Page 639 of 769
638 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Tire Pressures
Displayed After Driving
a Few Minutes
The tire inflation pressure is being
checked.
Drive the vehicle for a few minutes.
Service Required
Do Not Shift Gears
The automatic transmission cannot be
shifted out of the set position because of a
malfunction.
If the automatic transmission is shift to drive positionD
(page 417):
Without changing the automatic transmission from drive
positionD, drive to an authorized Mercedes-Benz Center.
If the automatic transmission is shift to neutral positionN, re-
verse gear R or park positionP:
Do not drive.
Consult an authorized Mercedes-Benz Center.
Page 651 of 769

650 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking Brake
See Oper. Manual
If overheated:
Let vehicle cool down, and do not engage
electronic parking brake during this time.
or
Switch ignition off and back on again, and en-
gage or release electronic parking brake.
(USA only)(Canada only)
Parking Brake
Inoperative
When you engage or release the electronic
parking brake, the red indicator lamp for
the electronic parking brake flashes and
goes out after approx. 10 seconds. The yel-
low warning lamp for the electronic parking
brake comes on.
The electronic parking brake is
malfunctioning.
Switch ignition off and back on again, and en-
gage electronic parking brake (
page 412).
If the electronic parking brake cannot be en-
gaged:
Shift the automatic transmission to park
positionP (
page 417).
Protect vehicle from rolling away while
parked by using a chock from the vehicle tool
kit (
page 683).
Contact an authorized Mercedes-Benz
Center as soon as possible.
Page 670 of 769
669 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Night View Assist
Inoperative
Night View Assist* is malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Night View Assist
Currently Unavailable
The temperature of the camera* is too high
(page 481).
Wait until the message “Night View Assist
Available Again” appears.
In addition you can:
Swing the camera* cover down
(page 602).
Adjust the air distribution of the automatic
climate control so that air flows upward
(page 271).
Night View Assist
Lights Must Be Set
to AUTO or ON
You have tried to switch on Night View
Assist*, but the light switch is not set
to* or B.
Turn the exterior lamp switch
to*orB (
page 391).
Night View Assist
Not in Reverse Gear
You have tried to switch on Night View
Assist* while the automatic transmission
was in reverse gearR.
Shift the automatic transmission to park po-
sition P, neutral positionN or drive
positionD (
page 417).
Page 671 of 769
670 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Night View Assist
Lights ON or AUTO,
Not in R Gear
You have tried to switch on Night View
Assist* but the light switch is not set
to*or B.
In addition, the automatic transmission is in
reverse gearR.
Turn the exterior lamp switch
to*orB (
page 391).
Shift the automatic transmission to park po-
sition P, neutral positionN or drive
positionD (
page 417).
Night View Assist
Only When
It Is Dark
You have tried to switch on Night View
Assist* by daylight.
You can only switch on Night View Assist* when
it is dark.
Engine Oil Level Low
Stop Vehicle
Turn Engine Off
CL 600 and CL 65 AMG only:
There is no oil in the engine. There is a dan-
ger of engine damage.
Carefully bring the vehicle to a halt as soon
as it is safe to do so in a safe location.
Engage the electronic parking brake
(page 412).
Turn off the engine.
Add engine oil (
page 557) and check the
engine oil level (page 554).
Page 681 of 769

680 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Shift to P
You have attempted to turn off the engine
with the KEYLESS-GO* start/stop button
and opened the driver’s door with the auto-
matic transmission not shift to park
positionP.
Shift the automatic transmission to park
positionP (
page 417).
or
Close the driver’s door.
You are driving with the trunk open.
Close the trunk (
page 501).
Check
Washer Fluid
The water level has dropped to approx.
1.1 US qts (1.0 l).
Add washer fluid (
page 560).
Lock Seat Backrest
Front Left
The driver seat backrest is not engaged.
The driver’s seat belt can not secure the
driver.
Fold back and push the seat backrest until
the seat cushion and seat backrest audibly
engage into the driving position.
Lock Seat Backrest
Front Right
The passenger seat backrest is not en-
gaged.
The front passenger’s seat belt can not se-
cure the passenger.
Fold back and push the seat backrest until
the seat cushion and seat backrest audibly
engage into the driving position.
Page 697 of 769

