Mercedes-Benz C-class Operator's Manual page 328

Important!
A discharged battery can freeze at approximately +14 ° F
(–10 ° C). In that case, it must be thawed out before
jumper cables are used. Attempting to jump start a
frozen battery can result in it exploding, causing
personal injury.
Jumper cable specifications:
• Minimum cable cross-section of 25 mm
approximately 2 AWG
• Maximum length of 11.5 ft. (3.5 m).
If the battery is discharged, the engine should be started
with jumper cables and the (12 V) battery of another
vehicle.
Only use 12 V battery to jump start your vehicle. Jump
starting with more powerful battery could damage the
vehicle's electrical systems, which will not be covered
by the Mercedes-Benz Limited Warranty.
The battery is located in the engine compartment on the
right hand side.
Jump starting
Instruments
Operation
and controls
2
or
Instrument
Driving
cluster display
1 Negative (–) under hood terminal
2 Positive (+) under hood terminal
319
Practical hints Car care
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Index
data