What does service B mean on a Mercedes C300?
Service B is a Service Interval in the Mercedes-Benz Flexible Service System that is recommended every 20,000 miles or 12-months after your Mercedes-Benz Service A, for 2009 and newer Mercedes-Benz. Your vehicles maintenance service indicator will also notify you when your next maintenance service is due.
What to do if your Mercedes COMAND control knob is broken?
Save money by simply replacing the broken plastic shaft with a new aluminum version of it. You can replace the broken shaft yourself or send your Mercedes COMAND unit to a company such as IE Works, which will repair your unit and return it to you. Here is a link where you can order their service: Mercedes COMAND Broken Shaft Service on eBay
Why is the scroll button on my COMAND controller not working?
A plastic shaft within the scroller knob unit snaps causing the scroll function to no longer work on the screen. It is a common fault on these vehicles for the comand controller knob to stop functioning correctly. A poor-quality plastic shaft within the controller knob unit snaps.
What to do if your comand is not working?
All other functions will continue to work. Pressing the rotary wheel is no reaction on the monitor (Comand APS) Functions to the left, right, up, down, press Back button, cancel button may still work. There is no need to replace the entire COMAND unit, as suggested by Mercedes-Benz.
Why did my Mercedes Benz COMAND stop working?
The fiber optic cables are used to transmit the sound signal of your Mercedes-Benz between the different units for better sound quality and faster transfer rates. When one of your components goes down, your COMAND will stop functioning. You need to figure out which component is defective by bypassing each component until you find the problem.
Why is my command COMAND knob not working?
The Comand knob has a known fault where the internal shaft breaks at about 4 years after the build date. This is a frustrating problem we consumers should not have to put up with in a high quality car.
Save money by simply replacing the broken plastic shaft with a new aluminum version of it. You can replace the broken shaft yourself or send your Mercedes COMAND unit to a company such as IE Works, which will repair your unit and return it to you. Here is a link where you can order their service: Mercedes COMAND Broken Shaft Service on eBay
All other functions will continue to work. Pressing the rotary wheel is no reaction on the monitor (Comand APS) Functions to the left, right, up, down, press Back button, cancel button may still work. There is no need to replace the entire COMAND unit, as suggested by Mercedes-Benz.
A plastic shaft within the scroller knob unit snaps causing the scroll function to no longer work on the screen. It is a common fault on these vehicles for the comand controller knob to stop functioning correctly. A poor-quality plastic shaft within the controller knob unit snaps.