2017 MERCEDES-BENZ B-Class coolant

Pre-entry climate control at time
of departure (on-board computer
)..1 64
Pre-entry climate control via key ... 105
Pre-entry climate control via key
(on-board computer) ..................... .164
Problem with the rear window
defroster ........................................ 103
Problems with cooling with air
dehumidification ............................ 101
Refrigerant ..................................... 285
Refrigerant filling capacity ............. 286
Setting the air distribution ............. 102
Setting the air vents ..................... .106
Setting the airflow ......................... 102
Setting the temperature ................ 101
Switching air-recirculation mode
on/off ............................................ 104
Switching on/off ........................... 100
Switching the rear window
defroster on/off ............................ 103
Switching the ZONE function
on/off ............................................ 102
Cockpit
Overview .......................................... 31
COMAND
Generated electricity ..................... 120
Switching on/off ........................... 202
COMAND display
Cleaning ......................................... 238
Combination switch ............................ 88
Compass
Calibrating ..................................... 229
Calling up ....................................... 228
Magnetic field zone maps .............. 229
Setting .......................................... .229
Connecting a USB device
see also Digital Operator's Man-
ual ................................................. .201
Consumption statistics (on-board
computer) .......................................... 156
Controller .......................................... .202
Convenience closing feature .............. 77
Convenience opening feature ............ 76
Convenience opening/closing (air-
recirculation mode) ........................... 104
Coolant (engine)
Checking the level ......................... 232 Filling capacity ............................... 285
Important safety notes .................. 284
Cooling
see Climate control
Copyright ............................................. 29
Cornering light function
Changing the bulb ............................ 93
Display message ............................ 178
Function/notes ................................ 89
Cruise control
Activation conditions ..................... 137
Cruise control lever ....................... 136
Deactivating ................................... 137
Display message ............................ 184
Driving system ............................... 136
Function/notes ............................ .136
Important safety notes .................. 136
Setting a speed .............................. 137
Storing and maintaining current
speed ............................................. 137
Cup holder
Center console .............................. 216
Important safety notes .................. 216
Rear compartment ......................... 217
Customer Assistance Center
(CAC) ..................................................... 27
Customer Relations Department ....... 27 D
Data see Technical data
Daytime running lamps
Display message ............................ 180
Function/notes ................................ 87
Switching on/off (on-board com-
puter) ............................................. 166
Declarations of conformity ................. 26
Departure time
Setting (on-board computer) .......... 163
Diagnostics connection ......................26
Digital Operator's Manual
Help ................................................ .21
Introduction .....................................21
Digital speedometer .........................158
DIRECT SELECT lever
Transmission ................................. 112 Index
7

Reverse gear
Engaging ........................................ 112
Reversing feature
Side windows ................................... 75
Roadside Assistance (breakdown) .... 24
Roof carrier ........................................ 215
Roof lining and carpets (cleaning
guidelines) ......................................... 240
Roof load (maximum) ........................ 286
Route guidance
see also Digital Operator's Man-
ual .................................................. 201 S
Safety Children in the vehicle ..................... 52
see Occupant safety
Safety notes
High voltage ..................................... 25
High-voltage electrical system ......... 25
Safety system
see Driving safety systems
SD card
Inserting ........................................ 206
Inserting/removing ........................ 206
Removing ....................................... 206
SD memory card
see also Digital Operator's Man-
ual .................................................. 201
Search & Send
see also Digital Operator's Man-
ual .................................................. 201
Seat belts
Adjusting the height ......................... 42
center rear-compartment sea t......... 42
Cleaning ......................................... 239
Correct usage .................................. 41
Fastening ......................................... 42
Important safety guidelines ............. 40
Introduction ..................................... 40
Releasing ......................................... 42
Warning lamp ................................. 190
Warning lamp (function) ................... 42
Seats
Adjusting (electrically) ..................... 80
Adjusting the 4-way lumbar sup-
port .................................................. 81 Adjusting the head restraint ............ 80
Cleaning the cover ......................... 239
Correct driver's seat position ........... 79
Folding the backrest (rear com-
partment) forwards/back .............. 211
Important safety notes .................... 79
Seat heating problem ...................... 82
Storing settings (memory func-
tion) ................................................. 86
Switching seat heating on/of f......... 82
Securing cargo .................................. 212
Selector lever
Cleaning ......................................... 239
see DIRECT SELECT lever
Sensors (cleaning instructions) ....... 237
Service menu (on-board com-
puter) .................................................. 163
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 284
Coolant (engine) ............................ 284
Important safety notes .................. 283
Refrigerant (air-conditioning sys-
tem) ............................................... 285
Washer fluid ................................... 285
Setting the air distribution ............... 102
Setting the airflow ............................ 102
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 201
Setting the language
see also Digital Operator's Man-
ual .................................................. 201
Setting the maximum charge cur-
rent (Control system) ........................ 165
Setting the time
see also Digital Operator's Man-
ual .................................................. 201
Settings
Factory (on-board computer) ......... 166
On-board compute r....................... 163
Side impact air bag ............................. 45
Side marker lamp (display mes-
sage) ................................................... 179
Side windows
Cleaning ......................................... 236 Index
15

