicator lamps  
If the indicator lamp  
lights up, the start/stop system is available and automatic engine stop is active.  
The start/stop system is not available if the indicator lamp  
is flashing  
.
Switching on the start/stop system  
The function is automatically activated every time the ignition is switched on.  
1. To stop, press and hold the brake pedal. The engine switches off shortly before the vehicle reaches a complete  
standstill or when the vehicle is stationary.  
2. Take your foot off the brake pedal or depress the accelerator to restart the engine.  
Important preconditions for automatic engine switch-off  
The driver is wearing their seat belt.  
The driver door is closed.  
The bonnet is closed.  
Engine minimum temperature has been reached.  
The temperature of the vehicle interior is within the preset temperature range, and the humidity level is not too  
high.  
The defrost function of the air conditioning system is not switched on.  
The charge level of the 12-volt vehicle battery is sufficient.  
The temperature of the 12-volt vehicle battery is not too low or too high.  
The vehicle is not on a steep incline.  
The steering wheel is not turned too sharply.  
The windscreen heating is not switched on.  
Reverse gear is not engaged.  
The Park Assist system is not active.  
When the conditions for automatic engine switch-off are fulfilled only while the vehicle is stationary, the engine can  
also switch off subsequently, e.g. after switching off the defrost function.  
Conditions for an automatic restart  
The engine can start automatically under the following conditions:  
If the temperature inside the vehicle substantially increases or decreases.  
If the vehicle rolls on.  
If the electric voltage of the 12-volt vehicle battery drops.  
The following applies in general here: the engine always starts again automatically when required by the detected  
situation and the vehicle.  
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Conditions that require a manual engine start  
The engine must be started manually in the following conditions:  
If the driver door is opened.  
If the bonnet is opened.  
Activating and deactivating the start/stop system manually  
1. In the menu selection in the Infotainment system, tap the Vehicle function button.  
2. Tap the Status function button.  
3. Tap the Start/stop function button.  
When the start/stop system is deactivated, the Start/stop function button has a blue background.  
If the start/stop system has switched the engine off, it will start again as soon as the system has been deactivated  
manually with the Start/stop function button.  
Always deactivate the start/stop system manually when driving through water.  
Start-Stop mode with automatic Adaptive Cruise Control (ACC)  
The engine will be switched off after the Adaptive Cruise Control(ACC) has brought the vehicle to a standstill with an  
active braking intervention.  
In the following instances, the engine will restart when the ACC is active:  
If the accelerator is depressed.  
When the ACC has resumed speed and distance control.  
If the vehicle ahead has moved on.  
The engine will also be restarted if the Adaptive Cruise Control(ACC) is deactivated and the vehicle ahead moves  
further away.  
WARNING  
Never switch off the ignition while the vehicle is in motion. This can lead to a loss of vehicle control, accidents and  
serious injuries.  
The airbags and belt tensioners do not function.  
The brake servo does not work. More force is required on the brake pedal to stop the vehicle.  
The power steering does not work. More manual power will be needed to steer the vehicle.  
When the ignition is switched off, the steering lock may activate and you will no longer be able to steer the  
vehicle.  
Deactivate the start/stop system when working in the engine compartment.  
NOTICE  
If the start/stop system is used in very high outside temperatures over a long period, the 12-volt vehicle battery can  
be damaged.  
In some cases, it may be necessary to restart the engine manually. Follow any corresponding messages on the  
instrument cluster display.  
Always deactivate the start/stop system manually when driving through  
water.  
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Troubleshooting  
Engine no longer starts automatically  
The warning lamp lights up red.  
There is a fault in the start/stop system.  
1. Start the motor manually (→ Starting the engine).  
2. Go to a correspondingly qualified workshop immediately.  
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Function of the DSG® dual clutch gearbox  
Description  
®
The vehicle is equipped with a DSG dual clutch gearbox.  
The DSG® dual clutch gearbox is a gearbox which uses dual clutch technology to change gear automatically. It uses a  
dual clutch and two independent gearboxes to enable very fast gear changes with no loss of torque. The DSG® dual  
clutch gearbox thus combines the performance and economy of a manual gearbox with the comfort and convenience  
of a conventional automatic transmission.  
How the system works  
When driving, engine power is transferred to the drive axle via the gearbox. In order to change gears, the power  
transmission between the engine and the gearbox has to be interrupted. This is what the clutch is for.  
With the DSG® dual clutch system with its two complementary gearboxes, one gearbox is always connected under  
load to the engine. Before a gear shift, another gear is always preselected in the load-free second gear train half. The  
clutch on the non-driven gear is closed and the other is opened at the same time. This is what makes very fast gear  
changes possible.  
Thanks to its design, the DSG® dual clutch gearbox is more efficient than an automatic gearbox. Whereas in an  
automatic gearbox the torque converter is constantly in use, in the DSG® dual clutch system the clutch can be opened  
at idling speed, thus saving fuel. With its efficiency, low weight and intelligent control system, the DSG® dual clutch  
gearbox usually enables fuel consumption that is equal to or lower than a manual gearbox.  
®
However, just like the manual gearbox, the clutch in the DSG dual clutch gearbox is subject to wear. Regular  
maintenance is necessary depending on the type of DSG® dual clutch gearbox; further information (→ Scope of  
®
service). In the event of a fault in one gear train half, the DSG dual clutch gearbox also allows one gear train half to  
be deactivated and the journey to be continued using the other gear train half (→ Automatic gearbox). If this  
happens, have the system checked as soon as possible by a suitably qualified workshop.  
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