no , there isn't a timing belt it has chain power instead of belt power
how do i check oil level on Mercedes c240 2001
One
To reset the clock on a 2001 Mercedes C240, first, turn the ignition to the "On" position without starting the engine. Then, locate the clock adjustment buttons on the dashboard; typically, there will be a "H" (hour) and "M" (minute) button. Press the "H" button to set the hour and the "M" button to set the minutes. Once the correct time is displayed, simply turn off the ignition, and the settings will be saved.
Unlock the ignition? Is the key not turning? This car has a steering lock, but if the key is not turning you probably have either a bad key or a bad EIS (electronic ignition switch) make sure you check it with BOTH keys first, if you have another one.
On my c240 2001 car amplifier is located in the trunk on the right side (passender side of the vehicle) behind the carpet.
Bring to dealer for repair
Chek out the ignition coils, the wires and the spark plugs..
To turn off the rear door airbag in a Mercedes C240, locate the airbag deactivation switch, which is typically found in the glove compartment or near the driver's side dashboard. Use the ignition key to turn the switch to the "off" position. Always refer to the owner's manual for specific instructions and safety information related to airbag systems in your vehicle. Make sure to reactivate the airbag when necessary for passenger safety.
http://www.installuniversity.com/mb/w203/w203/fp.html
you take the old bulb out and put in the other
When removing key, the steering colum locks to help prevent theft.