2006 MERCEDES-BENZ CLS500 check engine

151 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Standard display
AUDIO
NAV*
Distronic*
Vehicle status mes-
sage memory
1
1The vehicle status message memory menu is only displayed if there is a message stored.(page 153)
(page 153)
(page 155)
(page 155)
(page 156)
Commands/submenusDigital speedometer
Select radio station
Show route guidance
instructions, current
direction traveled
Call up settings
Call up vehicle malfunc-
tion, warning and system
status messages stored
in memory
Call up maintenance
system display
Select satellite radio
station*
Checking tire inflation
pressure
Operate CD player
Check engine oil level

153 Controls in detail
Control system
Standard display menu
Press buttonk orj repeatedly
to select the functions in the standard
display menu.
The following functions are available:
Display digital speedometer

Press buttonk orj repeatedly
until the digital speedometer appears
in the multifunction display.
AUDIO menu
The functions in the
Audio
menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
AUDIO off
is shown in the
multifunction display.
The following functions are available:Select radio station

Turn on COMAND and select radio.
Refer to separate COMAND operating
instructions.

Press buttonè orÿ repeatedly
until you see the currently tuned sta-
tion in the multifunction display.
1Waveband setting
2Station frequency

Press buttonk orj repeatedly
until the desired station is found.
Function
Page
Call up digital speedometer
153
Call up maintenance display
339
Checking tire inflation pressure
313
Check engine oil level
295
Function
Page
Select radio station
153
Select satellite radio station*
154
Operate CD player
154

190 Controls in detailAutomatic transmissionDownshifting
Briefly press the gear selector lever to
the left in theD-direction.
or

Briefly press button2 on the left side
of the steering wheel (
page 186).
The transmission shifts to the next
lower gear.Kickdown
Using the kickdown when driving in the
manual program modeM is not possible.
Deactivating manual shift program

Press the program mode selector
switch (
page 188) repeatedly until
Cor
S appears in the multifunction
display.
or

Restart the engine.
The transmission will go to the
automatic program mode (C orS).
The manual program modeM is not
stored.Emergency operation
(Limp-Home Mode)
If vehicle acceleration becomes less re-
sponsive or sluggish or the transmission
no longer shifts, the transmission is most
likely operating in limp-home (emergency
operation) mode. In this mode only second
gear and reverse gear can be selected.
Stop the vehicle.

Move gear selector lever toP.

Turn off the engine.

Wait at least 10 seconds before
restarting.

Restart the engine.

Move gear selector lever to positionD
(for second gear) orR.

Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.
iWhen you brake or stop, the transmis-
sion shifts down to a gear from which
you can easily accelerate or take off.

209 Controls in detail
4-zone automatic climate control
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.

Press button2 (
page 198) or
(
page 199).
The indicator lamp on the button goes
out. The cooling function switches off
after a short delay.
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

Press button2 (
page 198) or
(
page 199) again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Residual heat and ventilation
(Canada only)
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.Warning!
G
If you turn off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.
!If the air conditioning cannot be turned
on again, this indicates that the air con-
ditioning is losing refrigerant. The com-
pressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.iIf you switch on the residual heat
function when temperatures are high,
only the ventilation will be switched on.

260 Controls in detailUseful featuresFloormats
1Retainer pins
2EyeletsRemoving

Pull floormats off of retainer pins1.

Remove the floormats.
Installing

Lay down the floormat.

Press the floormat eyelets2 onto re-
tainer pins1.
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.
iAn additional power outlet is located on
the left side in the trunk.iTo install or remove the floormat more
easily, move the driver’s seat or front
passenger seat as far to the rear as
possible (
page 40).
Warning!
G
Whenever you are using floormats, make
sure there is enough clearance and that the
floormats are securely fastened.
Floormats should always be securely fas-
tened using eyelets2 and retainer pins1.
Before driving off, check that the floormats
are securely in place and adjust them if nec-
essary. A loose floormat could slip and
hinder proper functioning of the pedals.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious
personal injury.

281 Operation
Driving instructions
To help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.
Refer to the description of the Brake Assist
System (BAS) (
page 86).If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on, there is a malfunction in the
electro-hydraulic brake system
(
page 89) or the brake fluid level in the
reservoir is too low.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the res-
ervoir.
Have the brake system inspected by quali-
fied technicians immediately. Contact an
authorized Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and brake fluid
recommended by Mercedes-Benz.
After hard braking, it is advisable to drive
on for some time, rather than immediately
park, so that the air stream will cool down
the brakes faster.
Warning!
G
Make sure not to endanger any other road
users when carrying out these braking ma-
neuvers.
Warning!
G
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired. This
could result in an accident.
Be certain to read and observe the warning
notices on brake pad replacement
(page 374).!When driving down long and steep
grades, relieve the load on the brakes
by shifting into a lower gear to use the
engine’s braking power. This helps pre-
vent overheating of the brakes and
reduces brake pad wear.

291 Operation
At the gas station

Replace fuel cap by turning it clockwise
until it audibly engages.

Close the fuel filler flap.
Check regularly and before a long trip
1Windshield washer and headlamp
cleaning system*
For more information on refilling the
reservoir, see “Windshield washer sys-
tem and headlamp cleaning system*”
(
page 300).
2Brake fluid
For more information on brake fluid,
see “Brake fluid” (
page 464).
3Coolant level
For more information on the coolant
level, see “Coolant level” (
page 297).
Warning!
G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas-
oline fuel discharge. This could cause the
gasoline fuel to spray back out when remov-
ing the fuel pump nozzle, which could cause
personal injury.iLeaving the engine running and the fuel
cap open can cause the yellow fuel
tank reserve warning lamp to flash and
the úmalfunction indicator lamp
(USA only) or the ±malfunction
indicator lamp (Canada only) to illumi-
nate.
See also “Practical hints” section
(page 355).
iOnly use premium unleaded gasoline
with a minimum Posted Octane Rating
of 91 (average of 96 RON/86 MON).
Information on gasoline quality can
normally be found on the fuel pump.
For more information on gasoline, see
the Factory Approved Service Products
pamphlet.

292 OperationAt the gas station
Engine oil level
For more information on engine oil level,
see “Engine oil” (
page 294).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
the “Practical hints” section (
page 411).
For more information, see “Exterior lamp
switch” (
page 134).Tire inflation pressure
For more information, see “Checking tire
inflation pressure” (
page 313).
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately.
Notify an authorized Mercedes-Benz
Center immediately. Do not add brake
fluid as this will not solve the problem.
For more information, see “Practical
hints” (
page 354).