Volvo 164 Owner's Manual - page 50
SERVICING
ELECTRICAL SYSTEM
29 Checking the battery electrolyte level
The electrolyte level should be checked
regularly. A suitable time to do this is
when the fuel tank is being filled. The elec-
trolyte level should be 5-10 mm (3/16--
3/8") above the top of the cell plates. If the
l evel is too low, top up with distilled water.
Never check the electrolyte level with a
li ghted match. The gases formed in the cells
are highly explosive.
30 Checking the state of charge of
the battery
The state of charge of the battery should
be checked after every 10 000 km (6000
miles). The check is made with the help
of an hydrometer which shows the spe-
cific gravity of the battery acid. See page
66. At the same time, check the lead ter-
minals and terminal studs to make sure that
they are tight, coated with grease and that
the battery is firmly fixed.
31 Checking headlight alignment
The alignment of the headlights should be
checked in a workshop after every 10 000
km (6000 miles).
NOTE that the headlight beams can alter
their angle on the road according to the load
i n the car.
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