2008 MERCEDES-BENZ B-CLASS HATCHBACK engine

Vehicle electronics
275Vehicle electronics
Tampering with the engine electron-
ics
G
Risk of accident
Only have work on the engine electronics
and related components carried out at a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. Mercedes-
Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety
or on safety-related systems must be car-
ried out at a qualified specialist workshop.
The vehicle's roadworthiness could other-
wise be affected.
! Only have work done on the engine elec-
tronics and its associated parts, such as
control units, sensors and connector leads,
carried out at a qualified specialist work-
shop, e.g. a Mercedes-Benz Service
Centre. Otherwise, vehicle components
may wear more quickly and your vehicle's
warranty and operating permit may be inva-
lidated. Retrofitting electrical and electronic
equipment
Electrical and electronic equipment can jeop-
ardise the operating safety of your vehicle. If
equipment of this kind is retrofitted, it must
be type-approved and bear the emark. The
e mark may be obtained from the equipment
manufacturer or an authorised testing centre.
! Damage or consequential damage arising
from fitting equipment not approved by
Mercedes-Benz is not covered by the
Mercedes-Benz warranty.
If you wish to install two-way radios in the
vehicle, you must obtain formal approval.
Mercedes-Benz approves the installation of
two-way radios if such equipment is installed
professionally and a low-reflection exterior
aerial is used.
The transmission output of the two-way radio
must not exceed the maximum transmission
outputs listed. G
Risk of accident
Two-way radios may interfere with the vehi-
cle electronics and thereby jeopardise the
operational safety of the vehicle and your
own safety if: R
they do not have an exterior aerial.
R the exterior aerial is not a low-reflection
aerial.
R the exterior aerial has been fitted incor-
rectly. G
Risk of injury
Excessive electromagnetic radiation may
also cause damage to your health and the
health of others. Using an exterior aerial
takes into account current scientific dis-
cussions relating to the possible health haz-
ards that may result from electromagnetic
fields.
For this reason, only have the exterior aerial
fitted at a qualified specialist workshop
which has the necessary specialist knowl-
edge and tools to carry out the work
required. Mercedes-Benz recommends
that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
i Mercedes-Benz recommends the use of
an approved exterior aerial. This ensures
optimal reception quality for mobile tele- Technical data
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Vehicle identification plates
277Vehicle identification number (VIN)
In addition to the information on the vehicle
identification plate, the vehicle identification
number (VIN) is also stamped onto the vehicle
body. It is located in the engine compartment
below the windscreen frame. 1
Vehicle identification number (VIN) X
Open the bonnet (Y page 171).
You will see vehicle identification number
(VIN) 1. Engine number
The engine number is stamped on the engine
block (crankcase). More information can be
obtained from any Mercedes-Benz Service
Centre. Technical data
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Engine
278 Engine
B 150
B 150
BlueEFFICIENCY B 170
B 170
BlueEFFICIENCY B 200 B 200 Turbo
Rated output
70 kW (95 bhp) 85 kW (116 bhp) 100 kW (136 bhp) 142 kW (193 bhp)
At engine speed
5,200 rpm 5,500 rpm 5,500 rpm 5,000 rpm
Rated torque
140 Nm 155 Nm 185 Nm 280 Nm
At engine speed
3,500 – 4,000 rpm 3,500 – 4,000 rpm 3,500 – 4,000 rpm 1,800 – 4,850 rpm
Number of cylinders
4 4 4 4
Displacement
1,498 cm
3 1,699 cm
3 2,034 cm
3 2,034 cm
3 Maximum engine speed
6,300 rpm 6,300 rpm 6,300 rpm 6,000 rpm
B 180 CDI B 200 CDI
Rated output
80 kW (109 bhp) 103 kW (140 bhp)
At engine speed
4,200 rpm 4,200 rpm
Rated torque
250 Nm
300 Nm (280 Nm
33
) At engine speed
1,600 – 2,600 rpm 1,600 – 3,000 rpm
Number of cylinders
4 4
33
Vehicles with AUTOTRONIC* Technical data
* optional
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Engine
279B 180 CDI B 200 CDI
Displacement
1,991 cm
3 1,991 cm
3 Maximum engine speed
4,800 rpm 4,800 rpm Technical data
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Tyres and wheels
285Spare wheel*
Your vehicle may be equipped with TIREFIT, a "Minispare" emergency spare wheel* or a spare wheel*, depending on the country, the engine
and the wheels fitted.
