Fuses; Battery - Mercedes-Benz 300 D 1984 Owner's Manual

E le ctrica l System

Fuses

The fuse box is located in the engine
com partm ent.
& 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.
72
Fuses m ust 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.
A fte r replacing a fuse, screw on the
fuse box cover firm ly to prevent cold
air leaks into the vehicle.

Battery

Check the fluid level in the cells from
outside approxim ately every 4 weeks,
and more often in sum m er and in hot
zones.
The fluid level must be between the
lower and the upper markings.
Refill battery only with distilled water.
Do not use metal funnels nor push
through the overfill-protection dia­
phragm s in filler holes.
The battery is com pletely filled when
the water stops draining through the
overfill-protection diaphragm.
To check the battery charge w ith a
hydrom eter, push its tip through the
overfill-protection diaphragm and
take the electrolyte sample.
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.
Caution:
While the engine is running the
battery terminal clamps m ust not be
loosened or detached as otherwise
the alternator and other electronic
units would be damaged.