Calling up the DEF level gauge
On-board computer:
4
Service
#
Select
DEF
and confirm.
The DEF level and the DEF range appear.
Instrument Display with color display
1
DEF level
Instrument Display with black and white dis‐
play
1
DEF level
Refilling DEF
*
NOTE Engine damage due to DEF being
in the fuel
#
DEF must not be used to fill the fuel
tank.
#
Only use DEF to fill the DEF tank.
#
Do not overfill the DEF tank.
*
NOTE Contamination of the vehicle inte‐
rior due to DEF leakage
#
After adding, carefully close the DEF
refill container.
#
Avoid carrying DEF refill containers per‐
manently in the vehicle.
Requirements:
R
The ignition is switched off.
The following messages that appear in succes‐
sion in the multifunction display indicate that you
need to refill the DEF tank:
R
Refill Additive See Operator's Manual
The DEF tank has fallen below the first warn‐
ing threshold.
R
Refill Additive Starts until Emerg. Op.: XXX
See Operator's Manual
The DEF supply has fallen below the reserve
mark.
After the message appears for the first time,
the remaining DEF supply will last for approx‐
imately 1,200 mi (1,900 km) and you can
start the engine a further 16 times. The num‐
ber of remaining engine starts
XX
(16 to 1) is
shown in the message every time the engine
is started.
R
Refill Additive Emergency Op.: XXX mph See
Operator's Manual
You can only drive the vehicle at a maximum
speed of 5 mph (8 km/h).
Refill quantity:
With a prompt in the display
at least 2 l
Without a prompt in the display
at least 8 l
You can also have the DEF level displayed
(
/
page 134).
Opening the DEF filler cap on filler caps that
are not lockable
#
Open the hood.
134 Driving and parking
