I have uploaded three video clips on Youtube worth sharing. I recorded them few months back, when I started facing a strange type of transmission shifting problem for the first time (during cold start). You can see in my videos that when I tried to put the gear in D or R mode the engine started acting clumsily. Often times the engine stalls with a vibrant shake. Even the feeling of shifting gears lever was very hard (a clunking sound can be heard). First I thought it was due to the Engine motor mount or Transmission rubber mount, but as per my mechanic they were both ok as the symptoms of a bad Engine motor mount are very obvious to note! After a week or so this issue went away by itself and the car started acting normally. But I noticed this when I changed the Diesel from Teboil to Shell. Nevertheless, still for sure I don't know what was the reason that cause this to happen and why? W211, E220 CDI Avantgarde | Strange Transmission Shift Problem (Part 1) W211, E220 CDI Avantgarde | Strange Transmission Shift Problem (Part 2) Sound of CDI Engine Please see these videos and kindly share your expert opinion. Thanks!