Need to replace shifter circuits e320
Depends on the year... pre-facelift is replaceable - with VIN# - reconfirm part# with dealer parts dept:
https://www.amazon.com/Mercedes-Benz.../dp/B00KWEZQIU
Replacing the switch with shifter is out is relatively easy - BEST with battery discconnect (key out of ignition both on disconnect and reconnect) - switch needs to go back in the shifter the way it comes out - and the shifter needs to go back in the way it comes out.
Have radio code and accessory system reset instructions at hand on battery reconnect.
Post-face lift - I don't "think: replaceable.
Verify diagnosis 1st - hate to do a bunch of work on the wrong source-issue.



