After a long time,Mercedes ESL get broken easily.And do it youself to replace the ESL Motor,it cost nearly $20.But if you go to garage,it take you $500-$1000 do it.So I share you how to repair Mercedes ESL Motor Trouble.
Step 1: Use Hammer and crewdriver to open ELS shell,then
pull down the PCB Board.
Step 2：Rplace the broken Motor with new one.
Step 3: Re-install the thing back in ELS.
Note: Put a little of lubricant on the motor gear,it will be better.