low oil pressure MERCEDES-BENZ SL500 2005 R230 Owner's Manual

139 Controls in detail
Control system
Standard display menu
You can select the functions in the stan-
dard display menu with button k or
j.
The following functions are available:
Display digital speedometer
Press button j once.
The current vehicle speed is shown in
the right 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
right display.
The following functions are available:
iThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays.
The first function displayed in each
menu will automatically show you
which part of the system you are in.
Function
Page
Calling up digital speedometer
139
Calling up maintenance service
indicator
313
Checking tire inflation pressure
290
Checking engine oil level
272
Function
Page
Selecting radio station
140
Selecting satellite radio
station* (USA only)
140
Operating CD player
141

269 Operation
At the gas station
Check regularly and before a long trip
For information on quantities and require-
ments of operating agents, see “Fuels,
coolants, lubricants, etc.” (
page 431).

Open the hood (
page 270).
1Windshield washer and headlamp
cleaning system
2Brake fluid
3Coolant levelWindshield washer and headlamp
cleaning system
For information on refilling the reservoir,
see “Windshield washer system and
headlamp cleaning system” (
page 278).
Brake fluid
For information on brake fluid, see “Fuels,
coolants, lubricants, etc.” (
page 431).Coolant level
For information on checking the coolant
level, see “Coolant” (
page 276).
Engine oil level
For more information on checking the en-
gine oil level, see “Checking engine oil lev-
el with the control system” (
page 272).
Vehicle lighting
Check function and cleanliness. For more
information, see “Replacing bulbs”
(
page 380).
Exterior lamp switch see “Switching on
headlamps” (
page 51).
Tire inflation pressure
For information on checking the tire infla-
tion pressure, see “Checking tire inflation
pressure” (
page 290).
!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. Noti-
fy an authorized Mercedes-Benz Center
immediately. Do not add brake fluid as
this will not solve the problem. For
more information, see the “Practical
hints” section (
page 349).

434 Technical dataFuels, coolants, lubricants, etc.Premium unleaded gasoline
Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pu mp ) m ust b e 91 m i n. It is an a ve ra ge
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M) / 2). This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains
10% ethanol and 90% unleaded gasoline,
can be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
is not available and low octane fuel is
used, follow these precautions:

have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible


avoid full throttle driving and abrupt
acceleration


do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage


do not exceed
2/3 of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain

448 IndexCenter air vents 29
Center console
Lower part 30
Upper part 29
Centigrade
Setting temperature units 148
Central locking
Automatic 110
Central locking switch 111
Switching on/off (control
system) 156
Unlocking from inside 111
Central locking switch 29
Central unlocking switch 29
Changing
Batteries (SmartKey with
KEYLESS-GO*) 378
Batteries (SmartKey) 377
SmartKey setting 96
SmartKey with KEYLESS-GO*
settings 103
Vehicle level 222Charging
Vehicle batteries 404
CHECK ENGINE
Messages in display 351
CHECK ENGINE malfunction indicator
lamp 27, 327, 328
Checking
Coolant level 276
Oil level 269, 272
Tire inflate pressure 269
Vehicle lighting 269
Child safety
Airbags 64
Automatic child seat recognition 76
Infant and child restraint systems 62
Cigarette lighter 29, 233
Cleaning
Cup holder 320
Gear selector lever 320
Hard plastic trim items 320
Headlamps 178Headliner 320
Leather upholstery 321
Plastic and rubber parts 321
Seat belts 320
Steering wheel 320
Upholstery 321
Windshield 53
Wood trims 321
Cleaning tires 281
Clock 23
Closing
Hood 271
Power window with
KEYLESS-GO* 195
Retractable hardtop (SmartKey) 201
Retractable hardtop (switch) 198
Side windows 194, 195
Sunshade 204
Trunk lid 109
Windows 193
Windows with KEYLESS-GO* 195