1989 Volvo 740
WARNING!
Oil spilled on a hot exhaust pipe constitutes a fire
risk.
A Cold transmission: oil tempe105°F (+40°C). This is a normal temperature for the transmission after idling for about 10 minutes.
At oil temperature below +105°F (+40°C), the level may be below the MIN mark.
B Warm transmission: oil tempe190°F (+90°C). This temperature is reached after driving for about 30 minutes.
At oil temperature above +195°F (+90°C), the level may be above the MAX mark.
NOTE:
The engine should be idling when checking transmission fluid level.
Check the oil level as follows:
Park the car on level surface with the engine idling. Slowly move the selector lever through all the gear positions and then to position P.
Wait 2 minutes before checking the oil level. As the illustration shows, the dipstick has a "Cold" and a "Warm" side. The oil level should be
between the MIN and MAX marks. Wipe the dipstick with a clean cloth.
WARNING!
The oil may be very
hot
Do not use rags that could leave lint on the dipstick. The transmission is topped up via the dipstick tube. The space between the MIN and
MAX marks on the dipstick corresponds to 0.5 US qt. (0.5 liter). Do not Fill the transmission with too much oil, since this can result in oil
being ejected from the transmission.
Too little oil, on the other hand, can negatively affect transmission operation, particularly in very cold weather.
pg. 110 Cooling system
Check coolant level
The cooling system must be filled with coolant and not leak to operate at maximum efficiency. Check the coolant level when filling fuel.
The level should be between the "MAX" and "MIN" marks on the expansion tank. The check should be made with particular thoroughness
when the engine is new or when the cooling system has been drained.
Do not remove the filler cap other than for topping-up with coolant. Frequent removal may prevent coolant circulation between the engine
and the expansion tank during engine warm-up and cooling.
Changing coolant
Every two years or 30.000 miles (50,000 km) the cooling system should be drained, flushed and refilled.
Remove the expansion tank cap. Open the drain cocks on both sides of the engine block and disconnect the lower radiator hose.
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