CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

Error code 9243 - HELP!

Old Jul 28, 2019 | 10:25 PM
  #1  
OR-CLK350's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2018
Posts: 73
Likes: 11
From: West Linn, OR
CLK350 2007
Error code 9243 - HELP!

Hello all,

I got a Sunday night surprise (&#128545, I have "9243 - The resistance value in the ignition circuit containing component R12/10 (front passenger side airbag ignition squib) is too high" in my CLK ... I read in another forum (Rudeney) the issue is related to wiring... has anyone experienced this problem or have any advise? THANKS!





Reply
Old Jul 29, 2019 | 10:53 PM
  #2  
Rudeney's Avatar
MBworld Guru
 
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
This is the squib for the side airbag inside the seat. What I found on mine was that lifting and shoving the seat when using the easy-entry function for accessing the rear seat was causing this. The wire running through the seat was VERY tight so moving it cause it pull loose form where it attaches to the squib. My solution was to manipulate the cable from under the seat to add some slack to it.
Reply
Old Jul 31, 2019 | 09:25 PM
  #3  
OR-CLK350's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2018
Posts: 73
Likes: 11
From: West Linn, OR
CLK350 2007
Originally Posted by Rudeney
This is the squib for the side airbag inside the seat. What I found on mine was that lifting and shoving the seat when using the easy-entry function for accessing the rear seat was causing this. The wire running through the seat was VERY tight so moving it cause it pull loose form where it attaches to the squib. My solution was to manipulate the cable from under the seat to add some slack to it.
Thank you Rudeney! I’m going to tackle the repair next weekend!
Reply
Old Aug 3, 2019 | 02:54 PM
  #4  
OR-CLK350's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2018
Posts: 73
Likes: 11
From: West Linn, OR
CLK350 2007
SUCCESS! Seems like I had the same problem described by Rudeney (THANKS!). I unplugged & (re)plugged back the squib then changed the attachment point for the harness from A (cutting a nylon tie) to B (using spiral to wrap the harness to the lower bar), to reduce tension when the easy-entry is engaged. 👍 Error code is gone! 😎

Here’s a picture for anyone w/same issue.

Reply

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

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 04:35 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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