maintenance MERCEDES-BENZ CLA 2019 Owners Manual

Welcome to the world of Mercedes-Benz
We urge you to read this Operator's Manualcarefully and familiarize yourself with the vehi-cle before driving. For your own safety and alonger vehicle life, follow the instructions andwarning notices in this Operator's Manual.Ignoring them could result in damage to thevehicle or personal injury to you or others.
Vehicle damage caused by failure to followinstructions is not covered by the Mercedes-Benz Limited Warranty.
The equipment or product designation of yourvehicle may vary depending on:
RModel
ROrder
RCountry specification
RAvailability
Mercedes-Benz therefore reserves the right tointroduce changes in the following areas:
RDesign
REquipment
RTechnical features
The equipment in your vehicle may thereforediffer from that shown in the descriptions andillustrations.
The following are integral components of thevehicle:
RPrinted Operator's Manual
RMaintenance Booklet
REquipment-dependent supplements
Keep these documents in the vehicle at alltimes. If you sell the vehicle, always pass alldocuments on to the new owner.
You can also use the Mercedes-Benz GuidesApp:
Your Operator's Manual:
Digital form inside the vehicle
The Digital Operator's Manual providescomprehensive and specifically adaptedinformation on your vehicle's equipmentand multimedia system. It contains infor-mative animations, individual languagesettings and an intuitive search function.
Booklet inside the vehicle
In addition to this manual and the afore-mentioned digital media, you also have theoption to obtain a comprehensive printedversion of the Supplement for your multi-
media system from your authorizedMercedes-Benz Center.
Digital form via the Internet
The Operator's Manual on the Internet pro-vides easy access to all informationregarding your vehicle and multimedia sys-tem. It also provides helpful animations,interesting background information and awide array of search options.
Digital form as an App
Using the Mercedes-Benz Guides App, youcan view all the information on your vehicleand multimedia system via mobile Internetor download it independently of networkaccess. Available for smartphones or tab-lets.
You can also use the Mercedes-Benz GuidesApp:
Please note that the Mercedes-Benz Guides Appmay not yet be available in your country.
Mercedes-Benz USA, LLC
Mercedes-Benz Canada, Inc.
A Daimler Company
1175842505É1175842505_ËÍ

Features .............................................. 244
Maintenance and care......................260
Engine compartment ........................... 260
ASSYST PLUS ...................................... 264
Care ..................................................... 265
Breakdown assistance.....................273
Where will I find...? .............................. 273
Flat tire ................................................ 274
Battery (vehicle) .................................. 279
Jump-starting ....................................... 282
Towing and tow-starting ...................... 284
Fuses ................................................... 287
Wheels and tires...............................290
Important safety notes ........................ 290
Operation ............................................ 290
Winter operation .................................. 292
Tire pressure ....................................... 293
Loading the vehicle .............................. 301
All about wheels and tires ................... 304
Changing a wheel ................................ 310
Wheel and tire combinations ............... 315
Emergency spare wheel ....................... 315
Technical data...................................317
Information regarding technical data ... 317
Vehicle electronics .............................. 317
Identification plates ............................. 318
Service products and filling capaci-
ties ...................................................... 319
Vehicle data ......................................... 325
Contents3

Automatic transmission emer-
gency mode.......................................139
B
Back button....................................... 232
Backup lamp
Display message ............................ 205
BAS (Brake Assist System)................. 61
Battery (SmartKey)
Checking .......................................... 73
Important safety notes .................... 73
Replacing ......................................... 73
Battery (vehicle)
Charging ........................................ 281
Display message ............................ 208
Important safety notes .................. 279
Jump starting ................................. 282
Replacing ....................................... 281
Belt
see Seat belts
Belt warning......................................... 44
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 188
Display message ............................ 210
Notes/function .............................. 174
Bluetooth®
Searching for a mobile phone ........235
Searching for a mobile phone
(device manager) ........................... 236
see also Digital Operator's Man-
ual ..................................................231
Telephony ...................................... 235
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 199
Notes ............................................. 322
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamp
Replacing bulbs .............................107
Brake lamps
Display message ............................ 204
Brakes
ABS ..................................................61
BAS .................................................. 61
Brake fluid (notes) ......................... 322
Braking assistance appropriate to
the situation ..................................... 63
Display message............................ 194
EBD .................................................. 67
Hill start assist ............................... 126
HOLD function ............................... 158
Important safety notes .................. 147
Maintenance .................................. 148
Parking brake ................................ 143
Riding tips ...................................... 147
Warning lamp ................................. 221
Braking assistance appropriate to
the situation
Function/notes................................ 63
Breakdown assistance
Where will I find...? ........................ 273
see Flat tire
see Tow-starting
see Towing away
Brightness control (instrument
cluster lighting)................................... 33
Buttons on the steering wheel......... 179
C
California
Important notice for retail cus-
tomers and lessees .......................... 25
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Car wash ........................................ 265
Carpets .......................................... 272
Display ........................................... 270
Exhaust pipe .................................. 270
Exterior lights ................................ 269
Gear or selector lever .................... 271
Interior ........................................... 270
Matte finish ................................... 267
Notes ............................................. 265
Paint .............................................. 267
Plastic trim .................................... 270
Power washer................................ 266
Rear view camera .......................... 269
6Index

