The radio display in my 2005 mercedes benz e320 is displaying the screen images 3 times side by side.

sounds like something in radio is overheating

For these problem,go through Mercedes Benz Car Repair Guide? http://repairhelpcenter.blogspot.in/2012/03/mercedes-benz-car-repair-guide.html
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Keep updated for more help.
Thanks.

Put in a replacement radio - electronics are a problem

Switch on ignition. Cycle left steering wheel buttons till mileage and trip are displayed. Press reset button ( left corner of instrument cluster ) for 3 seconds until reset message appears, release and press again within a few seconds and confirmation will appear on dash. switch off ignition.

Its inside your car manual on the left side as you open it up, it'll be a lil grey card that will have the radio code written on it... read the manual and it'll tell you how to put the numbers in.

you should try this website reliable-store com
It helps you repair your vehicle easily without more help. Ask the girl in chat at the bottom of the page
you can also try manualslife but no live help there
I also get from there for my part time mech shop
alll the best

Below is the procedure for resetting the service reminder:

• 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.
  

check fuses

battery located in trunk on rt side.

These instructions will work from 09/01/2003 and up 211 Model E Class Mercedes
1. Insert igntion key, switch to position "1"
2. press the page button (looks like a page in front of another page. Use the one with the writing on the rear page) on the steering wheel controls repeatedly until the mileage is displayed within the multifunction display.
3. Press the cluster illumination button 3 times in short succession. The battery voltage will be displayed.
4. Press the up or down arrow buttons until the service menu appears.
5. Use the + and - buttons to select the menu option "confirm"
6. Press the page button on the steering wheel until " complete service" is selected.
7. Confirm "Complete Service" with Page Button. The display will show "Service Confrimed"