Date registered: Jun 2012
Vehicle: 1998 E320 base sedan @ 160kmiles
Location: Boca Raton, FL
Mentioned: 79 Post(s)
Quoted: 1187 Post(s)
It could work if you are able to hack several other modules' coding. The old PRND-4321 shifter interfaces with the EGS51 transmission control unit directly regrading the gear identification. For the touchmatic version, the selected gear (PRND-+) info is sent via the can bus,, and also to other modules like the instrument cluster. The main question is, does the engine computer / traction control, etc, care if the TCU is EGS51 or EGS52 ?
Here is the diagram for the touchmatic.
There are also mechanical issues like Parking shift lock, reverse/ park lock, reverse signaling etc etc..