i Vehicles with MOExtended tyres (tyres with run-flat characteristics) are not equipped with a TIREFIT kit at the factory. B 150 /
B 150 BlueFFICIENCY /
B 170 /
B 170 BlueFFICIENCY B 200 / B 180 CDI /
B 200 CDI B 200 Turbo
16" "Minispare" emer-
gency spare wheel*
43 Tyres
T 125/9
0 R16 98M T 125/90 R16 98M T 125/90 R16 98M
Tyre pressure
4.2 bar 4.2 bar 4.2 bar
Light-alloy wheels
3.5B x 16 H2 ET 32 3.5B x 16 H2 ET 32 3.5B x 16 H2 ET 32
43
Use of snow chains not possible. Technical data
* optional
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Service products and capacities
291Service products and capacities
Notes on service products and capaci-
ties
Service products are:
R fuels (e.g. petrol, diesel)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
Mercedes-Benz recommends that you only
use those products which have been tested
and specially approved by Mercedes-Benz for
your vehicle and are listed in the Mercedes-
Benz Owner's Manual in the relevant chapter
since:
R parts and service products are matched
R damage caused by the use of non-approved
service products is not covered by the war-
ranty
You can recognise service products approved
by Mercedes-Benz by 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 Approval have not
necessarily been approved by Mercedes-
Benz.
You can obtain further information from any
Mercedes-Benz Service Centre. G
Risk of injury
When handling, storing and disposing of
any service products, please observe the
relevant regulations, as, otherwise, you
could 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 imme-
diately if any service product is swallowed. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner. Fuels
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine before refuelling. G
Risk of injury
Do not allow fuel to come into contact with
skin or clothing.
Allowing fuels to come into direct contact
with your skin or inhaling fuel vapours is
damaging to your health.
Tank capacity Total capacity 54 l
Of which reserve
fuel
Approximately 6 l
!
Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Never mix
diesel with petrol. Even small amounts of
the wrong fuel result in damage to the
injection system. Damage resulting from Technical data
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Service products and capacities
292adding the wrong fuel is not covered by the
warranty.
More information about refuelling and fuels
can be found on (Y page 168). Introduction to fuel consumption
The vehicle will use more fuel than usual in
the following situations:
R at very low temperatures
R in urban traffic
R on short trips
R when towing a trailer
R in mountainous terrain The consumption figures have been deter-
mined according to EU Directive
RL 80
/1268 /EEC.
i Only for certain countries: the respective
current consumption and emission values
of your vehicle can be found in the COC
papers (EC-CERTIFICATE OF CONFORM-
ITY). These documents are supplied when
the vehicle is delivered.
! Do not use any special additives, as they
can cause malfunctions and engine dam-
age. Damage resulting from the use of such
additives is not covered by the Mercedes-
Benz warranty. H
Environmental note
CO 2(carbon dioxide) is the gas which sci-
entists believe to be principally responsible
for global warming (the greenhouse effect).
Your vehicle's CO 2emissions are directly
related to fuel consumption and therefore
depend on:
R efficient use of the fuel by the engine
R driving style
R other non-technical factors, such as envi-
ronmental influences or road conditions
You can minimise your vehicle's CO 2emis-
sions by driving carefully and having it serv-
iced regularly. Technical data
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Service products and capacities
295Engine oil
A list of engine oils tested and approved in accordance with the Mercedes-Benz Specifications for Service Products is available from any
Mercedes-Benz Service Centre. Engine oils which have been approved by Mercedes-Benz have the MB Sheet number indicated on the oil
container. The table shows which MB Sheet Number applies to which engine: B 150
B 150 BlueEFFICIENCY B 170
B 170 BlueEFFICIENCY B 200 B 200 Turbo
MB Sheet Number
229.3/229.31
229.5/229.51 229.3/229.31
229.5/229.51 229.3/229.31
229.5/229.51 229.3/229.31
229.5/229.51
With a diesel particulate filter B 180 CDI B 200 CDI
MB Sheet Number
228.51/229.31/229.51 228.51/229.31/229.51
Without a diesel particle filter
46 B 180 CDI B 200 CDI
MB Sheet Number
228.3/228.5/228.51
229.3/229.31/229.5/229.51 228.3/228.5/228.51
229.3/229.31/229.5/229.51 46
Only for certain countries. Technical data
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