[QUOTE=Red Paul;845654]
My car would not start, it was towed to an independent shop. The shop ordered 5099541-AA Module DO 08035031 from Chrysler. They also ordered 168-464-02-53 Transponder from Mercedes-Benz./QUOTE]

A SKREM, Power window module and the third? Transponder meaning the remote rx for the keys to lock/unlock?

If the SKREM is replaced it should have been able to "read" the existing keys or programmed to read the key RFID to start the car.

Not sure about a power window module on our cars because if I recall correctly the body control module does the windows so I am not sure how that relates to no start or no unlock/lock.

I am trying to get a complete picture of what the shops did.