C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI
Old Jun 15, 2015, 07:26 PM
How-Tos on this Topic
Last edit by: IB Advertising
See related guides and technical advice from our community experts:

Browse all: Interior Guides
Print Wikipost

SRS Malfunction on '08 C300

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 19, 2014 | 12:31 PM
  #26  
492780dr's Avatar
Newbie
 
Joined: Feb 2014
Posts: 3
Likes: 0
C 300
Left SRS MALFUNCTION SERVICE

Originally Posted by rb23lb
ah ha!

I had this same exact problem and message...

took it into the dealer last week, the replaced the drivers seat belt buckle under warranty... I have an '08 as well...

looks like the seat belt buckles locking mechanism wears out after a while and triggers the sensor...

you have the exact same error message and issue I had, I can get you the part number replaced when I go home tonight and check my invoice...
I have the same problem could u send me parts number
Reply
Old Feb 19, 2014 | 12:50 PM
  #27  
492780dr's Avatar
Newbie
 
Joined: Feb 2014
Posts: 3
Likes: 0
C 300
Smile Left SRS MALFUNCTION and service

Originally Posted by huy801
Yes, get a replacement, then reset thecode.
COULD you send me the parts number
Reply
Old Feb 19, 2014 | 01:02 PM
  #28  
492780dr's Avatar
Newbie
 
Joined: Feb 2014
Posts: 3
Likes: 0
C 300
Part number.
Reply
Old Feb 23, 2014 | 12:30 AM
  #29  
vmccolley83's Avatar
Banned
 
Joined: Feb 2014
Posts: 6
Likes: 0
2008 C300 sport
I read this post a few months back. I finally joined forum because I am now having another common C300 issue. But wanted to let you all know this is possible to do on your own. I bought the buckle from MB and I agree w/ the other person that said getting the wire disconnect is a HUGE pain!! I have friends in the B/S that helped me and he had this little metal tooth pick looking thing... look like a dentists tool lol however the SRS light does have to be reset some B/S can do this or most mechanics can do this! So save yourself if you can!!!
Reply
Old Apr 9, 2014 | 09:59 AM
  #30  
kc_M's Avatar
Newbie
 
Joined: Apr 2014
Posts: 4
Likes: 0
2008 mercedes c300 sport
Where to buy the buckle?

Originally Posted by huy801
I had the same ting on my 08 a couple months back and I ordered a new buckle from (http://www.mbzwholesaleparts.com/) they are an actual dealership that does online sales and their prices are really good. It is very simple to replace, but you need Torx sockets and drivers, I dont remember the sizes but I just bought the whole Torx set @ Harbor Freight for like 15.00 or something. You move your seat all the way forward to remove the two bolts on the rail, then move your seat all the way backwards and remove the two bolts on the rail. Now you manually pull the seat forward about 5-6 inches then tip the seat onto the rear seats. Now you can access the wiring harness. The connector for the seat belt is yellow and has two pins on the inside, I believe it is the middle connector in the harness array, it is a PITA to deal with. Once that is done snip a couple zip ties and then jump in the back seat from the passenger's side and unbolt the seat belt buckle. Now reverse everything you did and get it back together. The light will still be on, so you need to find a buddy with an OBDii scanner/Star and reset the code. Now you are all done.

Hey sorry to bring this back, but the buckle you bought from that site (www.mbzwholesaleparts.com) was it the same as factory? And how long did it take. Skeptical about the website, don't want to buy something that would go bad in a week or so.
Reply
Old Jun 16, 2014 | 08:38 PM
  #31  
ezkahuna's Avatar
Newbie
 
Joined: Jan 2007
Posts: 2
Likes: 0
Just bought drivers side buckle

I just purchased from http://www.mbzwholesaleparts.com/.

They are an MB dealer in Medford, OR. The site says Genuine MB Parts from the Dealer (wholesale parts division). You can call them directly if you feel the need to. The Drivers Side Buckle was around sixty bucks. Another fifteen for shipping. Should be an easy fix.
Reply
Old Dec 18, 2015 | 12:40 PM
  #32  
medamullet's Avatar
Member
 
Joined: Sep 2015
Posts: 162
Likes: 11
2011 C63 AMG
My car does this when it's cold. Once the car warms up the light goes off. I'll check seatbelts and see if it fixes it. I tried to take it to the dealer but by the time I get there the car has fixed itself.... :unamused:
Reply
Old Apr 19, 2016 | 04:02 PM
  #33  
APatterson's Avatar
Newbie
 
Joined: Apr 2016
Posts: 1
Likes: 0
2008 Mercedes Benz C300
C300 SRS Control Unit Warning

Are everyone else still having problems with this srs unit belt buckle issue? Please let me know as I have an ongoing battle with Mercedes Benz regarding this and their refusal to acknowledge the issue... Please contact me at twistedesoterix@gmail.com I would like to know how many times have you had your vehicle repaired for this issue and if it resolves it or does the warning light still comes on. Have you paid, out of pocket, for the repair or was it taken care of under warranty.

Let's have them take care of this issue. As consumers, I feel that they should recognize and resolve the issue. Hopefully, if we can prove that it is not an isolated event, then we can make them pay attention.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Apr 19, 2016 | 05:48 PM
  #34  
FAneek's Avatar
Senior Member
 
Joined: Dec 2010
Posts: 336
Likes: 2
From: Southern California
08 MB C350
Took my car to the dealer for Air Bag Control Unit recall over the weekend and they also found a problem with the srs unit belt buckle (stored code found in the system?) They were going to charge me "discounted price" $390 for parts and labor...told em im not paying for that. The dealer called MBUSA and replaced it for free.

Last edited by FAneek; Apr 19, 2016 at 05:54 PM.
Reply
Old Oct 10, 2016 | 02:15 PM
  #35  
xthirdx's Avatar
Member
 
Joined: Jun 2016
Posts: 81
Likes: 1
2008 c300 4matic
Originally Posted by FAneek
Took my car to the dealer for Air Bag Control Unit recall over the weekend and they also found a problem with the srs unit belt buckle (stored code found in the system?) They were going to charge me "discounted price" $390 for parts and labor...told em im not paying for that. The dealer called MBUSA and replaced it for free.
which dealer did you go to? Are you from chicago?

Last edited by xthirdx; Oct 11, 2016 at 08:01 AM.
Reply
Old Oct 12, 2016 | 05:55 PM
  #36  
08c30's Avatar
Junior Member
 
Joined: Jun 2016
Posts: 59
Likes: 1
From: Bay Area
W204
Sounds like everyone covered the issue, but just to add my .02

I have a 2008

Same thing happened to me after I bought my vehicle, I had just detailed the whole car and moved the seat forward as far as it would go. I also might've knelt on the seat which can damage or mess up the seat sensor?

I brought it back to the dealer, he reset the SRS (which is different then the OBDII tool).

The alert came back on my drive home, which was frustrating. But next time I started the car, hasn't been on for 5 months.
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 08:57 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