Sometimes new systems like the "command" system have teething problems.

Failure rate of most parts are less than 0.1 %, 1 in 1000.

For that part the rate of failure seems to be maybe 5 in 1000...still a rare failure..
at dealer we have sold & serviced over 1000 W220 chassis 2000/2001 year models & haven't replaced more than 5 of those units.

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