My 1996 e230 mileage 93000 is slow inchanging gear when cold and once warmed up there is a jerking change. cna anyone help with this please

SOURCE: Cant unlock 1996 Merc E230 using fob

Are the batteries in properly? Are the battery connections clean? Do any of the other functions on the FOB work? This might be one for a Mercedes dealer. A phone call to one could generate a little customer PR with a simple solution!!

SOURCE: mercedes e230 1998. cold starting.

Mercedes has a cold start valve to spray extra fuel to assist the ignition when the temperature is cold. This is the problem with the cold start valve is not opened when it needed. There are 2 possible causes: 1- The valve is bad. 2- The coolant temperature sensor is bad.
The valve part is expensive and labor is not cheap. The first economic way to address is to replace the coolant temperature sensor. This sensor gives a different resistance reading as temperature changed. When it is bad, it give an erratic reading at cold temperature so the ECM could not recognize to give a signal to open the Cold start valve.