Does it REALLY have to come out?
Thread Starter
Member
Joined: Oct 2005
Posts: 170
Likes: 13
From: Southern California
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
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
Last edited by RNajarian; Sep 23, 2017 at 03:34 AM.
Thread Starter
Member
Joined: Oct 2005
Posts: 170
Likes: 13
From: Southern California
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.
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.
Last edited by RNajarian; Sep 22, 2017 at 06:08 PM.
