Does it REALLY have to come out?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 09-16-2017, 09:41 AM
  #1  
Member

Thread Starter
 
RNajarian's Avatar
 
Join Date: Oct 2005
Location: Southern California
Posts: 166
Received 11 Likes on 11 Posts
2020 E 350; 2022 E450 Coupe; 2005 Porsche Cayenne; 1975 Porsche 911 Carrera 3.0
Does it REALLY have to come out?

My 2012 C350 (33,000 miles) suffers from the broken Command Control Knob shaft. There is a lot written up on how to repair that problem here on MBWorld. The YouTube video I found how to repair the problem states you have to Remove the shift knob trim and maneuver the wiring around shift mechanism to remove the entire Command Control unit.


The folks at Pelican Parts (a great resource for parts and a sponsor here) have a DIY tutorial on how to remove the Command Control Unit, which also calls for removal of the shift trim.
http://www.pelicanparts.com/tech art...eplacement.htm

When watching the YouTube Video I noticed there is a little play/slack in the Command Control Knob, just enough to disassemble the unit. For anyone who has done this repair . . .

Is it possible to open up and replace the broken shaft without completely removing the Command Control Knob? I get nervous removing plastic trim parts with tabs that tend to break.

Photo Credits below are (1) I.E. Works (no affiliation) manufacturer of aluminum replacement shaft for Command Control Unit and (2) a still shot from the YouTube video linked above
Attached Thumbnails Does it REALLY have to come out?-img_0281.png   Does it REALLY have to come out?-img_0283.png  

Last edited by RNajarian; 09-23-2017 at 03:34 AM.
Old 09-22-2017, 05:20 PM
  #2  
Member

Thread Starter
 
RNajarian's Avatar
 
Join Date: Oct 2005
Location: Southern California
Posts: 166
Received 11 Likes on 11 Posts
2020 E 350; 2022 E450 Coupe; 2005 Porsche Cayenne; 1975 Porsche 911 Carrera 3.0
NO it does NOT

Well my replacement aluminum Command Controller Knob came in today and I successfully replaced it.

Here are some thoughts I would like to share with the group.

1) In order to repair the Command Control Knob you DO have to remove the shift knob AND the trim around it.

2) You do not have to completely remove the Command Controller Knob to complete the repair. However, there is NOT a lot of slack so be careful not to damage the cable.

3) With the unit still connected to the car you can completely disassemble it and make the repair as illustrated in the link in post number one.

4) When reassembling the unit I found it very difficult to try to attach the top lever to the plastic lever holders on the command unit with the lever holder installed; but if was very easy to first assemble it THEN install the lever/lever holder unit.

Other than that, the procedures to repair the unit are well documented in this forum.

Hope this helps someone.
Attached Thumbnails Does it REALLY have to come out?-e7a21a32-39fc-4e7c-840d-cbb35c1c4584.jpeg   Does it REALLY have to come out?-962999cd-2e3e-4958-8f01-71e90f956f5d.jpeg   Does it REALLY have to come out?-cdffd28f-1c7d-4fb8-9032-1e1e3bfbb71c.jpeg   Does it REALLY have to come out?-f91b0637-fb1e-4adb-9471-ac2608449ac3.jpeg  

Last edited by RNajarian; 09-22-2017 at 06:08 PM.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Does it REALLY have to come out?



All times are GMT -4. The time now is 11:33 AM.