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:
R the vehicle becomes stuck, e.g. on a high
curb or an unpaved road
R you drive too fast over an obstacle, e.g. a
curb, speed bumps or a pothole in the road
R a heavy object strikes the underbody or
parts of the chassis
In situations like this, the body, the under-
body, chassis parts, wheels or tires could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no longer withstand the strain they are designed
to.
In such situations, have the vehicle checked
and 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.
Danger of electric shock G
DANGER
The vehicle's high-voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high- voltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop. All of the vehicle's high-voltage electrical sys-
tem components are marked with yellow warn-
ing stickers which warn you about high voltages.
The cables of the vehicle's high-voltage electri-
cal system are orange.
When towing a vehicle after an accident, be sure to observe the following sections:
R Transporting the vehicle (Y page 254)
R Towing the vehicle with the front axle raised
(Y page 253)
R Towing a vehicle with both axles on the
ground (Y page 253)
Read the important safety instructions on tow-
ing away (Y page 251).
The ignition must be switched off when carrying out general tasks, such as changing bulbs or
checking the coolant level.
Automatic switching off of the vehicle's high-voltage electrical system If the restraint systems are activated during an
accident, the vehicle's high-voltage electrical
system is automatically deactivated.
This is to ensure that you do not come into con-
tact with high voltage.
Automatic protection from switching
on of the vehicle's high-voltage electri-
cal system The vehicle's high-voltage electrical system is
not activated when the vehicle is started if:
R
a serious electrical insulation malfunction is
detected in the vehicle's high-voltage electri-
cal system
R an electrical connection in the vehicle's high-
voltage electrical system is disconnected Operating safety
25Introduction Z

Drive system
Display messages
Possible causes/consequences and
0050
0050Solutions 00BD
Check Coolant See Check Coolant See
Operator's Manual Operator's Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the cooling
system. The drive system will otherwise be damaged.
X If the coolant needs topping up more often than usual, have the
cooling system checked at a qualified specialist workshop. 003D
See Operator's Man‐ See Operator's Man‐
ual ual The 12 V battery is no longer being charged.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 128).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. 003D
Stop Vehicle See Stop Vehicle See
Operator's Manual Operator's Manual The 12 V battery is no longer being charged and the battery charge
level is too low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the drive system.
X Secure the vehicle against rolling away (Y page 128).
X Do not drive on.
X Do not tow the vehicle.
X Consult a qualified specialist workshop. High-voltage battery
Display messages
Possible causes/consequences and
0050 0050Solutions 00D9
Battery Reserve Battery Reserve
Level Level The condition of charge of the high-voltage battery has dropped into
the reserve range.
When the remaining range is 0 km, the message appears again. The
power available is then continuously reduced. The reduction in power
is represented in the E-CELL display (Y page 152).
X Charge the high-voltage battery. 00D7
Batterieleistung Batterieleistung
zu
zu
gering, Anhalten,
gering, Anhalten,
sofort laden sofort laden(Battery
capacity too low. Stop
Charge immediately) A warning tone also sounds. The E
‑CELL display (Ypage 152) and the
charge level display (Y page 153) go down to 0. The condition of
charge of the high-voltage battery is so low that operation is no longer
possible. The drive system cannot be restarted.
If you then try to restart the drive system, the Batterieleistung
Batterieleistung zu zu
gering,
gering, Anhalten,
Anhalten, sofort
sofortladen
laden(Battery capacity too low. Stop
Charge immediately) message appears.
X Park the vehicle and charge the high-voltage battery. Display
messages
181On-board computer and displays Z

