I just did it today, but you have to push in the right button, not the left button. Then oil light will appear, if you quickly realease and pressagain,the "serv" light will appear. Then go ahead and pull the left button. this should give you a ----. and the light should be gone.

 

button A is the odometer under the speedo and B is the dimmer under the rev counter.
OEL-OIL service light
press and hold button A,
switch ignition on,
release button A,
the letters OEL or OIL will appear in the odometer display of the speedometer.
pull out button B until the letters are erased and replaced by *--*
that's the oil service light reset..
now the inspection service light.
press and hold button A.
switch ignition on.
release button A.
the letters INSP will appear in the odometer display of the.
if required clear the OEL-OIL indicator from the display as previously described