I'm not sure if the procedure is still same as on my old 1999 ML320 but you can try it.
1. Turn key to position 2 and within 5 seconds press odometer reset button twice.
2. Turn key to position 1 then press and hold the reset button while turning key back to position 2.
3. Continue to hold reset button untill buzzer sounds or new 10000 mile interval is displayed on odometer.