oil additives MERCEDES-BENZ GLC 2019 Owners Manual

Switching on/off........................... 112
Additional speedometer................... 223
Additives (engine oil)........................ 361
Address book
see also Digital Operator's Man-
ual .................................................. 268
Adjusting the volume
Multimedia system ........................ 269
After-sales service center
see ASSYST PLUS
Air bags
Deployment ..................................... 55
Display message ............................ 237
Front air bag (driver, front
passenger) ....................................... 49
Important safety notes .................... 48
Introduction ..................................... 48
Knee bag .......................................... 50
Occupant Classification System
(OCS) ............................................... 51
PASSENGER AIR BAG indicator
lamps ............................................... 44
Side impact air bag.......................... 50
Window curtain air bag.................... 50
AIR BODY CONTROL
Display message ............................ 244
Function/notes............................. 172
Lowering the rear of the vehicle .... 174
Raising the rear of the vehicle ....... 174
Setting the normal vehicle level ..... 173
Setting the raised vehicle level ...... 173
Air suspension
see AIR BODY CONTROL
Air vents
Important safety notes .................. 128
Rear ............................................... 129
Setting ........................................... 128
Setting the center air vents ........... 129
Setting the side air vents ............... 129
Air-conditioning system
see Climate control
Airbag
Warning lamp ................................. 262
Alarm
ATA (Anti-Theft Alarm system) ......... 75
Switching off (ATA) .......................... 75
Switching the function on/off
(ATA) ................................................ 75
Alarm system
see ATA (Anti-Theft Alarm system)
All-wheel drive
see 4MATIC (permanent four-
wheel drive)
AMG
Performance Seat .......................... 100
Switchable performance exhaust
system ........................................... 137
AMG menu (on-board computer)..... 223
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
AppCode
see QR code
Armrest
Stowage compartment .................. 279
Ashtray............................................... 291
Assistance display (on-board com-
puter).................................................. 219
Assistance menu (on-board com-
puter).................................................. 220
ASSYST PLUS
Displaying a service message ........ 304
Driving abroad ............................... 305
Hiding a service message .............. 304
Resetting the service interval dis-
play ................................................ 304
Service message ............................ 303
Special service requirements ......... 304
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 75
Function ........................................... 75
Switching off the alarm .................... 75
ATTENTION ASSIST
Activating/deactivating ................. 221
Display message ............................ 244
Displaying level .............................. 192
Function/notes............................. 191
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 239
see Lights
Index5

Automatic engine switch-off .......... 136
Deactivating/activating ................. 137
General information ....................... 136
Important safety notes.................. 135
Introduction ................................... 135
Electronic brake force distribution
see EBD (electronic brake force
distribution)
Electronic Stability Program
see ESP®(Electronic Stability Program)
Electronic Traction System
see ETS/4ETS (Electronic Trac-
tion System)
Emergency
Automatic measures after an acci-
dent ................................................. 58
Emergency braking
see BAS (Brake Assist System)
Emergency release
Driver's door.................................... 84
Vehicle ............................................. 84
Emergency Tensioning Devices
Activation ......................................... 55
Emergency unlocking
Tailgate ............................................ 89
Emissions control
Service and warranty information .... 28
Engine
Check Engine warning lamp ........... 262
Display message ............................ 240
ECO start/stop function ................ 135
Engine number ............................... 358
Irregular running ............................ 138
Jump-starting ................................. 322
Starting (important safety notes)... 133
Starting problems .......................... 138
Starting the engine with the
SmartKey ....................................... 133
Starting via smartphone ................ 134
Starting with the Start/Stop but-
ton ................................................. 133
Switching off .................................. 153
Tow-starting (vehicle) ..................... 327
Engine electronics
Problem (malfunction) ................... 138
Engine oil
Adding ........................................... 301
Additives ........................................ 361
Checking the oil level ..................... 300
Checking the oil level using the
dipstick .......................................... 301
Checking the oil level using the
on-board computer........................ 301
Display message ............................ 242
Filling capacity ............................... 361
General notes ................................ 360
Notes about oil grades ................... 360
Notes on oil level/consumption .... 300
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 223
Engine oil additives
see Additives (engine oil)
Entering an address
see also Digital Operator's Man-
ual .................................................. 268
ESC (Electronic Stability Control)
see ESP®(Electronic Stability Program)
ESP®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 224
Characteristics ................................. 69
Crosswind Assist ............................. 71
Deactivating/activating (button
in Mercedes-AMG vehicles) ............. 70
Deactivating/activating (notes,
except Mercedes-AMG vehicles) ...... 69
Display message ............................ 228
Function/notes................................ 68
General notes .................................. 68
Important safety information ........... 68
Trailer stabilization ........................... 71
Warning lamp ................................. 259
ETS/4ETS (Electronic Traction Sys-
tem)...................................................... 68
Exhaust
see Exhaust pipe
Exhaust check................................... 156
Exhaust pipe
Cleaning ......................................... 309
Exterior lighting
Cleaning ......................................... 308
Setting options .............................. 109
see Lights
Exterior mirrors
Adjusting ....................................... 104
Index11

