Volvo 164 Owner's Manual - page 52
SERVICING
ELECTRICAL SYSTEM
30 Check the battery electrolyte level
The electrolyte level should be checked
regularly. A suitable time to do this when
the fuel tank s being filled. The electro-
l yte level should be 5-10 mm (3/16-3/8")
above the top of the cell plates. If the level
i s too low, top up with distilled water.
Never check the electrolyte level by light-
i ng a match. The gases formed in the cells
are highly explosive.
31 Check 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.
32 Check headlight alignment
The alignment of the headlights should
be checked in a workshop after every
10 000 km (6000 miles).
51
Special instructions when working on the electronic fuel injection system
1. Never let the engine run without the
battery being connected.
2. Never use a high speed battery
charger as a starting aid.
3. When using a high speed charger to
charge the battery in the vehicle, the
battery should be disconnected from
the rest of the electrical system.
4. The control unit must not overheat
above +85° C (185° F). The control
unit must not be connected up (the
engine started) when the ambient
temperature exceeds +70
°
C (158
°
F). (With paintwork, etc., when the
vehicle is being stove-heated, it may
not be driven out of the oven, it
must be conveyed out. If there is risk
of temperatures exceeding +85° C
(185° F), the control unit must first
be removed.)
5. The ignition should be switched off
before connecting up or disconnect-
i ng the control unit.
6. For all work with fuel lines, great
care must be taken to ensure that no
dirt enters the system. Even small
dust particles can jam injectors.
Any work to be done on the electronic
fuel injection system should be carried
out by an authorized Volvo workshop
which has the proper equipment for do-
i ng this.