Overheating is indicated by the warning lamp and in some cases by additional warning lamps and a text message in
the instrument cluster display.
—Driving can be continued.
Clutch fault
The indicator lamp lights up yellow.
The clutch is faulty.
—Drive on carefully!
—Seek expert assistance. Failure to do so could result in considerable damage to the clutch.
Function of the DSG® dual clutch gearbox
Description
®
The vehicle is equipped with a DSG dual clutch gearbox.
The DSG® dual clutch gearbox is agearbox 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 qualified workshop.
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