1981 Volvo DL, GL and GLT
percent of recommended antifreeze and 50 percent water all the year round. Top up to the "MAX" mark.
If the engine is warm, and you are going to top up coolant, unscrew the cap slowly in order to
allow any excess pressure to escape.
Note: Do not top up with water only. Water by itself reduces the rust-protective and anti-freeze qualities
of the coolant and has a lower boiling point. It can also cause damage to the cooling system if it should
pg. 65 Alternator, jump starting
Note: This car is equipped with an alternator
When changing the battery or when carrying out work involving the electrical system, the following
should be observed:
1 A battery connection to the wrong terminal will damage the diodes. Before connections are made,
check the polarity of the battery with a voltmeter.
2 If booster batteries are used for starting, they must be properly connected to prevent the diodes from
For correct connection, see next section titled "jump starting".
3 If a fast charger is used for charging the battery, the battery leads should be disconnected.
4 Never disconnect the battery circuit (for example, to change the battery) while the engine is running,
as this will immediately ruin the alternator.
Always make sure that all the battery connections are properly tightened.
5 If any electrical welding work is performed on the vehicle, the ground lead and all the connecting
cables of the alternator must be disconnected and the welder wires placed as near the welding point as
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