While Driving; Problems - Mercedes-Benz 2009 SL-Class Operator's Manual

Controls in detail
Driving and parking
i Once the vehicle is in motion, the auto-
matic central locking system engages and
the locking knobs in the doors move down.
The automatic door lock feature can be
deactivated ( Y page 140).
Automatic transmission
G Warning!
It is dangerous to shift the automatic trans-
mission out of park position P or neutral
position N if the engine speed is higher than
idle speed. If your foot is not firmly on the
brake pedal, the vehicle could accelerate
quickly forward or in reverse. You could
lose control of the vehicle and hit someone
or something. Only shift into gear when the
engine is idling normally and when your
right foot is firmly on the brake pedal.
! Only shift the automatic transmission into
reverse gear R or park position P when the
vehicle is stopped. Otherwise the auto-
matic transmission could be damaged.
X
Depress the brake pedal.
The gear selector lever lock is released.
X
Shift the automatic transmission into drive
position D or reverse gear R.
112
i Shifting the automatic transmission out of
park position P is only possible with the
brake pedal depressed.
Only depressing the brake pedal releases
the gear selector lever lock.
X
Wait for the gear selection process to com-
plete before setting the vehicle in motion.
X
Release the brake pedal.
X
If engaged, release the parking brake.
X
Carefully depress the accelerator pedal.
After a cold start, the automatic transmission
shifts at a higher engine revolution. This
allows the catalytic converter to reach its
operating temperature earlier.
For more information on driving, see "Driving
Y
instructions" ( page 236).
Problems while driving
The engine runs erratically and misfires
An ignition cable may be damaged.
R
The engine electronics may not be oper-
R
ating properly.
Unburned gasoline may have entered the
R
catalytic converter and damaged it.
X
Give very little gas.
X
Have the problem checked at an authorized
Mercedes-Benz Center as soon as possible.
The coolant temperature is above
248‡ (120†)
The coolant is too hot and is no longer cooling
the engine.
X
Stop the vehicle in a safe location as soon
as possible.
X
Turn off the engine immediately.
X
Allow the engine and coolant to cool off.
X
Check the coolant level and add coolant if
Y
necessary ( page 207).