U
Unlocking
Emergency unlocking .......................77
From inside the vehicle (central
unlocking button) ............................. 76
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles)....... 190
USB devices
Connecting to the Media Inter-
face ............................................... 238
V
Vanity mirror (in the sun visor)........ 246
Vehicle
Correct use ...................................... 28
Data acquisition ............................... 29
Display message............................ 215
Equipment ....................................... 25
Individual settings .......................... 188
Limited Warranty ............................. 29
Loading .......................................... 301
Locking (in an emergency) ............... 77
Locking (SmartKey).......................... 70
Lowering ........................................ 314
Maintenance .................................... 26
Parking for a long period ................ 145
Pulling away ................................... 126
Raising ........................................... 312
Reporting problems ......................... 28
Securing from rolling away ............ 312
Transporting .................................. 287
Unlocking (in an emergency) ........... 77
Unlocking (SmartKey)...................... 70
Vehicle data ................................... 325
Vehicle data
Roof load (maximum) ..................... 325
Vehicle dimensions........................... 325
Vehicle emergency locking................ 77
Vehicle identification number
see VIN
Vehicle identification plate.............. 318
Vehicle tool kit.................................. 274
Ventilation
Setting the vents ........................... 121
Video
Operating the DVD ......................... 185
see also Digital Operator's Man-
ual .................................................. 231
VIN
Seat ............................................... 319
Type plate ...................................... 318
W
Warning and indicator lamps
ABS ................................................ 222
Active Brake Assist ........................ 229
Brakes ........................................... 221
Check Engine ................................. 226
Coolant .......................................... 227
Distance warning ........................... 229
ESP®.............................................. 223
ESP®OFF ....................................... 224
Fuel tank ........................................ 226
Overview .......................................... 33
PASSENGER AIR BAG ...................... 41
Reserve fuel ................................... 226
Restraint system ............................ 226
Seat belt ........................................ 220
SPORT handling mode ................... 224
Tire pressure monitor .................... 230
Warranty.............................................. 25
Washer fluid
Display message ............................ 218
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 231
Wheel and tire combinations
Tires ............................................... 315
Wheel bolt tightening torque........... 314
Wheel chock...................................... 312
Wheels
Changing a wheel.......................... 310
Checking ........................................ 290
Cleaning ......................................... 268
Emergency spare wheel ................. 315
Important safety notes .................. 290
Information on driving .................... 290
Interchanging/changing ................ 310
Mounting a new wheel ................... 313
Removing a wheel.......................... 313
Storing ........................................... 311
Tightening torque ........................... 314
Wheel size/tire size ....................... 315
Index21

