95 E320. Here's the history: I recently had my ignition switch, steering lock, key cylinder, key coded to VIN, etc all replaced by a Mercedes shop. Basically the works, all OEM from dealer parts (I know because I ordered them)

Everything seemed to be snug and brand new, working flawlessly. But here is what is happening, consistently:

Pull into parking spot
On phone or otherwise distracted
Turn car off, remove key, foot on brake
Remove foot from brake - realize CAR IS IN DRIVE when car starts to roll
Slam car in park

This was not an issue until the car rolled down my driveway a few weeks ago. Uhh.

3 Things:
The park interlock works otherwise (ie you cant start it if not in P or N)
Brake interlock works perfectly.
Key-in-ignition Buzzer works fine.

Aha -- so it seems like something is amiss. This past weekend I took off the underdash panel, replaced a headlight switch bulb, and looked around. The cable to the shift interlock was securely fastened.

The thing is, I do not want to take it back to this shop as they already screwed some wood trim up.

Does anyone know what is not connected or what's up? I think there is perhaps some T shaped piece that should have been put into the back of the new ignition switch. Is that it ?

Thanks.