2011 MERCEDES-BENZ B-CLASS HATCHBACK oil level

Lane Keeping Assist
......................180
Lane package ................................ 177
PARKTRONI C................................. 163
Reversing camera ..........................170
Speed Limi tAssist ......................... 176
Driving tips
Aquaplaning ................................... 148
Automatic transmission .................137
Brakes ........................................... 146
DISTRONI CPLUS ........................... 160
Downhill gradient ........................... 147
Driving abroad ................................. 96
Driving in winter ............................ .148
Driving on flooded road s................ 148
Driving on wet road s...................... 148
General .......................................... 146
Icy road surfaces ........................... 149
Limited braking efficiency on sal-
ted road s....................................... 147
New brake pads/linings ................148
Running-in tips ............................... 126
Snow chains .................................. 295
Symmetrical dipped bea m............... 96
Towing atrailer .............................. 181
Tyr egrip ........................................ 148
Wet road surface ........................... 147
DVD audio (on-board computer) ......196 E
EASY-VARIO-PLUS system Luggage compartment enlarge-
ment .............................................. 248
EBD (electronic brake force distri-
bution)
Display message ............................ 208
Function/notes ................................ 67
ECO start/stop function
Deactivating/activating .................131
General information .......................129
Electrical fuses
see Fuses
Electronic Stability Program
see ESP ®
(Electroni cStability Program)
Emergenc ykey
Unlocking the driver's door ..............77Emergency key element
Function/notes ................................ 73
Locking vehicle ................................ 78
Emergency release
Driver's door .................................... 77
Emergency spare wheel
Important safety notes ..................304
Points to remember .......................305
Removing ....................................... 305
Technical data ............................... 305
Emergency unlocking
Tailgate ............................................ 79
Vehicle ............................................. 77
Engine
Display message ............................ 219
ECO start/stop function ................129
Engine number ............................... 311
Jump-starting ................................. 283
Running irregularl y......................... 132
Starting problems ..........................132
Starting the engine with the key ....127
Stopping ........................................ 144
Tow-starting (vehicle) ..................... 287
Warning lamp (engine diagnos-
tics) ............................................... 238
Engine electronics
Notes ............................................. 309
Problem (fault) ............................... 132
Engine oil
Additives ........................................ 315
Checking the oil level ..................... 263
Checking the oil level using the
dipstick .......................................... 264
Display message ............................ 221
Filling capacity ............................... 315
Notes about oil grades ................... 314
Notes on oil level/consumption ....263
Topping up ..................................... 264
Viscosity ........................................ 315
Environmental protection
Note ................................................ .20
Returning an end-of-life vehicle .......20
ESP ®
(Electronic Stability Pro-
gram) Deactivating/activating .................198
Deactivating/activating (notes) .......66
Display message ............................ 206 Index
9

Display messages Possible causes/consequences and
M Solutions
4
Check eng. oil
lev. when next
refuelling The engine oil level has dropped to the minimum level.
Aw
arning tone also sounds.
X Chec kthe oil level when next refuelling, at the latest
(Y page 263).
X If necessary, top up the engine oil (Y page 264).
X Have the engine checked at a qualified specialist workshop if
the engine oil needs topping up more often than usual. æ
Reserve fuel level The fuel level has dropped into the reserve range.
X
Refuel at the nearest filling station. ç There is only a very small amount of fuel in the fuel tank.
X
Refuel at the nearest filling station without fail. ¸
Replace
air cleaner Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X
Visit a qualified specialist workshop. !
Clean
the fuel fil‐
ter Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X
Visit a qualified specialist workshop. Driving systems
Display messages Possible causes/consequences and
M Solutions
À
Attention Assist:
Drowsiness detec‐
ted Based on certain criteria, ATTENTION ASSIST has detected fatigue
or
alack of concentration on th epart of th edriver. A warning tone
also sounds.
X If necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest. À
Attention Assist
inoperative ATTENTION ASSIST is inoperative.
X Visi taqualified specialist workshop. Display messages
221On-board computer and displays Z