systems, e.g. the brake system. Use only genu-ine Mercedes-Benz parts or parts of equal qual-ity. Only use tires, wheels and accessories thathave been specifically approved for your vehi-cle.
Genuine Mercedes-Benz parts are subject tostrict quality control. Every part has been spe-cifically developed, manufactured or selectedfor and adapted to Mercedes-Benz vehicles.Therefore, only genuine Mercedes-Benz partsshould be used.
More than 300,000 different genuineMercedes-Benz parts are available forMercedes-Benz models.
All authorized Mercedes-Benz Centers maintaina supply of genuine Mercedes-Benz parts fornecessary service and repair work. In addition,strategically located parts delivery centers pro-vide quick and reliable parts service.
Always specify the vehicle identification number(VIN) when ordering genuine Mercedes-Benzparts (Ypage 318).
Operator's Manual
Vehicle equipment
iThis Operator's Manual describes all modelsand all standard and optional equipment ofyour vehicle available at the time of this Oper-ator's Manual going to print. Country-specificdifferences are possible. Bear in mind thatyour vehicle may not feature all functionsdescribed here. This also applies to safety-relevant systems and functions. The equip-ment in your vehicle may therefore differ fromthat shown in the descriptions and illustra-tions.
The original purchase agreement lists all sys-tems installed in your vehicle.
Should you have any questions concerningequipment and operation, please consult anauthorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Book-let are important documents and should be keptin the vehicle.
Service and vehicle operation
Warranty
The Limited Warranty for your vehicle applies inaccordance with the warranty terms and condi-tions in the Service and Warranty Informationbooklet.
Your authorized Mercedes-Benz Center willreplace and repair all factory-installed parts inaccordance with the following warranty termsand conditions:
RNew Vehicle Limited Warranty
REmission System Warranty
REmission Performance Warranty
RCalifornia, Connecticut, Maine, Massachu-setts, New York, Pennsylvania, Rhode Islandand Vermont Emission Control System War-ranty
RState warranty enforcement laws (lemonlaws)
Replacement parts and accessories are coveredby the Mercedes-Benz Parts and Accessorieswarranties. These are available at any author-ized Mercedes-Benz Center.
iShould you lose your Service and WarrantyInformation booklet, have an authorizedMercedes-Benz Center arrange for a replace-ment. The new Service and Warranty Infor-mation booklet will be posted to you.
Information for customers in Califor-
nia
Under California law you may be entitled to areplacement of your vehicle or a refund of thepurchase price or lease price, if after a reason-able number of repair attempts Mercedes-BenzUSA, LLC and/or its authorized repair or servicefacilities fail to fix one or more substantialdefects or malfunctions in the vehicle that arecovered by its express warranty.
During the period of 18 months from originaldelivery of the vehicle or the accumulation of18,000 miles (approximately 29,000 km) on theodometer of the vehicle, whichever occurs first,a reasonable number of repair attempts is pre-sumed for a retail buyer or lessee if one or moreof the following occurs:
(1) the same substantial defect or malfunctionresults in a condition that is likely to cause
Service and vehicle operation25
Introduction
Z

death or serious bodily injury if the vehicle isdriven, that defect or malfunction has beensubject to repair two or more times, and youhave directly notified Mercedes-Benz USA,LLC in writing of the need for its repair.
(2) the same substantial defect or malfunctionof a less serious nature than category (1)has been subject to repair four or moretimes and you have directly notifiedMercedes-Benz in writing of the need for itsrepair.
(3) the vehicle is out of service by reason ofrepair of the same or different substantialdefects or malfunctions for a cumulativetotal of more than 30 calendar days.
Please send your written notice to:
Customer Assistance Center
Mercedes-Benz USA, LLC
3 Mercedes Drive
Montvale, NJ 07645-0350
Maintenance
Always bring the Maintenance Booklet with youwhen taking the vehicle to an authorizedMercedes-Benz Center. Your customer serviceadvisor will enter every service into your Main-tenance Booklet on your behalf.
Roadside Assistance
The Mercedes-Benz Roadside Assistance Pro-gram offers technical help in the event of abreakdown. Calls to the toll-free Roadside Assis-tance Hotline are answered by our agents 24hours a day, 365 days a year.
1-800-FOR-MERCedes (1-800-367-6372)(USA)
1-800-387-0100 (Canada)
For additional information, refer to theMercedes-Benz Roadside Assistance Programbrochure (USA) or the "Roadside Assistance"section in the Service and Warranty Booklet(Canada). You will find both in the vehicle docu-ment wallet.
Change of address or change of own-
ership
In the event of a change of address, please sendus the "Notification of Address Change" in theService and Warranty Booklet or simply call theMercedes-Benz Customer Assistance Center(USA) at the hotline number1-800-FOR-MERCedes (1-800-367-6372) orCustomer Service Center (Canada) at1-800-387-0100. This will assist us in contact-ing you in a timely manner should the need arise.
If you sell your Mercedes, please leave all liter-ature in the vehicle so that it is available to thenext owner.
If you have purchased a used car, please send usthe "Notification of Used Car Purchase" in theService and Warranty Booklet or simply call theMercedes-Benz Customer Assistance Center(USA) at the hotline number1-800-FOR-MERCedes (1-800-367-6372) orCustomer Service (Canada) at 1-800-387-0100.
Vehicle operation outside the USA
and Canada
When you are abroad with your vehicle, observethe following points:
RService facilities or replacement parts maynot be readily available.
RLead-free fuel for vehicles with a catalyticconverter may not be available. Leaded fuelcan cause damage to the catalytic converter.
RThe fuel may have a considerably loweroctane number. Unsuitable fuel can causeengine damage.
Some Mercedes-Benz models are available fordelivery in Europe through our European Deliv-ery Program. For details, consult an authorizedMercedes-Benz Center or write to one of thefollowing addresses.
In the USA
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
26Service and vehicle operation
Introduction

