Mercedes-Benz 300 TD-TURBO DIESEL 1982, Owner'S Manual

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Electrical System
Fuses
The fuse box is located in the engine
compartment.
A summary of the protected equip­
ment is printed in the fuse box cover.
Fuse arrangement in the box —
starting at engine side, proceeding
from inside to outside —
upper row: odd numbers
1.3.5 etc. up to 13;
lower row: even numbers
2 .4 .6 etc. up to 14.
Fuses must be replaced, not repaired
or bridged.
Spare fuses are stored in the fuse box
(observe amperage and color code).
Determine the cause of a short prior
to replacing a burned-out fuse.
After replacing a fuse, screw on the
fuse box cover firmly.
Battery
Check the fluid level in the cells from
outside approximately every 4 weeks,
and more often in summer and in hot
zones.
The fluid level must be between the
lower and the upper markings.
Only replenish with distilled water. Do
not use metal funnels and do not
perforate the diaphragm of the bat­
tery overfill protection.
The battery is filled to the maximum
level when the water level in the cell
filling chamber stops going down.
If battery acid is to be extracted for
battery diagnosis purposes, perforate
the diaphragm with the hydrometer or
the tube attached to it.
Coat battery terminal clamps with
acidproof grease. Keep battery clean
and dry.
Only tow vehicle with the battery
connected.
Only charge battery with a battery
charger when it is disconnected from
the vehicle electrical circuit.
Note:
While the engine is running the
battery terminal clamps must not be
loosened or detached as otherwise
the alternator and other electronic
units would be damaged.
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