X
Make sure that the windscreen wipers are
switched off.
X Pull release lever :on the bonnet.
The bonnet is released. X
Reach into the gap between the bonnet and
the radiator grille and press bonnet catch
lever ;to the left.
X Raise the bonnet. X
Pull support strut ?out of bracket A.
X Lift up support strut ?and insert it into
yellow retaining clip =. Closing the bonnet G
WARNING
Make sure that nobody can become trapped
as you close the bonnet.
X Raise the bonnet slightly and, at the same
time, remove support strut ?from yellow
retaining clip =.
X Swing support strut ?down and press it
into bracket Auntil it engages.
X Lower the bonnet and let it fall from a
height of approximately 20 cm.
X Check that the bonnet has engaged prop-
erly.
If the bonnet can be raised slightly, it is not
properly engaged. Do not press the bonnet
closed. Open the bonnet again and close it
with a little more force. Engine oil
Notes on oil level Depending on your driving style, the vehicle
consumes up to 0.8 l of oil per 1,000 km. The
oil consumption may be higher than this when
the vehicle is new or if you frequently drive at
high engine speeds.
Depending on the engine, the oil dipstick may
be installed at a different location.
When checking the oil level:
R park the vehicle on a level surface.
R the engine should be switched off for
approximately five minutes if the engine is
at normal operating temperature.
R if the engine is not at normal operating
temperature, e.g. if the engine was only
started briefly: wait about 30 minutes
before carrying out the measurement. Engine compartment
263Maintenance and care Z

Checking the oil level using the oil dip-
stick
Example
:vehicles with a petrol engine Example: vehicles with a diesel engine
X
Pull oil dipstick :out of the oil dipstick
tube.
X Wipe off oil dipstick :.
X Slowly slide oil dipstick :into the guide
tube to the stop, and take it out again.
If the level is between MIN mark =and
MAX mark ;, the oil level is correct.
X If the oil level has dropped to MIN mark
= or below, add 0.5to 1.0litre of engine
oil.
Adding engine oil G
WARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts. H
Environmental note
When topping up the oil, take care not to spill
any. If oil enters the soil or waterways, it is
harmful to the environment.
! Only use engine oils and oil filters that
have been approved for vehicles with a
service system. You can obtain a list of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
Centre.
Damage to the engine or exhaust system is
caused by the following:
R using engine oils and oil filters that have
not been specifically approved for the
service system
R changing the engine oil and oil filter after
missing the change interval required by
the service system
R using engine oil additives
! Do not add too much oil. Topping up with
too much engine oil can result in damage
to the engine or to the catalytic converter.
Have excess engine oil siphoned off. Example: engine oil filler cap
X
Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oil level is at or under the MIN mark
on the oil dipstick, add 0.5 to 1.0 litre of
engine oil. 264
Engine compartmentMaintenance and care

X
Replace cap :on the filler neck and turn
clockwise.
Make sure that the cap locks into place
securely.
X Chec kthe oil level again with the oil dip-
stick (Y page 264).
Further information on engine oil
(Y page 314). Checking and adding other service
products
Checking the coolant level G
WARNING
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has
cooled down. The coolant temperature dis-
play must show less than 40 †. Otherwise,
you could be scalded if hot coolant escapes.
! The coolant level must only be checked
and corrected when the engine has cooled
down (coolant temperature under 40 †).
Checking the coolant level when the cool-
ant temperature is over 40 † can lead to
damage to the engine or engine cooling
system. X
Park the vehicle on a level surface.
Only check the coolant level if the vehicle
is on a level surface and the engine has
cooled down.
X Turn the key to position 2in the ignition
lock (Y page 127). X
Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
40 †.
X Turn the key to position 0(Ypage 127) in
the ignition lock.
X Slowly turn cap :half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap :further anti-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the filler neck when cold, there is
enough coolant in coolant expansion
tank ;.
X If necessary, top up with coolant that has
been tested and approved by Mercedes-
Benz.
X Replace cap :and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 316).
Topping up the windscreen washer sys-
tem/headlampc leaning system G
WARNING
Windscreen washer fluid/antifreeze is highly
flammable. Avoid spilling windscreen washer
fluid/antifreeze on hot engine components as
it can ignite and burn. Severe burns could be
the result. Engine compartment
265Maintenance and care Z

X
To open: pull cap:upwards by the tab.
X Top up with the premixed washe rfluid.
X To close: press cap :onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windscreen washer system and the headlamp
cleaning system.
For further information on windscreen
washer fluid/antifreeze (Y page 316).Maintenance
ASSYST PLUS service interval display
Service messages The ASSYST PLUS service interval display
informs you of the nex
tservice due date.
The multifunction display shows a service
message for a few seconds, e.g.:
Next service A due in .. days Service A due
Service A overdue by .. days
The letter indicates which service is due.
Astands for a minor service and
B for a major
service. A number or another letter may be
displayed after the letter. This figure indicates
any necessary additional maintenance work
to be performed.
If you report this displayed information to a
qualified specialist workshop, for example a
Mercedes-Benz Service Centre, they can
infor myou of the costs the service will incur.
Information on the type of service and service
intervals (see separate Service Booklet).
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted. Maintaining the time-dependent service
schedule:
X
Note down the service due date displayed
in the multifunction display before discon-
necting the battery.
or
X After reconnecting the battery, subtract
the battery disconnection periods from the
service date shown on the display.
i The ASSYST PLUS service interval display
does not show any information on the
engine oil level. Observe the notes on the
engine oil level (Y page 263).
Hiding aservice message X
Press %ora.
Displaying service messages X
Switch the ignitio non.
X Press the =or; button to select the
Serv. menu.
X Press the 9or: button to select the
ASSYST PLUS submenu and confirm by
pressing the abutton.
The service due date appears in the multi-
functio ndisplay.
Points to remember Resetting the ASSYST PLUS service inter-
val display
!
If the ASSYST PLUS service interval dis-
play has been inadvertently reset, this set-
ting can be corrected at a qualified special-
ist workshop.
Have service work carried out as described
in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
Aq ualified specialist workshop, e.g. a
Mercedes-Ben zService Centre, will reset the
ASSYST PLUS service interval display after
the service work has been carried out. 266
MaintenanceMaintenance and care

