2010 MERCEDES-BENZ SLK300 brake

Display messages
Possible causes/consequences and
X SolutionsESP ESP
Unavailabl
e See
Operator’s
Manual The brake system still functions normally but due to
insufficient power supply the ESP
®
is unavailable.
The BAS may not be operational.
X Continue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.
When the voltage is above the required value again, the
ESP ®
is operational again and the message in the
multifunction display should disappear.
If the message in the multifunction display does not
disappear:
X Have the alternator and the battery checked.
X Have the system checked at an authorized Mercedes-Benz
Center as soon as possible. ESP ESP
Unavailabl
e See
Operator’s
Manual
The ESP
®
is temporarily not available.
The self-diagnosis may not be completed yet.
The BAS may not be operational.
The
brake system is still functioning normally but without the
systems specified above available.
X Drive a short distance with added caution at a vehicle speed
of above 12 mph (20 km/h).
When

the message disappears, the ESP ®
is available again.
If the message does not disappear:
X Continue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.
X Have the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident. 238
Vehicle status messages in the multifunction display
Practical hints
171_AKB; 3; 60, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 238

Display messages
Possible causes/consequences and
X SolutionsFront-
passenger
Airbag
Enabled
See
Operator’s
Manual The passenger front air bag and the passenger-side knee bag
are activated while driving even though a child, small
individual, or object below the system’s weight threshold is
on the passenger seat, or the passenger seat is empty.
Objects on the seat or forces acting on the seat may make
the system sense supplemental weight.
X
Stop the vehicle in a safe location as soon as possible.
X Engage the parking brake.
X Switch off the ignition.
X Open the passenger door.
X Remove child and child restraint from passenger seat.
X Make sure no objects which apply supplemental weight to
the seat are present. The system may recognize such
supplemental weight and sense that an occupant on the
passenger
seat is of a greater weight than actually present.
X Keep the seat unoccupied, close the passenger door and
switch on the ignition.
Monitor the 04 indicator lamp in the center
console (Y page 39) and the multifunction display in the
instrument cluster

(Y page 26) for the following:
With the seat unoccupied and the ignition switched on,
R the 04 indicator lamp in the center console
should illuminate and remain illuminated, indicating that
the OCS (Y page 37) has deactivated the passenger front
air bag and the passenger-side knee bag.
R the message Front-passenger Airbag Enabled See
Operator’s Manual or the message Front-passenger
Airbag Disabled See Operator’s Manual should not
appear in the multifunction display at any time the seat is
unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the passenger
seat again. Depending on the passenger classification sensed
by the OCS, the 04 indicator lamp will remain
illuminated or go out.
If above conditions are not met, the system is not working
properly. Have the system checked at an authorized
Mercedes-Benz Center as soon as possible. Vehicle status messages in the multifunction display
239
Practical hints
171_AKB; 3; 60, en-US
d2ureepe,Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 239 Z

G
Warning!
If the 04 indicator lamp remains out even after performing the above corrective
steps, do not have any children 12 years old and under and other small individuals use the
passenger seat until the system has been repaired. Display messages
Possible causes/consequences and
X SolutionsFront-
passenger
Airbag
Disabled
See
Operator’s
Manual The passenger front air bag and the passenger-side knee bag
are deactivated while driving even though an adult or
someone larger than a small individual is occupying the
passenger seat. Forces acting on the seat may make the
system sense a decrease in weight.
X
Stop the vehicle in a safe location as soon as possible.
X Engage the parking brake.
X Switch off the ignition.
X Have the passenger vacate the seat and exit the vehicle.
X Keep the seat unoccupied, close the passenger door and
switch on the ignition.
Monitor the 04 indicator lamp in the center
console (Y page 39) and the multifunction display in the
instrument cluster
(Y page 26) for the following:
With the seat unoccupied and the ignition switched on,
R the 04 indicator lamp in the center console
should illuminate and remain illuminated, indicating that
the OCS (Y page 37) has deactivated the passenger front
air bag and the passenger-side knee bag.
R the message Front-passenger Airbag Enabled See
Operator’s Manual or the message Front-passenger
Airbag Disabled See Operator’s Manual should not
appear in the multifunction display at any time the seat is
unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the passenger
seat again. Depending on the passenger classification sensed
by the OCS, the 04 indicator lamp will remain
illuminated or go out.
If above conditions are not met, the system is not working
properly. Have the system checked at an authorized
Mercedes-Benz Center as soon as possible. 240
Vehicle status messages in the multifunction displayPractical hints
171_AKB; 3; 60, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 240

Display messages
Possible causes/consequences and
X SolutionsCaution
Tire
Defect At least one tire is deflating.
The respective tire is indicated in the multifunction display.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X If necessary, change the wheel (Y page 273). Check
Tires The tire inflation pressure in at least one tire is significantly
below the reference value.
The respective tire is indicated in the multifunction display.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X Check and adjust tire inflation pressure as required.
X If necessary, change the wheel (Y page 273). G
Warning!
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may
lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up
and possibly a fire. G
Warning!
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect
handling and fuel economy, and are more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear
unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are
more likely to become punctured or damaged by road debris, potholes etc. Symbol messages
Brake Display messages
Possible causes/consequences and
X Solutions# Brake Wear The brake pads have reached their wear limit.
X
Have the brake pads replaced as soon as possible at an
authorized Mercedes-Benz Center. !
Brake pad thickness must be visually inspected by a qualified technician at the intervals
specified in the Maintenance Booklet. Vehicle status messages in the multifunction display
243
Practical hints
171_AKB; 3; 60, en-US
d2ureepe,Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 243 Z

