CLS Coupe (C219) Discuss the CLS Coupe.

Ghost in the Machine.

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 25, 2017 | 02:09 PM
  #1  
unlukky's Avatar
Thread Starter
Super Member
Photogenic
Photoriffic
Liked
Loved
 
Joined: Apr 2007
Posts: 737
Likes: 36
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
Ghost in the Machine.

Someone PLEASE help me out a bit here. I am at a complete loss.
Airmatic suspension issues. 2006 CLS500
History. Changed both front struts 2 years ago because of leaking left strut.

1 month ago came out to vehicle and back was down (more on the right, but the entire back end down). Started car and compressor would not kick on and even try to raise vehicle. Made shop appt. Next morning came out and started it and backed out of garage. Car righted itself.
Took it to MB anyway with no problems found. Fast forward 3 weeks and the car did it again. It seems a short drive tends to allow it to fix itself. This makes no sense to me. I inspected system. No leaks noted, no damage noted, rear level sensor and valve body appear normal. It could be ok for another 3 weeks, or 3 years, or 3 hours. I dont know at this point. Can someone PLEASE help me troubleshoot a little bit? I am getting the "check tire pressure alert too even though my pressures are normal and ive recalibrated a dozen times. Is this related somehow? Also, I need the true locations of the airmatic relays and part numbers if anyone has them. I've searched but come up with multiple responses and theyre different.
Reply
Old Sep 25, 2017 | 03:23 PM
  #2  
unlukky's Avatar
Thread Starter
Super Member
Photogenic
Photoriffic
Liked
Loved
 
Joined: Apr 2007
Posts: 737
Likes: 36
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
The only thing that I can think of is that the back right strut has failed internally and I will replace both rears.
Side note: the dash alerts must only be tied to the fronts because I get zero alerts of problems.
Reply
Old Sep 25, 2017 | 04:22 PM
  #3  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,629
From: North Scottsdale, AZ
'71 Pinto
Concerning tire warning - passive TPM measures wheel RPM through the ABS wheel speed sensors check front & rear RPM sensors. See attachment for Airmatic relay.
Attached Thumbnails Ghost in the Machine.-front.jpg   Ghost in the Machine.-rear.jpg  
Attached Files
File Type: pdf
Front SAM relay.pdf (24.1 KB, 194 views)
Reply
Old Sep 25, 2017 | 05:46 PM
  #4  
unlukky's Avatar
Thread Starter
Super Member
Photogenic
Photoriffic
Liked
Loved
 
Joined: Apr 2007
Posts: 737
Likes: 36
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
Thumbs up

Originally Posted by konigstiger
Concerning tire warning - passive TPM measures wheel RPM through the ABS wheel speed sensors check front & rear RPM sensors. See attachment for Airmatic relay.
You are exactly who came to mind when I posted here. Thanks so much for the reply. Is there any way to check and see which sensor is going bad? I'd hate to shotgun all 4 of them.
On the Airmatic, its the weirdest thing ever. I am at a loss.
Reply
Old Sep 25, 2017 | 05:58 PM
  #5  
unlukky's Avatar
Thread Starter
Super Member
Photogenic
Photoriffic
Liked
Loved
 
Joined: Apr 2007
Posts: 737
Likes: 36
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
Also, I just got the car out of the dealer where they changed the damn SBC unit. I am wondering if a code needs to be cleared or something thats causing this. I understand I dont have TPMS in the classic sense. Rather the car reads wheel revolutions to detect tire pressure differences.
Reply
Old Sep 26, 2017 | 01:21 PM
  #6  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,629
From: North Scottsdale, AZ
'71 Pinto
Request they revisit, pull/clear codes since problem began after SBC replacement, see attachment.
Attached Thumbnails Ghost in the Machine.-capture.jpg  
Reply
Old Oct 3, 2017 | 04:48 PM
  #7  
unlukky's Avatar
Thread Starter
Super Member
Photogenic
Photoriffic
Liked
Loved
 
Joined: Apr 2007
Posts: 737
Likes: 36
From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
So after the 10th reset of the TPMS it seems it may have stuck this time.
And as far as the suspension: It had not had another problem since, but I changed the rear air struts just in case. Now I am driving again and crossing my fingers.
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 07:18 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE
story-7
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

Slideshow: The 2027 update adds a fully digital steering system, revised styling, and potential charging upgrades as the company looks to revive interest in the luxury EV.

By Verdad Gallardo | 2026-04-04 10:24:38


VIEW MORE
story-8
8 Mercedes Models With Poor Reliability Records

Slideshow: From problematic air suspensions to early dual-clutch transmission issues, these specific models and years stand out as the least dependable modern Mercedes vehicles.

By Verdad Gallardo | 2026-03-26 18:08:10


VIEW MORE
story-9
Magnificent New Mercedes-Maybach S-Class Revealed: 12 Things to Know

Slideshow: Mercedes-Maybach has refreshed the S-Class with new lighting signatures, AI-driven software, and even more elaborate rear-seat luxury.

By Verdad Gallardo | 2026-03-25 18:01:51


VIEW MORE