2018 MERCEDES-BENZ CLA octane

death or serious bodily injury if the vehicle is
driven ,t hat defect or malfunction has been
subjec ttor epair two or more times, and you
have directly notified Mercedes-Benz USA,
LLC in writin goft he need for its repair.
(2) the same substantial defect or malfunction
of al ess serious natur et han category (1)
has been subjec ttor epair four or more
times and you have directly notified
Mercedes-Benz in writin goft he need for its
repair.
(3) the vehicle is out of servic ebyr eason of
repair of the same or differen ts ubstantial
defect sorm alfunction sf or ac umulative
total of more than 30 calendar days.
Please send your written notice to:
Customer Assistance Center
Mercedes-Benz USA ,L LC
3M ercedes Drive
Montvale, NJ 07645-0350
Maintenance Always bring the Maintenance Booklet with you
when takin gt he vehicle to an authorized
Mercedes-Benz Center .Y our customer service
advisor will enter every servic ei nt oy our Main-
tenance Booklet on your behalf.
Roadside Assistance The Mercedes-Benz Roadside Assistance Pro-
gram offer st echnical help in the event of a
breakdown .C alls to the toll-free Roadside Assis-
tanc eH otline are answered by our agent s2 4
hours ad ay, 365 days ay ear.
1-800-FOR-MERCedes (1-800-367-6372)
(USA)
1-800-387-0100 (Canada)
For additional information ,r efer to the
Mercedes-Benz Roadside Assistance Program
brochur e( USA )ort he "Roadside Assistance"
section in the Service and Warrant yB ooklet
(Canada). You will find both in the vehicle docu-
ment wallet. Change of address or change of own-
ership In the event of ac hang eofa ddress, please send
us the "Notification of Addres sC hange" in the
Service and Warrant yB ooklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA )att he hotlin en umber
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service Center (Canada) at
1-800-387-0100 .T his will assist us in contact-
ing you in at imely manner should the need arise.
If you sell your Mercedes ,p lease leave all liter-
ature in the vehicle so that it is available to the
nex to wner.
If you have purchased au sed car, please send us
the "Notification of Used Car Purchase" in the
Service and Warrant yB ooklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA )att he hotlin en umber
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service (Canada) at 1-800-387-0100.
Vehicle operation outsid et he USA
and Canada When you are abroad with your vehicle, observe
the following points: R
Service facilities or replacemen tp arts may
not be readily available. R
Lead-free fuel for vehicles with ac atalytic
converter may not be available. Leaded fuel
can cause damage to the catalytic converter. R
The fuel may have ac onsiderably lower
octane number. Unsuitable fuel can cause
engin ed amage.
Some Mercedes-Benz models are available for
delivery in Europe through our European Deliv-
ery Program. For details, consult an authorized
Mercedes-Benz Center or write to one of the
following addresses.
In the USA
Mercedes-Benz USA ,L LC
European Deliver yD epartment
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Deliver yD epartment
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C926
Service and vehicle operation
Introduction

Do not mix such fuel sw it ht he fuel recom-
mended for your vehicle.
! To ensur et he longevity and full perform-
ance of the engine ,o nl yp remium-grade
unleade dg as oline must be used.
If standard unleade dg as oline is unavailable
and yo uh av etor efue lw it hu nleade dg as oline
of al ower grade ,o bs erve the following pre-
cautions: R
Onl yf il lt he fuel tank to half full with regular
unleade dg as oline and fil lt he res tw it hp re-
mium-grad eu nleade dg as oline as soo na s
possible. R
Do not drive at the maximum speed. R
Avoi ds udde na cceleratio na nd engine
speeds ove r3 ,000 rpm.
Yo uw il lu sually find informatio na bout the fuel
grade on the fuel pump. If yo uc anno tf ind the
labe lont he fuel pump, as kt he ga ss tatio ns taff.
i For furthe ri nformation, consul taq uali fied
specialis tw or kshop or visit
http://www.mbusa.com (USA only).
CL A2 50 ,C LA 25 0S port, CL A2 50 4MATIC,
CL A2 50 Sport 4MATIC: as at emporary meas-
ure, if the recommende df ue lisn ot available,
yo um ay also us er egular unleade dg as oline with
an octane rating of 88 AKI /93 RON .
All othe rm odels: as at emporary measure, if
the recommende df ue lisn ot available, yo um a y
also us er egular unleade dg as oline with an
octane rating of 87 AKI/91 RON. Thi sm ay
reduce engine performance and increase fuel
consumption. Avoi dd rivin gatf ul lt hrottle and
sudden acceleration. Never refue lu si ng gaso-
line with al ower AKI.
Informatio nonr efueling ( Y
page 139).
Additives
! Operating the engine with fuel additives
adde dl at er can lead to engine failure. Do not
mix fuel additive sw it hf uel. Thi sd oe sn ot
includ ea ddit ive sf or the remova la nd preven-
tio nofr esidue buildup. gasoline must onl yb e
mixed with additive sr ecommende db y
Mercedes-Benz. Compl yw it ht he instructions
for us eont he product label. Mor ei nformation
abou tr ecommende da ddit ive sc an be
obtained fro ma ny authorize dM er cedes-Benz
Center.
Mercedes-Benz recommends tha ty ou us eb ran-
de df uels tha th av ea ddit ives. The fuel quality availabl eins om ec ountries may
not be sufficient. Residu ec ould buil dupint he
fuel injectio ns ys tem as ar esult. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel ma ybem ixed
with the cleaning additive recommende db y
Mercedes-Benz. Yo um us to bs erve the notes
and mi xing ratio ss p
e cifie dont he container.
Engine oil
General notes
! Do not us ee ngine oi lorano il filter with
specifications deviating fro mt hos ee xpressly
required for the prescribe ds ervic ei ntervals.
Do not change the engine oi loro il filter in
order to set replacement intervals longe rt han
thos ep rescribed. Thi sc ould otherwis ec ause
damage to the engine or exhaust ga sa ft er-
treatment.
Follo wt he instructions on the servic ei nterval
displa yf or changing the engine oil. Thi sc ould
otherwis ec ause damage to the engine or
exhaust ga sa ft ertreatment.
When handling engine oil, observe the important
safety note sons ervic ep roducts ( Y
page 315).
The engine oils ar em at che dtot he performance
of Mercedes-Benz engine sa nd servic ei ntervals.
Yo us houl dt herefore onl yu se engine oils and oil
filters tha ta re approved for vehicles with main-
tenance systems.
For al is tofa pp roved engine oils and oi lf ilters,
consul tana ut horize dM er cedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.co m.
The table shows which engine oils have been
approved for your vehicle.Service products and filling capacities 317
Technical data Z