X
Reach into the gap between the hood and the
radiator trim and press hood catch lever 0044to
the left.
X Raise the hood. X
Pull support strut 0085out of bracket 0083.
X Lift up support strut 0085and insert it into yel-
low retaining clip 0087.
Closing the hood X
Raise the hood slightly and, at the same time,
remove support strut 0085from yellow retaining
clip 0087.
X Swing support strut 0085down and press it into
bracket 0083until it engages.
X Lower the hood and let it fall from a height of
approximately 8 in (20 cm).
X Check that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Do not press the hood
closed. Open the hood again and close it with a little more force. Checking and adding other service
products
Checking coolant level G
WARNING
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 gloves and eye protection. Slowly
open the cap to relieve pressure. !
The coolant may only be checked and cor-
rected when the engine is cool (coolant tem-
perature below 104 ‡ (40 †).Checking the
coolant when the coolant temperature is
above 104 ‡ (40 †) may result in damage to
the engine or to the engine cooling system. X
Park the vehicle on a level surface.
Only check the coolant level when the vehicle
is on a level surface and the drive system has
cooled down.
X Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X Check the coolant temperature display in the
instrument cluster.
The coolant temperature must be below
104 ‡ (40 †).
X Turn the SmartKey to position 0in the ignition
lock (Y page 109).
X Slowly turn cap 0043counter-clockwise to
relieve excess pressure.
X Turn cap 0043further counter-clockwise and
remove it.
If the coolant is at the level of marker bar 0087
in the filler neck when cold, there is enough
coolant in coolant expansion tank 0044.
X If necessary, add coolant that has been tested
and approved by Mercedes-Benz.
X Replace cap 0043and turn it clockwise as far as
it will go.
For further information on coolant, see
(Y page 284).
Windshield washer system G
WARNING
Certain components in the engine compart-
ment may be very hot, e.g. the drive system
and radiator. Working in the engine compart-
ment poses a risk of injury. 232
Engine compartmentMaintenance and care

care cannot always be completely repaired. In
such cases, visit a qualified specialist workshop.
X Remove dirt immediately, where possible,
while avoiding rubbing too hard.
X Soak insect remains with insect remover and
rinse off the treated areas afterwards.
X Soak bird droppings with water and rinse off
the treated areas afterwards.
X Remove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a
cloth soaked in petroleum ether or lighter
fluid.
X Use tar remover to remove tar stains.
X Use silicone remover to remove wax.
If water no longer forms "beads" on the paint
surface, use the paint care products recommen-
ded and approved by Mercedes-Benz. This is the
case approximately every three to five months,
depending on the climate conditions and the
care product used.
If dirt has penetrated the paint surface or if the
paint has become dull, the paint cleaner recom- mended and approved by Mercedes-Benz
should be used.
Do not use these care products in the sun or on
the hood while the hood is hot.
X Use a suitable touch-up stick, e.g. MB Touch-
Up Stick, to repair slight damage to the paint-
work quickly and provisionally.
Matte finish care !
Never polish the vehicle or the light alloy
wheels. Polishing causes the finish to shine.
! The following may cause the paint to
become shiny and thus reduce the matte
effect:
R strong rubbing of the paintwork with
unsuitable materials
R frequent use of automatic car washes
R washing the vehicle in direct sunlight
! Never use paint cleaner, buffing or polishing
products, or gloss preserver, e.g. wax, for the purpose of paintwork care. These products
are only suitable for high-gloss surfaces. Their
use on vehicles with matte paintwork leads to considerable surface damage or, more spe-
cifically, to shiny, spotted areas.
Always have paintwork repairs carried out at a
qualified specialist workshop. !
Do not use wash programs with a hot wax
treatment under any circumstances.
Observe these notes if your vehicle has a clear
matte finish. This will help you to avoid damage to the paintwork due to incorrect treatment.
These notes also apply to light alloy wheels with
a clear matte finish.
The vehicle should ideally be washed by hand
using a soft sponge, car shampoo and plenty of water.
Use only insect remover and car shampoo from
the range of approved Mercedes-Benz care
products. Cleaning the vehicle parts
Cleaning the wheels G
WARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
! Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park your vehicle for a long period of
time directly after cleaning, particularly after
cleaning the wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosion of the brake discs and pads. Therefore,
drive for a few minutes after cleaning. By
heating up the brakes, the brake discs and
pads dry. The vehicle can then be parked for a long period of time.
Cleaning the windows G
WARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury. 236
CareMaintenance and care

