they do these kinda services to check out if there is something wrong in a car or something need to be replaced , I personally don't advice any one to waist his money and his time to do that service , most of the mechanics tells you that the service takes 3 to 4 hours... it costs a minimum of 400 $ and without even fixing any thing in the car.
as long as your car is running fine then you don"t need to waist your money doing these kinda stupid services ,,,
Mercedes Benz recommend Mobil 1 regardless of year and model.
The 2003 Mercedes-Benz CL-Class has free maintenance for 4 yr./ 50000 mi..
The 2003 Mercedes-Benz G-Class has free maintenance for 4 yr./ 50000 mi..
The 2003 Mercedes-Benz S-Class has free maintenance for 4 yr./ 50000 mi..
The 2003 Mercedes-Benz SLK-Class has free maintenance for 4 yr./ 50000 mi..
The 2003 Mercedes-Benz SL-Class has free maintenance for 4 yr./ 50000 mi..
The 2003 Mercedes-Benz C-Class has free maintenance for 4 yr./ 50000 mi..
The 2003 Mercedes-Benz E-Class has free maintenance for 4 yr./ 50000 mi..
The 2003 Mercedes-Benz M-Class has free maintenance for 4 yr./ 50000 mi..
To reset the service indicator on 2003 Mercedes C230, turn on the ignition and scroll through the buttons on the steering wheel. Click on the next service due menu. Hold the adjustment knob on the left side of the cluster down, and hold for 5 seconds.
All Mercedes model cars should only use synthetic DOT4 brake fluid
299.95 plus any additional service required on the car (as quoted from the service dept on July 9 2008)