2005 MERCEDES-BENZ SL55AMG automatic transmission

174 Controls in detailAutomatic transmissionSteering wheel gearshift control
SL 55 AMG and SL 65 AMG
The steering wheel gearshift buttons are
located to the left and right of the steering
wheel.
1Left button: downshift
2Right button: upshiftDownshifting

Press button1 on the left side of the
steering wheel.
The transmission will shift to the next
lower gear as permitted by the shift
program. This action simultaneously limits
the gear range of the transmission
(
page 167) when you are driving in the
automatic program mode (CorS).
iYou cannot shift with the steering
wheel gearshift buttons when the gear
selector lever is in positionP,N orR.
The MANUAL program mode will not
be stored. When the engine is turned
off with the MANUAL program mode
selected, the transmission will go to
the automatic program mode (CorS)
when the engine is restarted.
The last selected program
mode (CorS) is switched on when the
engine is restarted in the automatic
program mode.
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.

175 Controls in detail
Automatic transmission
Upshifting
Press button2 on the right side of the
steering wheel.
The transmission will shift to the next
higher gear as permitted by the shift
program. This action simultaneously
extends the gear range of the transmission
when you are driving in the automatic
program mode (CorS).Manual shift program SL 55 AMG and
SL 65 AMG
In the MANUAL program mode you can
change the gears manually on the steering
wheel (
page 174) or by using the gear
selector lever (
page 166).The program mode selector switch is
located on the lower part of the center
console.
1Program mode selector switch
MANUAL For manual gear shifting
C Comfort For comfort driving
S Sport For standard driving
The current gear selector lever position
and the selected program mode (
M/C/S)
are indicated in the right multifunction
display (
page 165).
!Allow engine to warm up under low
load use. Do not place full load on the
engine until the operating temperature
has been reached.
Shift into reverse gearR or parking
positionP only when the vehicle is
stopped.
Avoid spinning of a drive wheel for an
extended period when driving off on
slippery road surfaces. This may cause
serious damage to the drivetrain which
is not covered by the Mercedes-Benz
Limited Warranty.

176 Controls in detailAutomatic transmissionActivating manual shift program
Press program mode selector
switch1 repeatedly until the
M for
MANUAL program mode appears in
the right multifunction display.
The transmission switches to the
MANUAL program mode. Automatic
shifting is switched off. The gear range
is not limited.
You can change the gears manually when
the gear selector lever is in positionD. You
can upshift or downshift through the gears
in succession.Downshifting

Briefly press the gear selector lever to
the left in theD-direction
(page 166).
or

Press button1 on the left side of the
steering wheel (
page 174).
The transmission shifts to the next
lower gear.Upshifting
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.
!In the MANUAL program mode, the
transmission will not upshift, even if
the engine has reached its overrevving
range. Shift up to the next gear before
the engine has reached its overrevving
range. Make absolutely certain that the
engine speed does not reach the red
marking on the tachometer
(page 24). Otherwise the engine
could be damaged which is not covered
by the Mercedes-Benz Limited Warran-
ty

177 Controls in detail
Automatic transmission

Briefly press the gear selector lever to
the right in theD+direction
(page 166).
or

Press button2 on the right side of the
steering wheel (
page 174).
The transmission shifts to the next
higher gear.
If, instead of the manual program mode
symbol
M, the symbolp appears in the
right multifunction display (
page 165),
shift to the next higher gear. The fuel
supply will otherwise be interrupted to
prevent the engine from overrevving.
Kickdown
Using the kickdown when driving in the
MANUAL program mode is not possible.Deactivating manual shift program

Press the program mode selector
switch (
page 175) repeatedly
until
Cor
S appears in the right
multifunction display.
or

Restart the engine.
The transmission will go to the
automatic program mode (C orS).
The MANUAL program mode is not
stored.Emergency operation (Limp Home
Mode)
If vehicle acceleration worsens or the
transmission no longer shifts, the trans-
mission is most likely operating in limp
home (emergency operation) mode. In this
mode only second gear and reverse gear
can be activated.
Stop the vehicle.

Move gear selector lever toP.

Turn off the engine.

Wait at least ten 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.

275 Operation
Engine compartment
SL 65 AMG1Filler cap
Unscrew filler cap1 from filler neck.

Add engine oil as required. Be careful
not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.

Screw filler cap1 back on filler neck.
For more information on engine oil, see the
“Technical data” section (
page 431) and
(
page 433).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the automatic transmission. Oil level in the ABC system
The oil level in the ABC system does not
need to be checked. If there is visible oil
loss or if malfunction messages appear in
the display, have an authorized
Mercedes-Benz Center check the ABC
system.
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.

305 Operation
Tires and wheels
Tire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least three hours or
driven no more than one mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door B-pillar.
GVW (G
ross V
ehicle W
eight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GWV must never exceed the
GWVR indicated on the certification label
located on the driver’s door B-pillar.

325 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
-
The yellow ABS indicator lamp
comes on while driving.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP are also
switched off (see messages in display).
The SBC brake system is still functioning nor-
mally but without ABS available.
If the ABS control unit is malfunctioning, oth-
er systems such as Parktronic*, Distronic*,
or the automatic transmission may also be
malfunctioning.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.

Read and observe messages in the
display (
page 335).
The charging voltage has fallen below
10 volts and the ABS was switched off.
The battery may not be sufficiently charged.

Switch off electrical consumers that
are currently not needed, e.g. seat
heating.

If necessary, have the generator and
battery checked.
When the voltage is above this value
again, the ABS is operational again.

431 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
CapacitiesVehicle components and their respective
lubricants must match. Therefore use only
products tested and approved by
Mercedes Benz.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
SL 500
SL 600
SL 55 AMG
SL 65 AMG
7.9 US qt (7.5 l)
8.5 US qt (8.0 l)
9.0 US qt (8.5 l)
8.5 US qt (8.0 l)
Approved engine oils
Automatic transmission
SL 500
SL 600
SL 55 AMG
SL 65 AMG
10.3 US qt (9.7 l)
8.0 US qt (7.5 l)
9.1 US qt (8.6 l)
8.0 US qt (7.5 l)
MB Automatic Transmission Fluid
Rear axle
SL 500
SL 600
SL 55 AMG
SL 65 AMG
1.5 US qt (1.4 l)
1.3 US qt (1.2 l)
1.5 US qt (1.4 l)
1.3 US qt (1.2 l)
Hypoid gear oil SAE 85 W 90
Hypoid gear oil SAE 85 W 90
Hypoid gear oil SAE 85 W 90
Hypoid gear oil SAE 75 W 140
Hydraulic system for active body control (ABC)
approx. 4.3 US qt (4.0 l)
MB Hydraulic Fluid
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin
CHF 11S)
Front wheel hubs
approx. 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
1.1 US qt (1.05 l)
MB Brake Fluid (DOT 4+)