2019 MERCEDES-BENZ CLA coolant level

Consumption statistics (on-board
computer).......................................... 182
Controller...........................................232
Convenience closing feature.............. 84
Convenience opening feature............ 83
Coolant (engine)
Checking the level ......................... 263
Display message ............................ 207
Filling capacity ............................... 323
Important safety notes .................. 323
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............190
Temperature gauge ........................ 179
Warning lamp ................................. 227
Cooling
see Climate control
Copyright............................................. 31
Cornering light function
Display message ............................ 204
Cruise control
Activation conditions ..................... 151
Cruise control lever ....................... 151
Deactivating ................................... 152
Display message ............................ 212
Driving system ............................... 150
Function/notes .............................150
Important safety notes .................. 151
Setting a speed .............................. 152
Storing and maintaining current
speed ............................................. 151
Cup holder
Center console .............................. 245
Important safety notes .................. 244
Rear compartment ......................... 246
Customer Assistance Center
(CAC)..................................................... 28
Customer Relations Department....... 28
D
Dashboard
see Instrument cluster
Data
see Technical data
Daytime running lamps
Display message ............................ 206
Function/notes .............................101
Switching on/off (on-board com-
puter) ............................................. 189
Declarations of conformity................. 27
Decorative film
Cleaning instructions ..................... 267
Diagnostics connection......................28
Digital Operator's Manual
Help .................................................23
Introduction .....................................23
Digital speedometer.........................183
DIRECT SELECT lever
Automatic transmission ................. 131
Display messages
ASSYST PLUS ................................ 264
Calling up (on-board computer) ..... 193
Driving systems .............................209
Engine ............................................ 207
General notes ................................ 193
Hiding (on-board computer) ........... 193
Lights ............................................. 204
Safety systems .............................. 194
SmartKey ....................................... 218
Tires ............................................... 213
Vehicle ...........................................215
Distance control
see Active Distance Assist DISTRONIC
Distance recorder.............................182
Distance warning (warning lamp).... 229
Distance warning function
Function/notes ................................ 62
Warning lamp ................................. 229
Doors
Automatic locking (on-board com-
puter) ............................................. 189
Automatic locking (switch) ...............77
Central locking/unlocking
(SmartKey) .......................................70
Control panel ...................................38
Display message ............................ 218
Emergency locking ........................... 77
Emergency unlocking ....................... 77
Important safety notes.................... 76
Opening (from inside) ...................... 76
Drinking and driving......................... 146
Drive program
Automatic transmission ................. 135
Display ........................................... 133
8Index

ProblemPossible causes/consequences andPPSolutions
The engine does notstart. You cannot hearthe starter motor.
The on-board voltage is too low because the battery is too weak ordischarged.
XJump-start the vehicle (Ypage 282).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XAllow the starter motor to cool down for approximately two minutes.
XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.
The engine is not runningsmoothly and is misfir-ing.
There is a malfunction in the engine electronics or in a mechanicalcomponent of the engine management system.
XOnly depress the accelerator pedal slightly.Otherwise, non-combusted fuel may get into the catalytic converterand damage it.
XHave the cause rectified immediately at a qualified specialist work-shop.
The coolant temperaturegauge shows a valueabove 248 ‡ (120 †).The coolant warninglamp may also be on anda warning tone maysound.
The coolant level is too low. The coolant is too hot and the engine is nolonger being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant tocool down.
XCheck the coolant level (Ypage 263). Observe the warning notesas you do so and add coolant if necessary.
Notes on towing vehicles
The vehicle is not suitable for attaching tow barsystems, such as those used for flat towing ordinghy towing.
Attaching or using tow bar systems may result indamage to the vehicle.
When towing a vehicle with tow bar systems,safe driving characteristics cannot be guaran-teed for the towing vehicle or the towed vehicle.
The vehicle/trailer combination may swerve.
Observe the permissible towing methods(Ypage 287) and the notes on towing with bothaxles on the ground (Ypage 286).
DYNAMIC SELECT button (all vehicles
except Mercedes-AMG vehicles)
Use the DYNAMIC SELECT button to change thedrive program. Depending on the drive programselected the following vehicle characteristicswill change:
Rthe drive (engine and transmission manage-ment)
Rthe suspension (vehicles with damping sys-tem or AMG adaptive sport suspension sys-tem)
Rthe sound of the exhaust system (vehicleswith sports exhaust system)
Rthe steering
Rthe availability of the ECO start/stop function
Rthe climate control
Each time you start the engine with the Smart-Key or the Start/Stop button, drive programCis
DYNAMIC SELECT button (all vehicles except Mercedes-AMG vehicles)129
Driving and parking
Z

