cooling MERCEDES-BENZ C-CLASS SALOON 2011 User Guide

therefore strongly recommended to observe
regular oil changes using an approved engine
oil with the appropriate SAE classification. Brake fluid
G
WARNING
Ove raperiod of time, the brake fluid absorbs
moisture from the air; This lowers its boiling
point.
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 impairs braking effi-
ciency.
You should have the brake fluid renewed at
regular intervals. The brake fluid change inter-
vals can be found in the Service Booklet.
Only use brake fluid approved by Mercedes-
Benz. Information about approved brake flu-
ids can be obtained from any Mercedes-Benz
Service Centre or on the Internet at
http://bevo.mercedes-benz.com
i There is usually a notice in the engine
compartment to remind you when the next
brake fluid change is due. Coolant
Important safety notes 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 fil-
led with a coolant mixture that ensures
adequate antifreeze and corrosion protec-
tion.
! Only add coolant that has been premixed
with the desired antifreeze protection. The
engine could otherwise be damaged.
Further information on coolants and on fill-
ing can be found in the Mercedes-Benz
Specifications for Service Products, MB
Approval 310.1, e.g. on the Internet at
http://bevo.mercedes-benz.com .You can
also consult a Mercedes-Benz Service
Centre.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
If antifreeze/corrosion inhibitor is present in
the correc tconcentration, the boiling point of
the coolant during operation will be around
130 †.
The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should:
R be at least 50%. This will protec tthe engine
cooling system against freezing down to
around -37 †.
R not exceed 55% (antifreeze protection
down to -45 †); otherwise, heat will not be
dissipated as effectively.
If the vehicle has lost coolant, top it up with
equal amounts of water and antifreeze/cor- Service products and capacities
383Technical data Z

rosio
ninhibitor. Mercedes-Benz recom-
mends an antifreeze/corrosion inhibitor
which has been approved for Mercedes-Benz.
! The engine cooling system is filled with
coolant that must be renewed after 15
years, or after 250,000 km at the latest. Vehicle data
Please note tha tfor the specified vehicle
data:
R the heights specified may vary as a result
of:
-tyres
- load
- condition of the suspension
- optional equipment
R items of optional equipment increase the
unladen weight and reduce the maximum
payload. The unladen weight is specified in
accordance with EC directive and includes:
-driver (68 kg)
- luggage (7 kg)
- all fluids (fuel tank 90% full)
R vehicle-specific weight information can be
found on the vehicle identification plate
(Y page 379).
R only for certain countries: you can find vehi-
cle-specific vehicle data in the COC docu-
ments (CERTIFICATE OF CONFORMITY).
These documents are delivered with your
vehicle. All models
Vehicle length
(ECE), Saloon
4591 mm
Vehicle length
(ECE), Estate
4606 mm
Vehicle width
including exterior
mirrors
2008 mm All models
Vehicle width with-
out exterior mirrors
1770 mm
Wheelbase, except
for AMG vehicles
2760 mm
Maximum roof load
100 kg
Maximum boot load
100 kg
C 180 KOMPRESSOR BlueEFFI-
CIENCY
40 Manual transmission
Unladen weight,
Saloon
1480 kg
Unladen weight,
Estate
1530 kg
Automatic transmission
Unladen weight,
Saloon
1495 kg
Unladen weight,
Estate
1545 kg
C 180 BlueEFFICIENCY
Manual transmission
Unladen weight,
Saloon
1480 kg
Unladen weight,
Estate
1540 kg
Automatic transmission
Unladen weight,
Saloon
1495 kg
Unladen weight,
Estate
1555 kg
40
Only for certain countries. 384
Vehicle dataTechnical data

i
The values specified may differ from the
actual values, depending on the tyres, load,
optional equipment and the state of the
suspension. Trailer tow hitch
Mounting dimensions
G
WARNING
Only have a trailer tow hitch retrofitted 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 aMercedes-Benz
Service Centre for this purpose. In particular,
work relevant to safety or on safety-related
systems must be carried out at a qualified
specialist workshop.
! If you have a trailer tow hitch retrofitted,
changes to the cooling system may be nec-
essary, depending on the vehicle type.
If you have a trailer tow hitch retrofitted,
observe the anchorage point sonthe chas-
sis frame. Anchorage points for the trailer tow hitch (exam-
ple)
:
Anchorage points
; Overhang dimension
= Rear axle centre line
For trailer tow hitches fitted at the factory, the
overhang dimension including protective cov-
ering is 1154 mm (Saloon without the AMG
sports package) or 1182 mm (Estate and
Saloon with the AMG sports package). Trailer tow hitch
387Technical data Z