2008 MERCEDES-BENZ B-CLASS HATCHBACK light

Service products and capacities
297Coolant
The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It performs the
following tasks:
R anti-corrosion protection
R antifreeze protection
R raising the boiling point
i When the vehicle is first delivered, it is
topped up with a coolant that will ensure
adequate antifreeze and corrosion protec-
tion.
! Only top up with coolant that has been
premixed with the desired antifreeze pro-
tection. Otherwise, you could damage the
engine.
Further information on coolants and on fill-
ing can be found in the Mercedes-Benz Specifications for Service Products, sheet
310.1, or at any Mercedes-Benz Service
Centre.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the cooling system will not be
sufficiently protected from corrosion, and
the boiling point will be too low.
If antifreeze/corrosion inhibitor is present in
the correct concentration, the boiling point of
the coolant will be around 130 °C.
The antifreeze/corrosion inhibitor concentra-
tion in the cooling system should: R
be at least 50%. This will protect the cooling
system against freezing down to around –
37 °C.
R not exceed 55% concentration (antifreeze
protection down to –45 °C); otherwise,
heat will not be effectively dissipated.
If the vehicle has lost coolant, top it up with
equal amounts of water and antifreeze/cor-
rosion inhibitor. Mercedes-Benz recom-
mends an antifreeze/corrosion inhibitor
which has been approved for Mercedes-Benz.
! The cooling system contains a supply
which must be renewed after 15 years, or
after 250, 000 km at the latest.
The warranty is only valid if you top up with
an antifreeze/corrosion inhibitor which
has been approved by Mercedes-Benz and
the recommended mixture ratio is
observed. Technical data
245_AKB; 2; 7, en-GB
wdomann,
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Service products and capacities
298
Capacities The following values indicate the total cooling system capacities.
B 150
Manual trans- mission B 150
BlueEFFICIENCY B 150
AUTOTRONIC* B 170
Manual trans- mission B 170
BlueEFFICIENCY B 170
AUTOTRONIC* Coolant
6.3 l 6.3 l 6.5 l 6.3 l 6.3 l 6.6 l
Amount of antifreeze/corrosion inhibitor required for antifreeze protection
Down to
–37 †(approx.
50%)
3.2 l 3.2 l 3.25 l 3.2 l 3.2 l 3.0 l
Down to
–45 †(approx.
55%)
3.5 l 3.5 l 3.6 l 3.5 l 3.5 l 3.65 l
B 200 B 200
TURBO B 180 CDI B 200 CDI
Coolant
6.6 l 8.5 l 8.0 l 9.7 lTechnical data
* optional
245_AKB; 2; 7, en-GB
wdomann,
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Service products and capacities
299Amount of antifreeze/corrosion inhibitor required for antifreeze protection
Down to
–37 †(approx.
50%)
3.0 l 4.25 l 4.0 l 4.85 l
Down to
–45 †(approx.
55%) 3.65 l 4.7 l 4.4 l 5.35 l
Brake fluid
Over a period of time, the brake fluid absorbs
moisture from the air; this lowers its boiling
point. G
Risk of accident
If the boiling point of the brake fluid is too
low, vapour pockets may form in the brake
system when the brakes are applied hard
(e.g. when driving downhill). This would
impair braking efficiency.
Have the brake fluid renewed every two
years with a brake fluid that has been
approved by Mercedes-Benz and have this
confirmed in the Service Booklet. i
There is usually a notice in the engine
compartment to remind you when the next
brake fluid change is due. Windscreen washer system
G
Risk of fire
Windscreen washer concentrate is highly
flammable. Fire, naked flames and smoking
are prohibited when windscreen washer
concentrate is being handled.
The washer fluid reservoir holds approxi-
mately 6.4 litres.
The headlamp cleaning system* and the
windscreen washer system are both supplied
from the washer fluid reservoir. Further information on windshield washer
fluid and the mixing ratio can be found on
(Y
page 175). Technical data
* optional
245_AKB; 2; 7, en-GB
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300245_AKB; 2; 7, en-GB
wdomann ,V ersion: 2.11.4
2008-10-17T11:22:31+02:00 - Seite 300 Dateiname: 6515_1640_02_buchblock.pdf; preflight