Depending on the version, either a socket wrench insert -T30023 (3357)- or a 17 mm hexagon socket wrench, can be used to release the gearbox oil filler threaded plug.
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Unscrew the gearbox oil filler threaded plug.
The oil is at the correct level if the gear is filled up to the lower edge of the oil filler hole.
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Screw in the screw.
If re-filling, do the following:
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Screw out the screw.
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Pour in gear oil up to lower edge of filler hole.
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Screw in the screw.
Tightening torque
Component
Nm
Oil drain plug to gearbox
25
The bolt has a surface which can have varying finishes depending on whether the gearbox is of magnesium or aluminium → Chapter.