2008 Mercedes C-Class Owner's Manual - Page 409

Practical hints What to do if ...? Display Possible cause/consequence Replace Key Battery Key Detected In Vehicle Obtain A New Key Remove "Start" Button And Insert Key Possible solution Replace the batteries ( page 428). Take the SmartKey with KEYLESS-GO* out of the vehicle. Contact an authorized Mercedes-Benz Center as soon as possible. Remove KEYLESS-GO* button (Canada only) from the starter switch ( page 83). Operate the vehicle with the SmartKey in the starter switch. I The batteries in the SmartKey with KEYLESS-GO* are discharged. A SmartKey with KEYLESS-GO* (Canada only) left in the vehicle was recognized while locking the vehicle from the outside. The SmartKey with KEYLESS-GO* (Canada only) must be replaced. The KEYLESS-GO* system (Canada only) is malfunctioning. I Close Doors To Lock Vehicle Key Does Not Belong to Vehicle Don't Forget Your Key You wanted to lock the vehicle but not all doors were closed. You have insert an incorrect key in the starter switch. This display appears (for a maximum of 60 seconds) if the driver's door is opened with the engine turned off and no SmartKey in the starter switch. This message is only a reminder. Close doors and lock vehicle again. Remove key and insert the correct key. Take the SmartKey or SmartKey with KEYLESS-GO* (Canada only) with you when leaving the vehicle. 408