►Audi A6  ►Service and care  ►Checking and topping up fluids  ◀Selective catalytic reduction
Closing the filler neck
Screw the cap onto the filler neck by turning the box spanner clockwise until you hear the cap click tight WARNING!, Caution!.
Press the left side of the flap to close it (you should hear it click into place).
After refilling
The vehicle must be driven. It can take up to two minutes for the system to detect that the AdBlue has been refilled.
If the AdBlue tank had run dry and a range of 0 km was shown on the display, switch on the ignition for approx. 30 seconds before starting the engine.

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