Get Maintenance and care -> Engine compartment Guide for Mercedes B Class SUV First Generation (2005-2010)

Useful information

This Owner's Manual describes all models

and all standard and optional equipment

available to your vehicle at the time of pub-

lication of the Owner's Manual. Country-

specific deviations are possible. Please

note that your vehicle may not be equipped

with all features described. This also

applies to safety-relevantsystems and

functions.

Please read the information on qualified

specialist workshops (Y page 22).

Engine compartment

Bonnet

Opening the bonnet

WARNING

Do notpull the release leverwhile the vehicle

is in motion. If you do so, the bonnet may open

up and block your view.

WARNING

There is a risk of injury if the bonnet is open,

even if the engine is not running.

Some engine components can become very

hot.

To avoid the risk of burns, only touch those

components described in the Owner's Manual

and observe the relevant safety notes.

WARNING

The radiator fan between the radiator and the

engine can start automatically, even if the key

has been removed from the ignition lock. For

this reason, you must not reach into the fan

rotation area. You could otherwise be injured.

Vehicles with apetrol engine: The elec-

tronic ignitionsystem uses high voltage. For

this reason, you mustnever touch ignition

system components (ignition coil, ignition

cables, spark plug connectors or test socket)

while:

the engine is running

the engine is being started

the ignition is switched on and the engine

is being cranked by hand

You could otherwise suffer an electric shock

and be seriously or even fatally injured.

Vehicles with adiesel engine: The elec-

tronic injection control uses high voltage. For

this reason, you must never touch injection

system components while:

the engine is running

the engine is being started

the ignition is switched on

You could otherwise suffer an electric shock

and be seriously or even fatally injured.

WARNING

The windscreen wipers and wiper linkage

could be set in motion.

When the bonnet is open, you or others could

be injured by the wiper linkage.

Make sure that the windscreen wipers are

switched off and that the key has been pulled

out of the ignition lock before opening the

bonnet.

Make sure that the windscreen wipers are

not folded away from the windscreen.Oth-

erwise, you could damage the windscreen

wipers or the bonnet.

262

Engine compartment

Maintenance and care

Make sure that the windscreen wipers are

switched off.

Pull release lever : on the bonnet.

The bonnet is released.

Reach into the gap between the bonnet and

the radiator grille and press bonnet catch

lever ; to the left.

Raise the bonnet.

Pull support strut ? out of bracket A.

Lift up support strut ? and insert it into

yellow retaining clip =.

Closing the bonnet

WARNING

Make sure that nobody can become trapped

as you close the bonnet.

Raise the bonnet slightly and, at the same

time, remove support strut ? from yellow

retaining clip =.

Swing support strut ? down and press it

into bracket A until it engages.

Lower the bonnet and let it fall from a

height of approximately 20 cm.

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:

park the vehicle on a level surface.

the engine should be switched off for

approximately five minutes if the engine is

at normal operating temperature.

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

263

Maintenance and care

Checking the oil level using the oil dip-

stick

Example:vehicles with a petrol engine

Example: vehicles with a diesel engine

Pull oil dipstick : out of the oil dipstick

tube.

Wipe off oil dipstick :.

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.

If the oil level has dropped to MIN mark

= or below, add 0.5to 1.0litre of engine

oil.

Adding engine oil

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.

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:

using engine oils and oil filters that have

not been specifically approved for the

service system

changing the engine oil and oil filter after

missing the change interval required by

the service system

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

Turn cap : anti-clockwise and remove it.

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 compartment

Maintenance and care

Replace cap : on the filler neck and turn

clockwise.

Make sure that the cap locks into place

securely.

Checkthe 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

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.

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.

Turn the key to position 2 in the ignition

lock (Y page 127).

Check the coolant temperature display in

the instrument cluster.

The coolant temperature must be below

40 †.

Turn the key to position 0(Y page 127) in

the ignition lock.

Slowly turn cap : half a turn anti-clock-

wise to allow excess pressure to escape.

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 ;.

If necessary, top up with coolant that has

been tested and approved by Mercedes-

Benz.

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/headlampcleaning system

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

265

Maintenance and care

To open: pull cap : upwards by the tab.

Top up with the premixed washerfluid.

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 nextservice 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. A

stands 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

informyou 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:

Note down the service due date displayed

in the multifunction display before discon-

necting the battery.

After reconnecting the battery, subtract

the battery disconnection periods from the

service date shown on the display.

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

Press % or a.

Displaying service messages

Switch the ignitionon.

Press the = or ; button to select the

Serv.

menu.

Press the 9 or : button to select the

ASSYST PLUS submenu and confirm by

pressing the a button.

The service due date appears in the multi-

functiondisplay.

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.

Aqualified specialist workshop, e.g. a

Mercedes-BenzService Centre, will reset the

ASSYST PLUS service interval display after

the service work has been carried out.

266

Maintenance

Maintenance and care

Maintenance and care -> Engine compartment for Your Mercedes B Class SUV First Generation (2005-2010)

Related Topics

Popular Owner Manuals

Latest Owner Manuals