Changing
awheel Flat tyre
You can find information on wha tto do in the
event of flat tyre in the "Flat tyre" section
(Y page 276). Instructions for driving with
MOExtended tyres in the event of a flat tyre
are also provided there. Interchanging the wheels
G
WARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tyres have different dimensions.
The wheel brakes or suspension components
may also be damaged. There is a risk of acci-
dent.
Interchange front and rear wheels only if the
wheels and tyres are of the same dimensions.
Interchanging the front and rear wheels of
differing dimensions can render the general
operating permit invalid.
Always pay attention to the instructions and
safety warnings in the "Fitting a wheel" sec-
tion (Y page 298).
The wear patterns on the front and rear tyres
differ, depending on the operating conditions.
Interchange the wheels before a clear wear
pattern has formed on the tyres. Front tyres
typically wear more on the shoulders and the
rear tyres in the centre.
On vehicles that have the same size front and
rear wheels, you can interchange the wheels
every 5,000km to 10,000 km depending on
the degree of tyre wear. Maintain the direc-
tion of tyre rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is interchanged. Check the tyre pressure and,
if necessary, restart the tyre pressure loss
warning system. Direction of rotation
Tyres with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of aquaplaning. You will only gain these ben-
efits if the correct direction of rotation is
observed.
An arrow on the sidewall of the tyre indicates
its correct direction of rotation. Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protec tthe
tyres against oil, grease, petrol and diesel. Cleaning the wheels
G
WARNING
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clean your
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent. Fitting
awheel
Preparing the vehicle X
Park the vehicle on firm, non-slippery and
level ground.
X Apply the electric parking brake manually
(Y page 145).
X Bring the front wheels into the straight-
ahead position.
X Vehicles with manual transmission:
engage first or reverse gear.
X Vehicles with automatic transmission:
move the DIRECT SELECT lever to P.
X Switch off the engine.
X Remove the key from the ignition lock.
X If a trailer is coupled to the vehicle, uncou-
ple it.
X If included in the vehicle equipment, take
the tyre-change tool kit out of the vehicle. 298
Changing
awheelWheels and tyres

D
Maximum permissible rear axle load (kg)
E Paint code
i The data shown on the vehicle identifica-
tion plate is example data. This data is dif-
ferent for every vehicle, and can deviate
from the data shown here. You can find the
data applicable to your vehicle on the vehi-
cle's identification plate. Vehicle identification number (VIN)
X
Slide the right-hand front seat to its rear-
most position.
X Fold up floor covering :in front of the
right-hand front seat.
You will see vehicle identification number
(VIN) ;stamped into the vehicle body.
The vehicle identification number (VIN) can
also be found on the vehicle identification
plate (Y page 310). Engine number
The engine number is stamped onto the
crankcase. More information can be obtained
from any Mercedes-Benz Service Centre. Service products and capacities
Important safety notes
G
WARNING
When handling, storing and disposing of any
service products, please observe the relevant regulations, as you could otherwise endanger
yourself and others.
Keep service products away from children.
To protect your health, do not allow service
products to come into contact with your eyes
or open wounds. See a doctor immediately if
any service product is swallowed.
H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner.
Service products include the following:
R fuels (e.g. petrol, diesel)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
R climate control system refrigerant
Vehicle components and their respective
lubricants must match. Mercedes-Benz rec-
ommends that you use products that have
been tested and specially approved by
Mercedes-Benz. These products are listed in
this Mercedes-Ben zOwner's Manual in the
relevant section.
You can recognise service products approved
by Mercedes-Ben zby the following inscrip-
tion 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 that
relate to a level of quality or a specification in
accordance with an MB Sheet number (such
as MB 229.5) hav enot necessarily been
approved by Mercedes-Benz.
Further information can be obtained from any
Mercedes-Benz Service Centre or on the
Internet at http://bevo.mercedes-benz.com. Service products and capacities
311Technical data Z