Well, actually, the FSS will start displaying a message, for 10 seconds after you start your car, on the display which normally shows your mileage when you are approximately within 2,500 miles or 30 days of requiring service. This is not clearly indicated in the Crossfire manual.

All MB cars built after 1998 have this system. Crossfire is an MB car.

What is clearly indicated in the manual is that you can manually request that number by pushing the trip meter reset stem twice quickly as indicated in the manual.

You can also manually reset the number through that stem as indicated in the manual.

The FSS in the Crossfire also spots an electronic oil level indicator, manual will show you how to use it.

As the name implies, it is flexible and as I've said before, makes a decision based on a whole bunch of parameters, so it may very well exceed 7,500 miles or 12 months before it tells you to go get your oil changed.

For those interested, here are the parameters:

- Time (based on cluster clock)
- Speed (based on ABS/ESP control system via CAN)
- Coolant temp (sensor)
- Engine RPM (from CAN)
- Engine oil temp (sensor)
- Engine oil correction factor
- Engine oil level (sensor)
- Load

The FSS may not be accurate if the CAN is reset or cluster clock is reset.
The manual does mention about this. I believe that any reset can be compensated with through the MB tool, not sure about this part, never had to do it yet.