2012 MERCEDES-BENZ SLK350 engine coolant

X
Press the 0002or0005 button on the
steering wheel to select the Sett. menu.
X Press the 0004or0003 button to select the
Convenience submenu.
X Press 000Cto confirm.
X Press the 0004or0003 button to select the
Belt Adjustment function.
You will see the selected setting: on or
off .
X Press the 000Cbutton to save the setting.
Switching the fold-in mirrors when
locking feature is on/off
If you switch on the Fold Mirrors in when
Locking function, the exterior mirrors fold in
when you lock the vehicle. If you unlock the
vehicle and then open a door, the exterior
mirrors fold out again.
If you have switched the function on and you
fold the exterior mirrors in using the button
on the door (Y page 99), they will not fold out
automatically. The exterior mirrors can then
only be folded out using the button on the
door.
X Press the 0002or0005 button on the
steering wheel to select the Settingsmenu.
X Press the 0004or0003 button to select the
Convenience submenu.
X Press the 000Cbutton to confirm.
X Press the 0004or0003 button to select the
Fold mirrors in when locking: function.
You will see the selected setting:
Enabledor
Disabled .
X Press the 000Cbutton to save the setting.
Restoring the factory settings For safety reasons, the
Daytime RunningLights: function in the
Lights submenu is
only reset when the vehicle is stationary. X
Press the 0002or0005 button on the
steering wheel to select the Sett. menu.
X Press the 0004or0003 button to select the
Factory Setting submenu.
X Press the 000Cbutton to confirm.
The Reset All Settings? message
appears.
X Press the 0004or0003 button to select
No or
Yes .
X Press the 000Cbutton to confirm the
selection.
If you select Yes , the multifunction display
shows a confirmation message. AMG menu in AMG vehicles
AMG displays X
Press the 0002or0005 button on the
steering wheel to select the AMG menu.
0002
Digital speedometer
0003 Gear indicator
0023 Upshift indicator
0022 Engine oil temperature
0020 Coolant temperature
0021 Status display of the ECO start/stop
function (Y page 135)
Upshift indicator UP 0023
indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator UP 0023
fades out other
messages until you have shifted up. Menus and submenus
195On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
0001
Malfunction See
Operator's Manual The exterio
rlighting is defective.
X Visit a qualified specialist workshop. 0001
AUTO
Lamp Function
Inoperative The light sensor is defective.
X
Visit a qualified specialist workshop. 0001
Switch Off Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to 0008or0005. Engine
Displa
ymessages Possible causes/consequences and
0001 Solutions
000D
Check Coolant
Level See
Operator's Manual The coolant level is too low.
X
Add coolant, observing the warning notes when doing so
(Y page 262).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. G
WARNING
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contac twith hot engine parts. You could be seriously burned.
! The coolan tlevel is too low. Avoid making long journeys with too little coolant in the cooling
system. The engine will otherwise be damaged.
The display messages and the corresponding symbol that indicate that the coolant level is
too low must not be ignored. 216
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
0001 Solutions
000C The engine fan is defective.
X
At coolant temperatures under 248 ‡(120 †), drive to th enext
qualified specialist workshop.
X Avoid subjecting the engin eto heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. 000C
Coolant Stop car,
switch engine off The coolant is too hot.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Wait until the display message disappears before restarting the
engine. Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately. G
WARNING
Driving when your engine is overheated can cause some fluids which may have leaked into the
engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the
engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until the engine has cooled down.
! If the coolant temperature is over 248 ‡(120 †), do not continue driving. The engine will
otherwise be damaged. Display messages
217On-board computer and displays Z

Problem Possible causes/consequences and
0001 Solutions
000C
The red coolant
warning lamp lights up
while the engine is
running and the coolant
temperature gauge is
at the start of the scale.
The temperature sensor for the coolant temperature gauge is
defective.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Apply the electric parking brake.
X Consult a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
235On-board computer and displays Z

Problem Possible causes/consequences and
0001 Solutions
000C
The red coolant
warning lamp comes on
while the engine is
running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be
malfunctioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
X Check the coolant level and add coolant (Y page 262). Observe
the warning notes.
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures under 248 ‡(120 †), drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and start/stop traffic. 000C
The red coolant
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The
airflow to the engine radiator may be blocked or the coolant level
may be too low.
The engine is not being cooled sufficiently and may be damaged.
X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
X Check the coolant level and add coolant (Y page 262). Observe
the warning notes.
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures under 248 ‡(120 †), drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and start/stop traffic. 236
Warning and indicator lamps in the instrument clusterOn-board computer and displays

G
WARNING
Driving when youre ngine is overheated can cause som efluids which may have leaked into the
engine compartmen tto catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the
engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until the engine has cooled down.
! If the coolant temperature is over 248 ‡(120 †), do not continue driving. The engine will
otherwise be damaged. Driving systems
Problem Possible causes/consequences and
0001 Solutions
000C
The red distance
warning lamp lights up
while the vehicle is in
motion. A warning tone
also sounds.
G
Risk of accident
You are approaching a vehicle or a stationary obstacle in you rline
of travel at too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
More information about DISTRONIC PLUS (Y page 158) and
PRE-SAFE ®
Brake (Y page 62). Warning and indicator lamps in the instrument cluster
237On-board computer and displays Z

Adding engine oil
G
WARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself .Do not spill any engine oil on hot
engine parts. H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
! Only use engine oils and oil filters that
have been approved for vehicles with a
service system. You can obtain a list of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
center.
Damage to the engine or exhaust system is
caused by the following:
R using engine oils and oil filters that have
not been specifically approved for the
service system
R replacing engine oil and oil filters after
the interval for replacement specified by
the service system has been exceeded
R using engine oil additives.
! Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off. Example: engine oil cap
X
Turn cap 0002counterclockwise and remove
it.
X Add engine oil.
If the oil level is at or below the MIN mark
on the oil dipstick, add 0.55 US qt to
1.1 US qt (0.5 to 1.0 l)of engine oil.
X Replace cap 0002on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
X Check the oil level again with the oil
dipstick (Y page 261).
Further information on engine oil
(Y page 326). Checking and adding other service
products
Checking the coolant level G
WARNING
In order to avoid any potentially serious burns:
R use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
R do not remove the pressure cap on the
coolant reservoir if the coolant temperature
is above 158 ‡(70 †). Allow the engine to
cool dow nbefore removing the cap. The
coolant reservoir contains hot fluid and is
under pressure. 262
Engine compartmentMaintenance and care

R
using a rag, slowly tur nthe cap
approximately 1
/ 2 turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
R do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. X
Park the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
X Turn the SmartKey to position 2in the
ignition lock (Y page 131).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 131).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Turn the SmartKey to position
0(Y page 131) in the ignition lock.
X Slowly turn cap 0003half a turn counter-
clockwise to allow excess pressure to
escape.
X Turn cap 0003further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
0023 in the filler neck when cold, there is
enough coolant in coolant expansion
tank 0002.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar 0023in the filler neck when warm, there is enough coolant
in coolant expansion tank
0002.
X If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X Replace cap 0003and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 327).
Adding washer fluid to the windshield
washer system/headlam pcleaning
system G
WARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engin eparts, because it may
ignite and burn .You could be seriously
burned. X
To open: pull cap0002upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap 0002onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
Further information on windshield washer
fluid/antifreeze (Y page 328).
Brake fluid level !
If the brake fluid level in the brake fluid
reservoir has fallen to the MIN mark or
below, check the brake system Engine compartment
263Maintenance and care Z