Mercedes-Benz R-Class 2009 Owners Manual - Manual (Page 379)

AdBlue ® (diesel engine only)
377
X Turn filler cap 3 counterclockwise and
open it.
Filler cap
3 is tethered with a plastic strap.
4 AdBlue ® refill container
X Pull dust cap off of AdBlue ® refill container
4 .
X Place AdBlue ® refill container 4 on the
filler neck as illustrated and tighten it
moderately (hand-tight) by turning it
clockwise.
! Make sure to tighten the AdBlue ® refill
container only moderately, i.e. hand-tight,
as you could otherwise damage it.
X Push AdBlue ® refill container 4 down.
The AdBlue ® tank is filled. This may take up
to 1 minute.
i When you stop pushing the AdBlue ® refill
container down, the filling process is
stopped and you can remove the refill
container.
X Release AdBlue ® refill container 4 .
X Turn AdBlue ® refill container 4
counterclockwise and remove it.
X Place filler cap 3 ( Y page 376) on filler
neck and turn it clockwise.
1 AdBlue ® filler cap cover
X Place cover 1 as illustrated and turn it
clockwise to its stop.
X Start the engine.
i If the message Check Additive See
Operator’s Manual still appears in the
multifunction display, refill with one more
container of AdBlue
® .
X Place first aid kit 2 back under cargo
compartment floor.
X Lower cargo compartment floor.
X Close the tailgate.
i Have the AdBlue ® level checked and, if
necessary, filled completely afterward at
an authorized Mercedes-Benz Center.
Practical hints
Z