Cannot save throttle body settings on 1997 e230 mercedes

SOURCE: Installing a throttle body for a 1997 jag xj6 4.0liter

yes go to auto store get a book on the vehicle will show you exactly where it is and it just a couple of screws

SOURCE: mercedes sl500 1999. no throttle

change mass airflow sensor

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.

SOURCE: Mercedes E230 1995 model cannot start due to flat

the onboard settings are stored in a memory bank. you will lose no info on your settings. all cars have a default mode the car goes back to. you will have to set your clock though. good luck