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Check oil level
Check the oil level at every basic service. Unscrew the plug
in the level/filler hole. The oil level should reach the bottom
of the hole.
Change gearbox oil and oil filter
– every 120,000 km to Volvo STD 1273,05 specification
97305. (Example: SAE 80W/90 part no. 1161933 for 20
litre pack. 1161280 for 208 pack.)
– or at least once a year.
Halve the interval for changing when driving long periods at
altitudes over 2000 m above sea level.
Drain the oil while still warm. The filter is located under a
protective cover. Remove it and unscrew the filter (filter
spanner 999 6671).
Fit a new filter. Check filter tightness before refitting the cov-
er. Fill up to the correct level.
Start the engine and run it for about one minute. Check the
tightness around the filter. Check the oil level and adjust if
necessary.
Make sure the O-ring sealing between the filter console and
the protective cover is located in its groove on the filter con-
sole and that the filter console and the inside of the cover
are both clean. Lubricate the O-ring. Refit the protective
cover on the oil filter.
Oil change when using
Volvo 97307* transmission fluid ........... Max. 180,000 km
But at least once a year
When using other brands ..................... Max. 120,000 km
But at least once a year
* Part number: 116 1950
Manual gearbox G8 EGS, G8 MGS
Service and Maintenance
Protective cover
over oil filter
Level/filling Drain
The illustration shows the location of the oil
filter on buses with retarder.
On buses without retarder, the oil filter is
located on the end of the gear box.
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