fuel filter MERCEDES-BENZ CLS 2012 Owners Manual

If engine running problems are apparent,
have the cause checked immediately and
repaired. Excess unburned fuel can
otherwise enter the catalytic converter,
leading to overheating and possibly
causing a fire.
! Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
i Only refuel with premium-grade unleaded
gasoline with a specified minimum octane
number of 91 (average value of 96 RON/
86 MON).
Usually, you will find information about the
fuel grade on the pump. If you cannot find
the label on the gasoline pump, ask the gas
station staff.
You can find more information under “Fuel”
( Y page 347), or by contacting an
authorized Mercedes-Benz Service Center
or visiting http://www.mbusa.com (USA
only).
Refueling
Fuel filler flap
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey or using KEYLESS-
GO.
The position of the fuel filler cap is displayed
in the instrument cluster 8. The arrow
next to the filling pump indicates the side of
the vehicle.
:To open the fuel filler flap;To insert the fuel filler cap=Tire pressure table?Fuel type
Opening
XSwitch off the engine.XRemove the SmartKey from the ignition
lock.
KEYLESS-GO: open the driver’s door. This
switches the ignition to position 0, which
corresponds to having removed the
SmartKey. The driver’s door can be closed
again.XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.XOpen the fuel filler flap.XTurn the fuel filler cap counter-clockwise
and remove it.XInsert the fuel filler cap into the holder
bracket on the inside of filler flap ;.XCompletely insert the pump nozzle into the
filler neck and refuel.XOnly fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damage the
fuel system.
148RefuelingDriving and parking

CapacitiesVehicle modelCapacityFuel, coolant,
lubricants etc.Engine oil and
filterCLS 63 AMG
CLS 550 4MATIC 308.5 US qt (8.0 l)Approved engine
oilsCLS 550 309.0 US qt (8.5 l)Cooling systemAll models except
AMG vehicles13.4 US qt (12.7 l)MB 326.0 corrosion
inhibitor/antifreeze
agentCLS 63 AMGWithout auxiliary radiator:
13.6 US qt (12.9 l)With auxiliary radiator:
14.8 US qt (14.0 l)Tank capacityAll models21.1 US gal (80 l)Premium-grade
unleaded gasoline
(at least 91 octane,
average value
between 96 RON/
86 MON)ReserveAll models except
AMG vehicles2.4 US gal (9 l)CLS 63 AMG3.7 US gal (14 l)Air-
conditioning
systemAll models—Refrigerant R134a
and special PAG
lubricant (never
R 12)Windshield/
headlamp
cleaning
systemAll models6.3 US qt (6.0 l)MB windshield
washer
concentrate 31
( Y page 351)
Mixing ratio for
washer fluid
( Y page 351)Fuel
Important safety notesGWARNING
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flames or smoking
materials near gasoline.
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact.30 BlueEFFICIENCY
31 Mixed with water or premixed washer fluid with antifreeze protection.Service products and capacities347Technical dataZ

Do not mix other fuel additives with fuel. This
causes unnecessary costs and could damage
the engine.
! Do not refuel with low-grade fuel and do
not use fuel additives that are not tested
and approved for Mercedes-Benz vehicles.
Damage to or malfunctions of the fuel
system may otherwise occur.
Engine oil
Please bear the following in mind
The engine oils are matched to the
performance of Mercedes-Benz engines and
service intervals. You should therefore only
use engine oils and oil filters that are
approved for vehicles with maintenance
systems.
For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz Center
or go to the Internet site
http://www.mbusa.com (USA only).
! Never use engine oil or an oil filter of a
specification other than is necessary to
fulfill the prescribed service intervals. Do
not change the engine oil or oil filter in
order to achieve longer replacement
intervals than those prescribed. You could
otherwise cause engine damage or damage
to the exhaust gas aftertreatment.
Follow the instructions in the service
interval display regarding the oil change.
Otherwise, you may damage the engine and
the exhaust gas aftertreatment.
The table shows which engine oils have been
approved for your vehicle.
ModelEngine
modelMB
ApprovalCLS 550 32
CLS 550 4MATIC 32278229.5CLS 63 AMG157229.533
i
MB Approval is indicated on the oil
containers.
Additives
! Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity
Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Select an engine oil with an SAE (viscosity)
classification suitable for the prevailing
outside temperatures. The following table
shows the correct SAE classification to be
used. The low-temperature characteristics of
engine oils can deteriorate significantly, e.g.
as a result of aging, soot and fuel deposits. It
is therefore strongly recommended that you
carry out regular oil changes using an
approved engine oil with the appropriate SAE
classification.
32 BlueEFFICIENCY.
33 Restriction: only SAE 0W-40 or SAE 5W-40 engine oils may be used.Service products and capacities349Technical dataZ