Safety Precautions When Working On SCR System: Notes

WARNING: This page is about a different car, the 2016 Audi A3 and 2015 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Note the following when working on the SCR system:

The reducing agent increases the risk of injury

Reducing agents may cause eye and skin irritation as well as injury to the respiratory system and possible poisoning.

-- Wear protective eyewear.

-- Wear safety gloves.

-- Wear protective work clothing.

-- Make sure there is a fresh air supply. Turn on exhaust extraction when in closed spaces.

CAUTION:

The reducing agent increase the risk of damage

If any reducing agent contacts the trim or body components, the reducing agent can crystallize after a period of time and damage the surface.

-- Make sure the reducing agent does not contact any trim or vehicle body components.

-- If any contact occurs on surfaces, remove the reducing agent immediately using water and a towel.

Note the following when removing or installing any components of the SCR system:

The reducing agent tank must be empty when working on the selective catalytic reduction system. When the reducing tank needs to be emptied, read the respective procedure description.