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210
STARTING AND OPERATING
Diesel Exhaust Fluid (DEF) Fill Procedure
NOTE:
For the correct fluid type Ú page 473.
1. Remove cap from Diesel Exhaust Fluid (DEF)
tank which is located next to the diesel fuel
filler.
DEF Filler Cap And Fuel Fill
1 — Diesel Exhaust Fluid (DEF) Fill Location
2 — Diesel Fuel Fill Location
2. Insert DEF fill adapter/nozzle into DEF tank
filler neck.
NOTE:
The DEF gauge may take up to five seconds
to update after adding a gallon or more of
(DEF) to the DEF tank. If you have a fault
related to the DEF system, the gauge may
not update to the new level. See an autho-
rized dealer for service.
The DEF gauge may also not immediately
update after a refill if the temperature of the
DEF fluid is below 12°F (-11°C). The DEF
line heater will possibly warm up the DEF
fluid and allow the gauge to update after a
period of run time. Under very cold condi-
tions, it is possible that the gauge may not
reflect the new fill level for several drives.
Refilling With Nozzles
You can fill up at any DEF distributor.
Proceed as follows:
Insert the DEF nozzle in the filler, start
refilling and stop refilling at the first shut-off
(the shut-off indicates that the DEF tank is
full). Do not proceed with the refilling, to
prevent spillage of DEF.
Extract the nozzle.
Refilling With Containers
Proceed as follows:
Check the expiration date.
Read the advice for use on the label before
pouring the content of the bottle into the
DEF tank.
If systems which cannot be screwed in
(e.g. tanks) are used for refilling, after the
indication appears on the instrument panel
display Ú page 114 fill the DEF tank with no
more than 2 gallons (8 liters).
If containers which can be screwed to the
filler are used, the reservoir is full when the
DEF level in the container stops pouring out.
Do not proceed further.
CAUTION!
To avoid DEF spillage, and possible damage to
the DEF tank from overfilling, do not "top off"
the DEF tank after filling.
DO NOT OVERFILL. DEF will freeze below 12ºF
(-11ºC). The DEF system is designed to work in
temperatures below the DEF freezing point,
however, if the tank is overfilled and freezes,
the system could be damaged.
(Continued)
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