Table of Contents
Advertisement
Immediately rinse surfaces that come in
#
contact with DEF when filling with water
or remove DEF with a damp cloth and
cold water.
If DEF has already crystallized, clean using a
sponge and cold water.
If you open the DEF tank, small amounts of
ammonia vapor may be released. Do not inhale
any ammonia vapor that may be released. Fill the
DEF tank only in well-ventilated areas.
DEF consumption and filling capacity
DEF consumption
Like fuel consumption, DEF consumption is highly
dependent upon driving style and operating con‐
ditions. DEF consumption is usually within a
range of 0 and 10% of the fuel consumption. If
necessary, DEF must be refilled in accordance
with the instructions when the refill message is
displayed in the instrument cluster. This may also
be necessary between the scheduled mainte‐
nance.
Total capacity of DEF tank
Vehicle
All models
Exhaust gas aftertreatment
The exhaust gas aftertreatment system must be
operated in conjunction with DEF if it is to func‐
tion correctly.
If you operate the vehicle without DEF or with
emissions-relevant malfunctions, the legal MOT
approval is invalidated. You will then probably no
longer be permitted to operate the vehicle on
public roads.
It may be improper or punishable in some coun‐
tries to operate a vehicle that uses no DEF or one
that does not comply with the specifications of
these operating instructions.
Engine management monitors the exhaust gas
aftertreatment components for compliance with
emissions laws and regulations. If you attempt to
operate the vehicle without DEF, with diluted DEF
or with a different reducing agent, this will be
detected by the engine management system.
Other emissions-relevant malfunctions, e.g.
metering malfunctions or sensor errors, are also
detected and logged.
Total capacity
5.8 gal (22 liters )
The engine management system subsequently
prevents the engine being restarted after issuing
a warning message.
Therefore add DEF tank regularly during vehicle
operation or, at the latest, after receiving the first
warning message via the instrument cluster.
Engine oil
Notes on engine oil
Observe the notes on operating fluids
(
page 325).
/
* NOTE Engine damage caused by an
incorrect oil filter, incorrect oil or addi‐
tives
Do not use engine oils or oil filters other
#
than those which meet the specifica‐
tions necessary for the prescribed
service intervals.
Do not alter the engine oil or oil filter in
#
order to achieve longer change intervals
than prescribed.
Do not use additives.
#
Have the engine oil changed after the
#
prescribed intervals.
Mercedes-Benz recommends having the oil
changed at a qualified specialist workshop.
Further information on engine oil and oil filter:
in the MB Specifications for operating fluidsat
R
http://bevo.mercedes-benz.com (by entering
the designation)
at a qualified specialist workshop
R
Technical data 329
Advertisement
Table of Contents
