Risk of burn injuries and scalding when working at AdBlue lines and the components attached to them. Risk of injury to skin and eyes when handling AdBlue. Risk of poisoning caused by swallowing AdBlue - AS14.40-Z-0001-01A

Pour AdBlue into suitable containers only. Wait until the pressure is released before starting any work on the exhaust aftertreatment system. 

Potential risks 

Risk of burn injuries and scalding 

The AdBlue lines and all components attached to them are under pressure during operation and remain so after the engine is switched off and may also be hot. There is a risk of burn injuries. There is a risk of scalding caused by escaping hot AdBlue when the lines are opened.

Risk of injury 

In the event of contact with AdBlue, there is a risk of skin irritations and eye injuries.

Risk of poisoning 

There is a risk of poisoning if AdBlue is swallowed.

Rules of conduct 

• On vehicles with electrical delivery pumps, the AdBlue is pumped from the line back into the AdBlue tank after the engine is switched off.

  On vehicles with a compressed air system, individual lines are flushed with compressed air after the engine is switched off. The engine must therefore be switched off for at least 5 minutes before work on the exhaust aftertreatment system may begin.

• Open line connections and closures on system components gradually. Cover the connecting point with rags when opening.
• Only pour AdBlue into suitable and marked containers. Do not fill AdBlue into drinking containers.
• Wipe up any AdBlue that has escaped immediately due to the fact that it is extremely slippery.

Safety precautions when handling removed parts and under the vehicle 

• Wear suitable protective gloves
• Wear protective clothing
• Wear safety glasses

First aid measures 

Skin contact In the event of skin contact, wash affected skin areas thoroughly with plenty of clean water. Change contaminated clothing as quickly as possible.

Eye contact: In the event of eye contact, immediately rinse eyes thoroughly with plenty of clear water; contact an eye doctor, if necessary.

Ingestion: Rinse out mouth and drink large quantities of water. Immediately seek medical assistance.

Fire fighting measures 

AdBlue is not combustible. In the event of a fire, NH ₃ (ammonia) may be released, which can result in a risk of poisoning. Firefighting measures must therefore be suited to the surroundings.