Operating safety
Important safety notes
GWARNING
If you do not have the prescribed service/
maintenance work or any required repairs
carried out, this can result in malfunctions or
system failures. There is a risk of an accident.
Always have the prescribed service/mainte-
nance work as well as any required repairs
carried out at a qualified specialist workshop.
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is a risk
of fire.
When driving on an unpaved road or off-road,
check the vehicle underside regularly. In par-
ticular, remove trapped plant parts or other
flammable material. Contact a qualified spe-
cialist workshop immediately if damage is
detected.
GWARNING
Modifications to electronic components, their
software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
!There is a risk of damage to the vehicle if:
Rthe vehicle becomes stuck, e.g. on a highcurb or an unpaved road
Ryou drive too fast over an obstacle, e.g. acurb, a speed bump or a pothole in the road
Ra heavy object strikes the underbody orparts of the chassis
In situations like this, the body, the under-body, chassis parts, wheels or tires could bedamaged without the damage being visible.Components damaged in this way can unex-pectedly fail or, in the case of an accident, nolonger withstand the loads they are designedto.
If the underbody paneling is damaged, com-bustible materials such as leaves, grass ortwigs can gather between the underbody andthe underbody paneling. If these materialscome in contact with hot parts of the exhaustsystem, they can catch fire.
In such situations, have the vehicle checkedand repaired immediately at a qualified spe-cialist workshop. If on continuing your jour-ney you notice that driving safety is impaired,pull over and stop the vehicle immediately,paying attention to road and traffic condi-tions. In such cases, consult a qualified spe-cialist workshop.
Declarations of conformity
USA:"The wireless devices of this vehicle com-ply with Part 15 of the FCC Rules. Operation issubject to the two following two conditions: 1)These devices may not cause harmful interfer-ence, and 2) These devices must accept anyinterference received, including interferencethat may cause undesired operation. Changesor modifications not expressly approved by theparty responsible for compliance could void theuser’s authority to operate the equipment."
Canada:"The wireless devices of this vehiclecomply with Industry Canada license-exemptRSS standard(s). Operation is subject to the fol-lowing two conditions: (1) These devices maynot cause interference, and (2) These devicesmust accept any interference, including inter-ference that may cause undesired operation ofthe device."
Operating safety27
Introduction
Z