696 Practical hintsFlat tirePreparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.
Turn on the hazard warning flasher
(page 397).
Turn the steering wheel so that the
front wheels are in a straight ahead
position.
Shift the automatic transmission to
park positionP.
Engage the electronic parking brake.
Turn off the engine.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Vehicles with SmartKey: Remove the
SmartKey from the starter switch.
Vehicles with KEYLESS-GO*: Open the
driver’s door (this puts the starter
switch in position0, same as with the
SmartKey removed from the starter
switch). The driver’s door then can be
closed again.
Remove the KEYLESS-GO*
start/stop button from the starter
switch.
Mounting the spare wheel
i
Open the door only when conditions are safe
to do so.
Warning!
G
The dimensions of the spare wheel are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style accord-
ingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
ensure proper tire inflation pressure and
do not exceed a vehicle speed
of 50 mph (80 km/h).
Contact the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
replaced with a regular road wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® when a spare
wheel is mounted.
Page 705 of 769

704 Practical hintsBatteries
Starter battery (example illustration from
CL 550)1Negative terminal
2Positive terminal
Disconnecting starter battery
Secure vehicle in place with electronic
parking brake (
page 412).
Shift the automatic transmission to
park positionP (
page 417).
Do not rub the battery with rags or cloths.
The battery could explode if touched due to
electrostatic charge or due to spark forma-
tion.!
Switch off the engine and switch off the ve-
hicle’s internal electrical functions (
page 705)
before you disconnect or remove the battery’s
terminal clamps. You could otherwise destroy
electronic assemblies such as the generator.
Have the battery checked regularly by an autho-
rized Mercedes-Benz Center. Refer to Mainte-
nance Booklet for maintenance intervals or
contact an authorized Mercedes-Benz Center for
further information.
!
Do not connect any consumers directly to
the starter battery. The starter battery will other-
wise be discharged.
i
Only replace a discharged battery with a bat-
tery recommended by Mercedes-Benz. The con-
sumer battery is installed in the trunk in such a
way that it is safeguarded as much as possible
against mechanical destruction in the event of
an accident.
i
Remove SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the vehicle’s
on-board electronics have status 0)
(
page 365) when you turn off the engine and
no longer require any electrical consumers. The
vehicle then uses very little power and the con-
sumer battery is spared.
i
If the consumer battery is discharged, you
must use the mechanical key to unlock the vehi-
cle (page 684). Since the vehicle has a sepa-
rate starter battery, however, you can still start
the vehicle.
!
Always disconnect the starter battery in the
order described below. You could otherwise
damage the vehicle’s electronics.
!
Switch off the vehicle’s internal electrical
functions before disconnecting the starter bat-
tery. If the vehicle is stationary for more than one
hour with the SmartKey removed, you do not
need to switch off the vehicle’s internal electrical
functions.
Page 709 of 769
708 Practical hintsJump startingJump starting should only be performed on
the starter battery. The starter battery is
located in the engine compartment on the
passenger side (
page 704).
Make sure the two vehicles do not
touch.
Secure vehicle in place with electronic
parking brake (
page 412).
Shift the automatic transmission to
park positionP (
page 417).
Turn off all electrical consumers, ex-
cept hazard warning flashers or work
lights.
Open the hood (
page 553).
Start the engine of the vehicle with the
charged battery and run at idle speed.1Negative clamp
2Negative terminal of charged battery
3Positive terminal of charged battery
4Positive terminal of discharged battery
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 702).
i
Vehicles with KEYLESS-GO: remove the
KEYLESS-GO button (
page 366) and use the
SmartKey with KEYLESS-GO like a normal
SmartKey.