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http://www.xoutpost.com/articles/x5/e...ts-bmw-x5.html
How to Reset Service Interval Lights
For X5's produced from October/November 2000 and beyond:
1. Key in 0 or off position.
2. Press and hold odometer button and turn key to 1 or acc. position.
3. Keep button pressed until any of the following words appear in display: "oil service" or "inspection", with "reset" or "re". For vehicles with "high cluster", the fuel amount (in litres) remaining until next service is displayed (i.e. 3224).
4. Press and hold button again until "reset" or "re" flash. If there is no "flash", minimum consumption value has not been met.
5. While display is flashing, press button briefly to reset service interval indicator. After display has shown new interval, the following will appear in display for approx. 2 seconds:"END SIA"