Diagnostic connector
The diagnostics connection is only intended forthe connection of diagnostic equipment at aqualified specialist workshop.
GWARNING
If you connect equipment to a diagnostics
connection in the vehicle, it may affect the
operation of vehicle systems. As a result, the
operating safety of the vehicle could be affec-
ted. There is a risk of an accident.
Only connect equipment to a diagnostics con-
nection in the vehicle, which is approved for
your vehicle by Mercedes-Benz.
GWARNING
Objects in the driver's footwell can restrict the
pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
!If the engine is switched off and equipmenton the diagnostics connection is used, thestarter battery may discharge.
Connecting equipment to the diagnostics con-nection can lead to emissions monitoring infor-mation being reset, for example. This may leadto the vehicle failing to meet the requirements ofthe next emissions test during the main inspec-tion.
Qualified specialist workshop
An authorized Mercedes-Benz Center is a quali-fied specialist workshop. It has the necessaryspecialist knowledge, tools and qualifications tocorrectly carry out the work required on yourvehicle. This is especially the case for work rel-evant to safety.
Observe the notes in the Maintenance Booklet.
Always have the following work carried out at anauthorized Mercedes-Benz Center:
Rwork relevant to safety
Rservice and maintenance work
Rrepair work
Ralterations, installation work and modifica-tions
Rwork on electronic components
Correct use
If you remove any warning stickers, you or oth-ers could fail to recognize certain dangers.Leave warning stickers in position.
Observe the following information when drivingyour vehicle:
Rthe safety notes in this manual
Rtechnical data for the vehicle
Rtraffic rules and regulations
Rlaws and safety standards pertaining to motorvehicles
Problems with your vehicle
If you should experience a problem with yourvehicle, particularly one that you believe mayaffect its safe operation, we urge you to contactan authorized Mercedes-Benz Center immedi-ately to have the problem diagnosed and recti-fied. If the problem is not resolved to your sat-isfaction, please discuss the problem again withan authorized Mercedes-Benz Center or, if nec-essary, contact us at one of the followingaddresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
3 Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting safety defects
USA only:
28Operating safety
Int roduction

Overview of climate control systems
General notes
Observe the settings recommended on the fol-lowing pages. The windows could otherwise fogup.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-tion function
Rswitch on the defrost windshield functionbriefly, if required
The air-conditioning system or dual-zone auto-matic climate control regulates the temperatureand the humidity of the vehicle interior and fil-ters undesirable substances from the air.
The air-conditioning system or dual-zone auto-matic climate control can only be operatedwhen the engine is running. Optimum operationis only achieved with the side windows and pan-orama roof with power tilt/sliding panel closed.
If you start the engine using your smartphone,the last selected climate control setting is reac-tivated (Ypage 83).
The residual heat function can only be activatedor deactivated with the ignition switched off(Ypage 120).
Always keep the ventilation flaps behind theside trim panel in the cargo compartment clear(Ypage 107). Otherwise the vehicle will not beventilated correctly.
iVentilate the vehicle for a brief period duringwarm weather, e.g. using the convenienceopening feature (Ypage 83). This will speedup the cooling process and the desired inte-rior temperature will be reached morequickly.
iThe integrated filter filters out most parti-cles of dust and soot and completely filtersout pollen. It also reduces gaseous pollutantsand odors. A clogged filter reduces theamount of air supplied to the vehicle interior.For this reason, you should always observethe interval for replacing the filter, which isspecified in the Maintenance Booklet. As itdepends on environmental conditions, e.g.heavy air pollution, the interval may beshorter than stated in the Maintenance Book-let.
iIt is possible that under certain circumstan-ces the residual heat function may be activa-ted automatically an hour after the SmartKeyhas been removed in order to dry the auto-matic climate control. The vehicle is then ven-tilated for 30 minutes.
Overview of climate control systems111
Climate control

GWARNING
Limbs could be crushed or trapped if the
engine is started unintentionally during ser-
vice or maintenance work. There is a risk of
injury.
Always secure the engine against uninten-
tional starting before carrying out mainte-
nance or repair work.
Make sure that the engine cannot be started viayour smartphone before carrying out mainte-nance or repairs. You can prevent an enginestart via your smartphone, for example, if you:
Rswitch on the hazard warning lamps
Rdo not lock the doors
Ropen the hood
Pulling away
General notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission position:
orF, the vehicle could pull away suddenly.
There is a risk of an accident.
When engaging transmission position:or
F, always firmly depress the brake pedal
and do not simultaneously accelerate.
Depress the accelerator carefully when pullingaway.
The vehicle locks centrally once you have pulledaway. The locking knobs in the doors drop down.
You can open the doors from the inside at anytime.
You can also deactivate the automatic lockingfeature (Ypage 189).
Vehicles with automatic transmission:it ispossible to shift the transmission from position]to the desired position only if you depressthe brake pedal. Only then can the parking lockbe deactivated.
All vehicles (except Mercedes-AMG vehi-cles):if you do not depress the brake pedal, theDIRECT SELECT lever can still be moved but theparking lock remains engaged.
Mercedes-AMG vehicles:if you do not depressthe brake pedal, the selector lever can still bemoved but the parking lock remains engaged.
At transmission fluid temperatures below