Uniform Tire Quality Grading Standards
A uniform standard to grade the quality of tires
with regards to tread quality, tire traction and
temperature characteristics. The quality grad-
ing assessment is made by the manufacturer
following specifications from the U.S. govern-
ment. The ratings are molded into the sidewall of the tire.
Recommended tire pressures
The recommended tire pressure applies to the
tires mounted at the factory.
The Tire and Loading Information placard con-
tains the recommended tire pressures for cold
tires on a fully loaded vehicle and for the maxi-
mum permissible vehicle speed.
The tire pressure table contains the recommen-
ded pressures for cold tires for various operat-
ing conditions, i.e. differing load and speed con-
ditions.
Increased vehicle weight due to optional
equipment
The combined weight of all standard and
optional equipment available for the vehicle,
regardless of whether it is actually installed on
the vehicle or not.
Rim
This is the part of the wheel on which the tire is
mounted.
GAWR (Gross Axle Weight Rating)The GAWR is the maximum gross axle weight
rating. The actual load on an axle must never
exceed the gross axle weight rating. The gross
axle weight rating can be found on the vehicle
identification plate on the B-pillar on the driver's
side.
Speed rating
The speed rating is part of the tire identification.
It specifies the speed range for which the tire is approved.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight of
the vehicle including fuel, tools, the spare wheel, accessories installed, occupants, luggage and
the drawbar noseweight, if applicable. The gross vehicle weight must not exceed the gross vehi-
cle weight rating GVWR as specified on the vehi-
cle identification plate on the B-pillar on the
driver's side. GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permissible gross
weight of a fully loaded vehicle (the weight of the
vehicle including all accessories, occupants,
fuel, luggage and the drawbar noseweight, if
applicable). The gross vehicle weight rating is
specified on the vehicle identification plate on
the B-pillar on the driver's side.
Maximum loaded vehicle weight
The maximum weight is the sum of:
R the curb weight of the vehicle
R the weight of the accessories
R the load limit
R the weight of the factory installed optional
equipment
Kilopascal (kPa) Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1 psi. Another unit for tire pressure is
bar. 100 kilopascals (kPa) are the equivalent of
1 bar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewall of
the tire. This specifies the load-bearing capacity more precisely.
Curb weight
The weight of a vehicle with standard equipment
including the maximum capacity of fuel, oil and
coolant. It also includes the air-conditioning sys- tem and optional equipment if these are instal-
led in the vehicle, but does not include passen-
gers or luggage.
Maximum load rating
The maximum tire load is the maximum permis- sible weight in kilograms or lbs for which a tire is
approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one tire.
Maximum load on one tire
Maximum load on one tire. This is calculated by dividing the maximum axle load of one axle by
two. 274
All about wheels and tiresWheels and tires

from the data shown here. You can find the
data applicable to your vehicle on the vehicle
identification plate. Vehicle identification number (VIN)
X
Slide the right-hand front seat to its rearmost
position.
X Fold floor covering 0043upwards.
You will see VIN 0044.
The VIN can also be found on the vehicle iden-
tification plate (Y page 282). 0087
Emissions control information plate
0085 VIN (on the lower edge of the windshield) Electric motor number
The electric motor number can be found at the
bottom of the electric motor. You can obtain
further information from any qualified specialist
workshop. Service products and filling capaci-
ties
Important safety notes
G
WARNING
Service products may be poisonous and haz-
ardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels of the respective original containers. Always
store service products sealed in their original containers. Always keep service products out
of the reach of children. H
Environmental note
Dispose of service products in an environ-
mentally responsible manner.
Service products include the following: R Lubricants, e.g. transmission oil
R Coolant
R Brake fluid
R Windshield washer fluid
R Climate control system refrigerant
Components and service products must match.
Only use products recommended by Mercedes-
Benz. Damage which is caused by the use of
products which have not been recommended is
not covered by the Mercedes-Benz warranty or
goodwill gestures. They are listed in this
Mercedes-Benz Operator's Manual in the appro- priate section.
Information on tested and approved products
can be obtained at a Mercedes-Benz Service
Center or on the Internet at
http://bevo.mercedes-benz.com.
You can recognize service products approved byMercedes-Benz by the following inscription on
the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB-Approval (e.g. MB-Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g. MB
229.5). They have not necessarily been
approved by Mercedes-Benz. Service products and filling capacities
283Technical data Z