Just for updating my case , last week i went back to same workshop and asked mechanic to cancel the bypass for heater pipes under my responsibility, i said return everything as it was and let me drive it couple of days to evaluate the situation, the surprise was that after returning the heater pipes to original status i didn't get the bad smell back from AC inside the cabin and AC working perfect like freezer ( dont ask me how bad smell not returned coz i dont know , hehe ) .
However, still am suffering from slight overheating while car is standing or moving slowly which is affecting on overall car performance and make me feel nervous, as i said am starting to get grindings noises , RPM become higher the norm , and car want to go forward like you push the acceleration paddle,also when i slow down till 0 speed the gearbox shifting very rough from 2nd to 1st like someone hit you from back , AC performance becomes bad , whether temperature on dashboard raised over 50 c°!!
and all of these observations gone and car returns normal when i drive it on speed 100km/h for around 1 min and vehicle keeps normal as long as i keep driving on highway.then again returns back to "crazy mode" once i stuck on traffic and so on!!! .
Even in the night its doing the same , i cant believe that my dashboard shows weather temperature is above 43 c° in the night!!
Please look to this pic while the car is in overheating condition, is the temperature gauge reading is normal like this? Also have a look to RPM reading while its on N position,its higher the norm