display MERCEDES-BENZ GLS 2018 Owners Manual

DEF
Important safet y notesComply wit h th e important safet y note s fo r ser -
vic e products when handlin g DE F ( Y
page 386).
DE F is a water-soluble flui d fo r th e exhaus t gas
aftertreatmen t of diesel engines. It is:R
no t poisonousR
colorles s and odorlessR
no t flammable
Whe n you ope n th e DE F container, small
amount s of ammonia vapor may be released.
Ammoni a vapor s hav e a pungen t odo r and are
particularly irritatin g to th e skin , to mucous
membrane s and to th e eyes . You may experi-
ence a burning sensation in your eyes , nose and
throat . Coughin g and watering of th e eyes are
possible.
Do no t inhale ammonia vapors. Fil l th e DE F tank
only in well-ventilated areas.
Low outsid e temperaturesDE F freezes at a temperature of approximately
12 ‡ (-11 †). The vehicle is delivered from th e
factory equipped wit h a DE F preheatin g system.
Winte r operation can thus be guaranteed eve n
at temperature s belo w 12 ‡ (-11 †).
Additives
! Only use DE F in accordance wit h IS O
22241. Do no t use additive s wit h DE F and do
no t dilut e DE F wit h water. Thi s may destroy
th e BlueTE C exhaus t gas aftertreatmen t sys -
tem.
Purity
! Impurities in DE F (e.g. due to other servic e
products , cleanin g agents or dust ) lead to :R
increase d emission valuesR
damage to th e catalytic converterR
engin e damageR
malfunction s in th e BlueTE C exhaus t gas
aftertreatmen t syste m
Assurin g th e purit y of DE F is particularly impor -
tant wit h respec t to avoidin g malfunction s in th e
BlueTE C exhaus t gas aftertreatmen t system.
If DE F is pumped out of th e DE F tank , e.g. durin g
repair work, it mus t no t be returned to th e tank . The purit y of th e flui d can no longer be guaran-
teed.
Filling capacities Model Tota l capacity
GLS 350 d 4MATIC
10.2 US gal
(38.7 l)
Engin e oil
General notes
! Do no t use engin e oil or an oil filte r wit h
specification s deviatin g from those expressl y
require d fo r th e prescribed servic e intervals.
Do no t chang e th e engin e oil or oil filte r in
order to set replacement intervals longer than
those prescribed. Thi s could otherwise cause
damage to th e engin e or exhaus t gas after-
treatment.
Follow th e instruction s on th e servic e interval
display fo r changin g th e engin e oil. Thi s could
otherwise cause damage to th e engin e or
exhaus t gas aftertreatment.
Whe n handlin g engin e oil, observ e th e important
safet y note s on servic e products ( Y
page 386).
The engin e oils are matched to th e performanc e
of Mercedes-Ben z engines and servic e intervals.
You should therefore only use engin e oils and oil
filters that are approved fo r vehicles wit h main -
tenance systems .
Fo r a list of approved engin e oils and oil filters ,
consult an authorized Mercedes-Ben z Center.
Alternatively, visit th e websit e
http://bevo.mercedes-benz.com .
The table shows whic h engin e oils hav e bee n
approved fo r your vehicle.Service products and filling capacities 389
Technical data Z