Start function ................................... 79
Unlocking ......................................... 78
Kickdown
Driving tips .................................... 144
Manual gearshifting ....................... 149
Knee bag.............................................. 50
L
Lamps
see Warning and indicator lamps
Lane Change Assist
see Active Blind Spot Assist
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating ................. 196
Activating/deactivating (on-
board computer) ............................ 221
Display message ............................ 245
Function/information .................... 195
see Active Lane Keeping Assist
Lane Tracking package..................... 193
Lap time (RACETIMER)...................... 225
LATCH-type (ISOFIX) child seat
anchors................................................ 61
Level control
Display message ............................ 245
see AIR BODY CONTROL
License plate lamp (display mes-
sage)................................................... 239
Light function, active
Display message ............................ 239
Light switch
Operation ....................................... 109
Lights
Adaptive Highbeam Assist ............. 111
Automatic headlamp mode ............ 109
Cornering light function ................. 111
Fogged up headlamps.................... 112
General notes ................................ 109
Hazard warning lamps ................... 111
High beam flasher .......................... 110
High-beam headlamps................... 110
Light switch ................................... 109
Low-beam headlamps.................... 110
Parking lamps ................................ 110
Rear fog lamp ................................ 110
Setting exterior lighting ................. 109
Standing lamps .............................. 110
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 222
Turn signals ................................... 110
see Interior lighting
Loading guidelines............................ 278
Locking
see Central locking
Locking (doors)
Automatic ........................................ 84
Emergency locking ........................... 84
From inside (central locking but-
ton) .................................................. 83
Locking centrally
see Central locking
Low-beam headlamps
Display message ............................ 239
Replacing bulbs............................. 114
Switching on/off........................... 110
Lubricant additives
see Additives (engine oil)
Lumbar support
Adjusting the 4-way lumbar sup-
port ................................................ 100
M
M+S tires............................................ 332
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions).................................................. 307
mbrace
Display message ............................ 233
Mechanical key
Function/notes................................ 79
General notes .................................. 79
Inserting .......................................... 79
Locking vehicle ................................ 84
Removing ......................................... 79
Unlocking the driver's door .............. 84
Media Interface
see Digital Operator's Manual
Memory card (audio)......................... 217
14Index

Mercedes-Benz Specifications for ServiceProducts is available at any authorizedMercedes-Benz Center.
The following cause engine failure or damageto the exhaust system:
RUse of engine oils and oil filters that havenot been expressly approved for the servicesystem
RReplacement of engine oil and oil filter afterthe replacement interval specified by theservice system has expired
RUse of engine oil additives
!Do not add too much oil. adding too muchengine oil can result in damage to the engineor to the catalytic converter. Have excessengine oil siphoned off.
Add engine oil (example)
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 (1.0l)of engineoil.
XReplace capCon the filler neck and tightenclockwise.Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick(Ypage 301).
Further information on engine oil (Ypage 360).
Additional service products
Important safety notes
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
GWARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There
is a risk of injury.
If you need to do any work inside the engine
compartment:
Rswitch off the ignition
Rnever reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area
Rremove jewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from moving parts
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.
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.
302Engine compartment
Maintenance and care

