What is the cost to fix camshaft and timing

SOURCE: How do I clear the service reminders on an '07

The following process will clear the service reminders on your car. All the best.

• Switch on ignition.
  
• Press the system selection button repeatedly until the total mileage is displayed in the multifunction display.
  
• Press the scroll forward/backward button repeatedly until the service symbol is displayed in the multifunction display.
  
• Press and hold the reset button for 3 seconds.
  
• The multifunction display will show "DO YOU WANT TO RESET THE SERVICE INTERVAL? CONFIRM WITH THE RESET BUTTON”.
  
• Press reset button to confirm.
  
• Switch off ignition
  

SOURCE: 2007 mercedes s550 turn key nothing happen new

Hi,

Do you have another key?

If yes, try with another key.

If the same problem persists with the new key, its unlikely to be a key issue. The starter system is fairly complex & needs diagnosing on a diagnostic tool such as Mercedes STAR diagnosis.

The EIS (Electronic Ignition Switch) reads the key information & sends a signal to the engine ECU to start (assuming it recognizes the correct key), the ECU then sends a signal to the starter to start the engine. The problem could be anywhere in between these components.

The EIS is a fairly common part for failure but this needs to be checked for fault codes & actual value readings to check the status of the switch.

I would take it back to the dealer for them to investigate as soon as possible as there is a chance it could fail completely leaving you in a stranded situation.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!