Mercedes-Benz Metris Operator's Manual page 194

192 Breakdown assistance
192
Make sure that the POSITIVE terminal of
#
a connected battery does not come into
contact with vehicle parts.
Never place metal objects or tools on a
#
battery.
When connecting and disconnecting the
#
battery, always observe the sequence of
battery terminals described.
During starting assistance, always take
#
care to connect only battery terminals of
identical polarity.
During starting assistance, observe the
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sequence described for connecting and
disconnecting the jumper cables.
Do not connect or disconnect the battery
#
terminals with the engine running.
& W W ARNING
ARNING Danger of chemical burns from
the battery acid
Battery acid is caustic.
Avoid contact with the skin, eyes or
#
clothing.
Do not lean over the battery.
#
Do not inhale battery gases.
#
Keep children away from the battery.
#
Immediately rinse battery acid o thor-
#
oughly with plenty of clean water and
seek medical attention immediately.
* N N O O TE TE Damage to electronic components
due to work carried out incorrectly on the
battery
If the starter battery is disconnected before
the key is removed from the ignition lock, elec-
tronic components or assemblies, such as the
alternator, can be damaged.
Switch o the vehicle and remove the
#
key from the ignition lock.
Check to see that there are no indicator
#
lamps lit in the instrument cluster.
Always disconnect the negative clamp
#
rst and then the positive clamp.
Do not interchange the battery clamps.
#
Always have work on the battery performed at a
quali ed specialist workshop.
If, in exceptional circumstances, you have to dis-
connect the battery yourself, pay attention to the
following:
Observe the notes on the 12 V battery
R
( page 187).
/
Secure the vehicle to prevent it from rolling
R
away.
For vehicles with an automatic transmission,
R
the transmission is locked in position j a er
the battery has been disconnected. You can
then no longer move the vehicle.
The battery and the cover of the positive termi-
R
nal clamp must be installed securely during
operation.
Seat base (example: right-hand front seat)
The following description on connecting and instal-
ling the battery uses the example of the starter
battery in the seat base of the right-hand front
seat.
The auxiliary battery is disconnected and removed
in the same way as the starter battery. The auxili-
ary battery is located in the seat base of the le -
hand front seat.
Switch o all electrical consumers.
#
Switch o the vehicle and remove the key from
#
the ignition lock.
Open the front right-hand door.
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Press both catch springs
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cover 2 upwards from the seat base.
Remove cover 2 by pulling upwards at an
#
angle from the seat base.
1 down and remove