!To ensure the longevity and full perform-ance of the engine, only premium-gradeunleaded gasoline may be used.
If premium-grade unleaded gasoline isunavailable and you have to refuel with regu-lar unleaded gasoline, observe the followingprecautions:
ROnly fill the fuel tank to half full with regularunleaded gasoline and add the rest as soonas possible with premium-grade unleadedgasoline.
RDo not drive at the maximum design speed.
RAvoid sudden acceleration and enginespeeds over 3000 rpm.
You will usually find information about the fuelgrade on the fuel pump. If you cannot find thelabel on the fuel pump, ask the gas station staff.
iFor further information, consult a qualifiedspecialist workshop or visithttp://www.mbusa.com (USA only).
As a temporary measure, if the recommendedfuel is not available, you may also use regularunleaded gasoline with an octane rating of87 AKI/91 RON. This may reduce engine per-formance and increase fuel consumption. Avoiddriving at full throttle and sudden acceleration.Never refuel using gasoline with a lower AKI.
Information on refueling (Ypage 151).
Additives
!Operating the engine with fuel additivesadded later can lead to engine failure. Do notmix fuel additives with fuel. This does notinclude additives for the removal and preven-tion of residue buildup. gasoline must only bemixed with additives recommended byMercedes-Benz. Comply with the instructionsfor use on the product label. More informationabout recommended additives can beobtained from any authorized Mercedes-BenzCenter.
Mercedes-Benz recommends that you use bran-ded fuels that have additives.
The fuel quality available in some countries maynot be sufficient. Residue could build up in thefuel injection system as a result. In such cases,and in consultation with an authorizedMercedes-Benz Center, the fuel may be mixedwith the cleaning additive recommended byMercedes-Benz. You must observe the notesand mixing ratios specified on the container.
Engine oil
General notes
!Do not use engine oil or an oil filter withspecifications deviating from those expresslyrequired for the prescribed service intervals.Do not change the engine oil or oil filter inorder to set replacement intervals longer thanthose prescribed. This could otherwise causedamage to the engine or exhaust gas after-treatment.
Follow the instructions on the service intervaldisplay for changing the engine oil. This couldotherwise cause damage to the engine orexhaust gas aftertreatment.
When handling engine oil, observe the importantsafety notes on service products (Ypage 358).
The engine oils are matched to the performanceof Mercedes-Benz engines and service intervals.You should therefore only use engine oils and oilfilters that are approved for vehicles with main-tenance systems.
Information on approved engine oils and oil fil-ters can be obtained at the following places:
Rfrom an authorized Mercedes-Benz Center
Rin the Mercedes-Benz Specifications for Ser-vice Products by entering the designation
-on the Internet athttp://bevo.mercedes-benz.com
-on the Mercedes-Benz BeVo app
The table shows which engine oils have beenapproved for your vehicle.
ModelMB-Freigabe orMB-Approval
Mercedes-AMG vehicles229.5
All other models229.5, 229.6
360Service products and filling capacities
Technical data

Use only SAE 0W-40 or SAE 5W-40 engine oilsfor Mercedes-AMG vehicles.
iMB approval is indicated on the oil contain-ers.
Filling capacities
The following values refer to an oil changeincluding the oil filter.
ModelCapacity
Mercedes-AMGGLC 63 4MATIC+Coupe
Mercedes-AMGGLC 63 S 4MATIC+Coupe
9.5 US qt (9.0l)
All other models6.9 US qt (6.5l)
Additives
!Do not use any additives in the engine oil.This could damage the engine.
Brake fluid
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
When handling brake fluid, observe the impor-tant safety notes on service products(Ypage 358).
The brake fluid change intervals can be found inthe Maintenance Booklet.
Only use brake fluid approved by Mercedes-Benz in accordance with MB-Freigabe or MB-Approval 331.0.
Information on approved brake fluid can beobtained in the following places:
Rfrom an authorized Mercedes-Benz Center
Rin the Mercedes-Benz Specification for Ser-vice Products by entering the designation
-on the Internet athttp://bevo.mercedes-benz.com
-on the Mercedes-Benz BeVo app
iHave the brake fluid regularly replaced at aqualified specialist workshop in accordancewith the replacement intervals and thereplacement confirmed in the MaintenanceBooklet.
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.
Service products and filling capacities361
Technical data
Z