There is a short delay before a change in outsidetemperature appears in the multifunction dis-play.
Coolant temperature gauge
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!A display message is shown if the coolanttemperature is too high.
If the coolant temperature is over 248 ‡(120 †), do not continue driving. The enginewill otherwise be damaged.
The coolant temperature gage is in the instru-ment cluster on the right-hand side (Ypage 33).
TheHmarking in the coolant temperature gaugecorresponds to a coolant temperature ofapproximately 248 ‡ (120 †).
Under normal operating conditions and at thecorrect coolant level, the coolant temperaturegauge may rise to theHmarking.
Operating the on-board computer
Overview
CMultifunction display
DRight control panel

Example: engine oil cap
XTurn capCcounter-clockwise and remove it.
XAdd engine oil.If the oil level is at or below the MIN mark onthe oil dipstick, add 1.1 US qt (1.0 liter) ofengine oil.
XReplace capCon the filler neck and turnclockwise.Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick(Ypage 261).
Further information on engine oil (Ypage 322).
Checking and adding other service
products
Checking coolant level
GWARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear protective gloves and protective
eyewear when opening. Open the cap slowly
to release pressure.
!The coolant level must only be checked andcorrected when the engine has cooled down(coolant temperature under 104 ‡ (40 †).Checking the coolant level when the coolanttemperature is over 104‡(40 †) can lead todamage to the engine or the engine coolingsystem.
XPark the vehicle on a level surface.
Only check the coolant level when the vehicleis on a level surface and the engine has cooleddown.
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 123).
XCheck the coolant temperature display in theinstrument cluster.The coolant temperature must be below104 ‡ (40 †).
XTurn the SmartKey to positionZ(Ypage 123) in the ignition lock .
XSlowly turn capCcounter-clockwise and torelieve excess pressure.
XTurn capCfurther counter-clockwise andremove it.If the coolant is at the level of marker bar

Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
!Only add coolant that has been premixedwith the desired antifreeze protection. Youcould otherwise damage the engine.
You can find additional notes on the coolant inthe following places:
Rin the Mercedes-Benz Specifications forService Products, MB BeVo 310.1
-on the Internet athttp://bevo.mercedes-benz.com
-on the Mercedes-Benz BeVo app
Ra qualified specialized workshop
!Always use a suitable coolant mixture, evenin countries where high temperatures prevail.
Otherwise, the engine cooling system is notsufficiently protected from corrosion andoverheating.
iHave the coolant regularly replaced at aqualified specialist workshop and the replace-ment confirmed in the Maintenance Booklet.
Comply with the important safety notes for ser-vice products when handling coolant(Ypage 319).
The coolant is a mixture of water and corrosioninhibitor/antifreeze concentrate. It performsthe following tasks:
Ranti-corrosion protection
Rantifreeze protection
Rraising the boiling point
If the coolant has antifreeze protection down to-35 ‡ (-37 †), the boiling point of the coolantduring operation is approximately 266 ‡(130 †).
The antifreeze concentrate/corrosion inhibitorconcentration in the engine cooling systemshould:
Rbe at least 50%. This will protect the enginecooling system against freezing down toapproximately -35 ‡ (-37 †)
Rnot exceed 55% (antifreeze protection downto -49‡[-45 †]). Otherwise, heat will not bedissipated as effectively
Mercedes-Benz recommends a coolant or cor-rosion inhibitor/antifreeze concentrate inaccordance withMB Specifications for Service Products 310.1.
iWhen the vehicle is first delivered, it is filledwith a coolant mixture that ensures adequateantifreeze and anti-corrosion protection.
iThe coolant is checked with every mainte-nance interval at a qualified specialist work-shop.
Filling capacities
ModelCapacity
Mercedes‑AMGvehiclesApprox. 12.6 US qt(11.9l)
All other modelsApprox. 8.2 US qt(7.8 l)
Windshield washer system
Important safety notes
GWARNING
Windshield washer concentrate could ignite if
it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
!Only MB SummerFit and MB WinterFitwasher fluid should be mixed together. Thespray nozzles may otherwise becomeblocked.
Do not use distilled or de-ionized water. Other-wise, the level sensor may give a false reading.
Service products and filling capacities323
Technical data
Z