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- Fig. 1 Audi A6 as seen from the rear right: Unscrewing the AdBlue cap
Applies to Audi A6s: with selective catalytic reduction
The AdBlue filler neck is located immediately beside the diesel filler neck. Refill with at least 5.7 litres of AdBlue. If you do not refill this amount of fluid, the system may not detect that the tank has been refilled and it may not be possible to restart the engine. You can refill with a maximum of 17 litres.
Important: A message in the instrument cluster display informs you if you need to refill AdBlue.
Switch off the ignition.
Open the tank flap ►Link.
Unscrew the cap on the filler neck anti-clockwise using the box spanner from the Audi A6's tool kit Fig. 1.
AdBlue can cause irritation to the skin, eyes, and respiratory organs. Wash thoroughly with clean water should you come into contact with this fluid. Seek medical assistance if needed.
- Use only AdBlue that complies with the ISO 22241-1 standard. Do not mix AdBlue with additives and do not dilute it with water.
- AdBlue must not be added to the diesel tank, and diesel must not be added to the AdBlue tank. Mixing the two can result in damage to the engine and to the AdBlue tank system.
- AdBlue attacks surfaces such as paintwork, plastic veneer and carpets. Remove spilt fluid as soon as possible with a damp cloth and plenty of water. If the AdBlue has already solidified, use warm water and a sponge. Unremoved residues of AdBlue solidify after a while and can damage the affected surface.
- Do not keep refill bottles or canisters in the Audi A6, as AdBlue can leak and damage the Audi A6 interior.
- Keep AdBlue away from clothing. Wash thoroughly with clean water should you come into contact with this fluid.
Note
Please follow the AdBlue manufacturer's instructions for storage and use.