Car 2002 C240 ,7K miles, warranty up in March.

A few times with car running I have gotten a '1 malfunction` warning on the dash display.

When I turn car off or flip through Command function on steering wheel the '1 Malfunction' goes away and I get a 'No Malfunction' message. There was never any description of the cause. Pressing the RESET button once car has been turned off retrieves nothing.

Dealer says there is no method of retrieving Malfunctions ( or accessing the cause ) when this happens. Is this right?

I did a search on this forum and didn't find anything.

I have an inkling the problem may be a bad Brake Switch, from another dealership swork. But this is just a guess.