C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

Diagnostic Code Format

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Mar 20, 2017 | 03:12 PM
  #1  
iamoenaj's Avatar
Thread Starter
Newbie
 
Joined: Mar 2017
Posts: 2
Likes: 0
2006 C-230
Question Diagnostic Code Format

Hello!

This is my first post. After searching for answers to my question, I couldn't find the information I was looking for. Sorry if this easily searched; I couldn't find anything.

Question: Is there any information returned from a diagnostic readout that attributes a code to the date it was first registered in the on-board computer?


Vehicle:
2006 Mercedes C-230
Reply
Old Mar 20, 2017 | 05:41 PM
  #2  
Alfadude's Avatar
Super Member
 
Joined: Sep 2015
Posts: 848
Likes: 87
From: Milwaukee, WI USA
2012 C300 4Matic
Try searching on the meaning of the code itself. It would be something like PXXXX or CXXXX. If you mean something else I am not very clear on what you are asking with the limited information you provided.

Plus, if your car is a 2006 model, then it is a W203. This is the W204 section. You might want to post in there to get the best responses to best help you.
Reply
Old Mar 21, 2017 | 02:13 AM
  #3  
IGB's Avatar
IGB
Super Member
 
Joined: Apr 2010
Posts: 705
Likes: 55
From: LA LA Land
'08 C300 MM Pano
Originally Posted by iamoenaj
Question: Is there any information returned from a diagnostic readout that attributes a code to the date it was first registered in the on-board computer?
My understanding is that yes, the date an OBD-II fault code was triggered is registered by ECU. It is also my understanding that the Mercedes Benz STAR Diagnostics system can retrieve such information. From experience, I can tell you that your average run of the mill code reader would not retrieve this information.

Some ECUs can store historical DTCs so when you take your car to the dealer (as an example), they can really tell how many times a particular code has been triggered, how many times it was cleared... etc..
Reply
Old Mar 21, 2017 | 04:18 PM
  #4  
iamoenaj's Avatar
Thread Starter
Newbie
 
Joined: Mar 2017
Posts: 2
Likes: 0
2006 C-230
Originally Posted by IGB
My understanding is that yes, the date an OBD-II fault code was triggered is registered by ECU. It is also my understanding that the Mercedes Benz STAR Diagnostics system can retrieve such information. From experience, I can tell you that your average run of the mill code reader would not retrieve this information.

Some ECUs can store historical DTCs so when you take your car to the dealer (as an example), they can really tell how many times a particular code has been triggered, how many times it was cleared... etc..

Awesome, thank you. This is exactly what I was looking for.


Originally Posted by Alfadude
Plus, if your car is a 2006 model, then it is a W203. This is the W204 section. You might want to post in there to get the best responses to best help you.
My mistake. I saw the "c230" in the description, but not the year range. Thank you for your response
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 09:33 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