74
1.6 Check the level of AdBlue and the daily maintenance of SCR system
SCR=Selective Catalytic Reduction. Use of chemistry to reduce vehicle emissions. Urea dosing system is a
reductant dilivery system that accurately injects a 32.5% solution of urea in water, also known as Diesel
Exhaust Fluid(DEF) into the exhaust. Utilizing heat from the exhaust the urea and then decomposes into
ammonia. The ammonia reacts with the SCR catalyst, converting Nitrous Oxides (Nox) in the exhaust into
harmless nitrogen an water.
DEF check, operation and maintenance
(1) Check the level of AdBlue.
When the vehicle key rotate the ON position, the LED
screen of combination instrument will display the remain
volume of the AdBlue, please see the right diagram.
The AdBlue consumption is 5 percent of the fuel
consumption. If the remain volume of AdBlue is less than
12%, the lamp 1 will flash and you need add AdBlue. If
the remain volume of AdBlue is less than 6%, this lamp
will light and the power of engine will be declined
forcibly. This will cause the emission substandard and it
is not good to engine.
(2) The daily maintenance of SCR system
Please add the AdBlue when it is insufficiency. Ensure
the AdBlue meet the requirement. Check the SCR system
is well enough and has no leaking before driving. There is
obvious add mark in AdBlue tank. If add substandard
AdBlue, must stop the vehicle right now and clean the
AdBlue tank, re-filling the qualified AdBlue. The air filter
should be clean and replace regularly.
Special attention:
If the AdBlue spill in skin, mild irritation may occur.
Wash off with soap and water. If the AdBlue spill in eye,
irrigate eyes with large amount of water. The AdBlue is
Non-combustible, if heated water evaporates and
ammonia will be released.
