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132 Driving and parking
DEF refill bottles
1
can be obtained at many gas
stations or at a qualified specialist workshop.
Refill bottles without a threaded cap offer no
overfill protection. DEF may leak out as a result
of overfilling. Mercedes-Benz offers special refill
bottles with a threaded cap. These are available
at any authorized Mercedes-Benz Center.
Unscrew the protective cap from DEF refill
#
bottle 1.
Place DEF refill bottle
#
opening
2
and screw it on clockwise until
hand-tight.
Press DEF refill bottle
#
ing 2.
The DEF tank is filled. This could take up to
one minute.
%
When the DEF refill bottle is no longer
pressed down, filling stops. The bottle can be
removed when it has been only partially emp‐
tied.
Release DEF refill bottle 1.
#
1
as shown on filler
1
towards filler open‐
Turn DEF refill bottle
#
and remove it.
Screw the protective cap onto DEF refill bot‐
#
tle
1
again.
Filling procedure with the pump nozzle of an
DEF filling pump
Insert the pump nozzle into the filler neck and
#
add DEF. When doing so, do not overfill the
DEF tank.
Closing the DEF filler cap on filler caps that
are not lockable
After filling the DEF tank, place DEF filler cap
#
1
on the filler neck and tighten it clockwise.
Turn the DEF filler cap until the lettering is
#
legible and horizontal.
The filler neck is only locked correctly when
this is the case.
Close the hood.
#
1
counter-clockwise
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