Display messages
Possible causes/consequences and
X Solutions$
(USA only)
!
(Canada
only) Release
Parking
Brake You are driving with the parking brake engaged. In addition
an acoustic warning sounds.
X
Release the parking brake. $
(USA only)
J
(Canada
only) Check
Brake
Fluid
Level There is insufficient brake fluid in the reservoir.
Risk of accident!
X
Stop the vehicle in a safe location or as soon as it is safe
to do so.
X Engage the parking brake.
X Do not drive any further.
X Contact an authorized Mercedes-Benz Center or call
Roadside Assistance.
Do not add brake fluid! This will not solve the problem. G
Warning!
Driving with the message Check Brake Fluid Level displayed can result in an accident. Have
your brake system checked immediately.
Do not add brake fluid before checking the brake system. Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be
seriously burned.
! 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. 244
Vehicle status messages in the multifunction display
Practical hints
171_AKB; 3; 60, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 244

!
Do not ignore the low engine coolant level warning. Extended driving with the message
and
symbol displayed may cause serious engine damage not covered by the Mercedes-Benz
Limited Warranty.
Do not drive without sufficient amount of coolant in the cooling system. The engine will
overheat causing major engine damage. Display messages
Possible causes/consequences and
X Solutions? Coolant
Stop,
turn
engine
off. The coolant is too hot.
X
Stop the vehicle immediately as soon as it is safe to do so.
X Turn off the engine immediately.
X Engage the parking brake.
X Only start the engine again after the message disappears.
You could otherwise damage the engine.
X Observe the coolant temperature in the multifunction
display.
X If the temperature rises again: Contact an authorized
Mercedes-Benz Center immediately.
During severe operation conditions and stop-and-go city
traffic, the coolant temperature may rise close to 248‡
(120†). 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.
! The engine should not be operated with the coolant temperature above 248‡ (120†).
Doing so may cause serious damage which is not covered by the Mercedes-Benz Limited
Warranty. 248
Vehicle status messages in the multifunction display
Practical hints
171_AKB; 3; 60, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 248

Display messages
Possible causes/consequences and
X Solutions4 Cannot
Measure
Engine
Oil Level SLK 55 AMG only:
The measuring system is malfunctioning.
X
Have the measuring system checked at an authorized
Mercedes-Benz Center. 4 Engine
Oil Level
Reduce
Oil Level SLK 55 AMG only:
You have added too much engine oil. There is a risk of
damaging the engine or the catalytic converter.
X
Have oil siphoned or drained off. Observe all legal
requirements with respect to its disposal. 4 Engine
Oil Level
Stop,
turn
engine
off. The engine oil level is too low. There is a danger of engine
damage.
X
Stop the vehicle in a safe location or as soon as it is safe
to do so.
X Turn off the engine.
X Engage the parking brake.
X Add engine oil ( Y page 195) and check the engine oil level
(Y page 193). C The fuel level is low.
X
Refuel at the next gas station. 8 Reserve
Fuel The fuel level has dropped below the reserve mark.
X
Refuel at the next gas station. 8 Gas Cap
Is Open A loss of pressure has been detected in the fuel system. The
fuel cap may not be closed properly or the fuel system may
be leaking.
X
Check the fuel cap ( Y page 191).
X If it is not closed properly: Close the fuel cap.
X If it is closed properly: Have the fuel system checked at
an authorized Mercedes-Benz Center. Vehicle status messages in the multifunction display
251Practical hints
171_AKB; 3; 60, en-US
d2ureepe,Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 251 Z

Lamps
Display messages
Possible causes/consequences and
X Solutionsb Reverse
Lamp Left
or
Reverse
Lamp Right The left or right backup lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Brake-/
Tail Lamp
Left
or
Brake-/
Tail Lamp
Right The left or right brake lamp is malfunctioning. This message
will only appear if all LEDs have stopped working.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b 3rd Brake
Lamp The high-mounted brake lamp is malfunctioning. This
message will only appear if all LEDs have stopped working.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Front
Foglamp
Left
or
Front
Foglamp
Right The left or right front fog lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Marker
Lamp
Front Left
or
Marker
Lamp
Front
Right The front left side or right side marker lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Marker
Lamp Rear
Left
or
Marker
Lamp Rear
Right The rear left side or right side marker lamp is malfunctioning.
This message will only appear if all LEDs have stopped
working.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. 252
Vehicle status messages in the multifunction displayPractical hints
171_AKB; 3; 60, en-US
d2ureepe,
Version: 2.11.8.1 2009-05-11T16:00:23+02:00 - Seite 252