2010 Mercedes C-Class Owner's Manual - Page 289

Vehicle status messages in the multifunction display Display messages Possible causes/consequences and M Solutions You tried to lock the vehicle but not all doors were closed. X Close doors and lock the vehicle again. 287 + + + + Close Doors To Lock Vehicle Key Does Not Belong to Vehicle Replace Key Battery Key Not Detected (message appears in red) The SmartKey in the starter switch does not belong to the vehicle. X Remove the SmartKey from the starter switch. The batteries in the SmartKey with KEYLESS-GO are discharged. X Replace the batteries (Y page 312). The SmartKey with KEYLESS-GO is not detected while the engine is running because the SmartKey is not in the vehicle. X Stop the vehicle as soon as it is safe to do so. X Engage the parking brake. X Search for the SmartKey. The vehicle cannot be locked centrally nor can the engine be started again after the engine is stopped. The SmartKey with KEYLESS-GO is not detected while the engine is running because there is strong radio-frequency interference. X Stop the vehicle as soon as it is safe to do so. X Engage the parking brake. X Remove the KEYLESS-GO button from the starter switch (Y page 78). X Operate the vehicle with the SmartKey in the starter switch. The SmartKey with KEYLESS-GO is momentarily not detected. X Change the position of the SmartKey in the vehicle. X If necessary, remove the KEYLESS-GO button from the starter switch (Y page 78). X Operate the vehicle with the SmartKey in the starter switch. + Key Not Detected (message appears in red) + Key Not Detected (message appears in white) + The KEYLESS-GO system is malfunctioning. Remove 'Start' X Remove the KEYLESS-GO button from the starter switch Button (Y page 78). and X Operate the vehicle with the SmartKey in the starter switch. Insert Key Z Practical hints