Mercedes-Benz 600 SEL 1993 Owner's Manual page 112

Important!
5. Start engine of the vehicle with
the charged battery and run at
high idle. Then start engine of
the disabled vehicle in the
usual manner.
6. After the engine has started,
remove jumper cables by
exactly reversing the above
installation sequence, starting
with the last connection made
first. When removing each
clamp, make sure that it does
not touch any other metal while
the other end is still attached.
110
Warning!
Never lean over batteries while
connecting or jump starting,
you might get injured.
Battery fluid contains sulfuric
acid. Do not allow this fluid to
come in contact with eyes,
skin or clothing. In case it
does, immediately flush
affected area with water,
and seek medical help.
A battery will also produce
hydrogen gas, which is
flammable and very explosive.
Keep flames or sparks away
from battery, avoid improper
connection of jumper cables,
smoking etc..
Important!
A discharged battery can freeze at
approx. + 14°F (-10°C ). In that
case, it must be thawed out before
jumper cables are used.
Jumper cable specifications:
• Minimum cable cross-section of
25 mm2 or approx. 2 AWG
• Maximum length of 11.5 ft.
(3.5 m).