CLS Coupe (C219) Discuss the CLS Coupe.

COMMAND System dead after battery drain

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Aug 24, 2022 | 03:33 PM
  #1  
Bclub2's Avatar
Thread Starter
Newbie
 
Joined: Aug 2022
Posts: 8
Likes: 0
2011 CLS550
COMMAND System dead after battery drain

I recently had my 2011 CLS550 in the dealership (MB McKinney, Texas. Please never go there, the service is absolutely horrible) for a few cosmetic repairs and a bent wheel. It ended up taking nearly 2 weeks for the wheel to arrive back, and in that time the car sat, I don't know for how long, but it did, and the battery died. I had never had any issues with the battery before, so this seemed odd to me.

Finally picked up the car, and noticed the COMMAND system was dead, no audio, no screen, would not accept discs, etc. I tried resetting it, tried disconnecting and reconnecting the battery, I tried checking fuses, and nothing seems to be wrong, but the unit is not functional at all. The dealership offered to keep my car for even longer to diagnose it (of course, they said the repairs would be on me, as they accept no fault for it, even though it worked perfectly when I brought it in, and now it's bricked)

I'm looking to see if anyone else has a similar issue, or has any advice on solving it. The only fuse that I could find related to the COMMAND system was fuse 28 and 26 in the fuse box inside of the front left door, as well as fuse 6 in the cargo area and they were all fine, are there any other fuses or places I should check?
Reply
Old Aug 27, 2022 | 04:27 PM
  #2  
MBENZTECH's Avatar
Super Member
15 Year Member
Liked
 
Joined: Feb 2007
Posts: 612
Likes: 292
From: Republic of Texas
W203 W212 W211 R53MCS
Your radio should also have a fuse on the back. Sometimes when jump starting this vehicles, this fuse pops. Specially if the key was on during Jump start.
Reply
Old Aug 27, 2022 | 05:53 PM
  #3  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto





Previous year models, same procedure:


Reply

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


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


All times are GMT -4. The time now is 01:21 PM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE