Adding HOLD function to Pre-Facelift W204 (08-11)
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 23
Likes: 1
C200K
Adding HOLD function to Pre-Facelift W204 (08-11)
Does anyone how to add the brake "HOLD" function on pre-facelift w204 (08-11)?
I have retrofitted a color instrument cluster of 2013 FL W204 to my 2008 Pre-FL W204.
Got star C4 + Vediamo. What coding or hardware swap need to be done to get the HOLD function working? I made variant coding of the ABR module, and made HOLD to "ja". It didn't work.
Please help!!! Thanks a million!
I have retrofitted a color instrument cluster of 2013 FL W204 to my 2008 Pre-FL W204.
Got star C4 + Vediamo. What coding or hardware swap need to be done to get the HOLD function working? I made variant coding of the ABR module, and made HOLD to "ja". It didn't work.
Please help!!! Thanks a million!
MBWorld Fanatic!
Joined: Aug 2013
Posts: 1,364
Likes: 149
2012 C300 4MATIC Sport
That's not the case. The facelift W204 also have a mechanical parking brake. What the HOLD function does is that it applies the regular brakes for you. This is done through a signal sent to the master cylinder which commands it to apply the brakes without the foot depressing the brake pedal constantly. That's it. I highly doubt this is something that can be retrofitted this easily.
MBWorld Fanatic!
Joined: Feb 2006
Posts: 1,489
Likes: 110
From: WNY
2005 w203 C230
It’s all coding and input from the ABS sensors as far as I know. Broken by pressing a pedal.
I’d also love to try on my facelifted w203 with MTX.
I have the “upgraded” ESP module.
I’d also love to try on my facelifted w203 with MTX.
I have the “upgraded” ESP module.
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 23
Likes: 1
C200K
That's not the case. The facelift W204 also have a mechanical parking brake. What the HOLD function does is that it applies the regular brakes for you. This is done through a signal sent to the master cylinder which commands it to apply the brakes without the foot depressing the brake pedal constantly. That's it. I highly doubt this is something that can be retrofitted this easily.
Has anyone succeeded in retrofitting this brake HOLD function to the prefacelift W204? I need your help!!
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 23
Likes: 1
C200K
Hi, you changed the ESP module on your w203? To the one that support HOLD function from factory? Have you been able to get the HOLD function to work?
Trending Topics
MBWorld Fanatic!
Joined: Jan 2019
Posts: 3,906
Likes: 968
From: Melbourne, Australia
2013 C204 C250 Coupe
I wonder if it’s worth your time and effort to get the hold function working (even if it’s possible). I hardly use mine. If you live in a hilly area, then maybe that’s your motivation.
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
MBWorld Fanatic!
Joined: Feb 2006
Posts: 1,489
Likes: 110
From: WNY
2005 w203 C230
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 23
Likes: 1
C200K
For me, it's worth the time & efforts. I live in densely populated city with a lot of traffic lights and stop-n-go traffic. No worry with hilly areas as there is already hill start assist from factory in prefacelift w204.
Thread Starter
Junior Member
Joined: Oct 2008
Posts: 23
Likes: 1
C200K
Junior Member
Joined: Dec 2018
Posts: 15
Likes: 2
c300
Adding HOLD function to Pre-Facelift W204 (08-11)
Did anyone successfully enable brake hold function to PL W204?
I recently changed the hold function to "ja" and landcode to "ROW" in ABR module. I also change the landcode to "ROW" in CGW module. But the hold is still not enabled.
Thanks
I recently changed the hold function to "ja" and landcode to "ROW" in ABR module. I also change the landcode to "ROW" in CGW module. But the hold is still not enabled.
Thanks
Last edited by snap; Oct 11, 2020 at 01:43 PM.
Super Member
Joined: May 2010
Posts: 816
Likes: 21
2008 W204
The pre-facelift W204s and many other Mercedes 2000 and up have a hill start assist...meaning when you release the brake pedal to accelerate, the brakes hold for like 3 seconds so the car doesn't roll back until you accelerate. This is a classic Mercedes subtle feature and for a time pretty unique to the brand.
The brake HOLD feature is different though...if you just want to keep the car stopped at a stop light without pressing the brake pedal. I agree it seems like something that could be retrofitted entirely through programming...but knowing how complex these systems are chances are you need a hardware upgrade also. Who knows, something in the pre-facelift brake system may not be compatible with the HOLD programming.
The brake HOLD feature is different though...if you just want to keep the car stopped at a stop light without pressing the brake pedal. I agree it seems like something that could be retrofitted entirely through programming...but knowing how complex these systems are chances are you need a hardware upgrade also. Who knows, something in the pre-facelift brake system may not be compatible with the HOLD programming.
Last edited by LandSeaAir; Oct 10, 2020 at 04:17 AM.
Super Member
Joined: Nov 2008
Posts: 604
Likes: 29
From: SA
2008 C350-Sport-AMG-Active Agility Pack(Not reliable) +Izuzu KB6 3L(It seems Reliable)+Mazda
Hi, my car is 2008 C350 and has two type of hold functions, 1-The one if you stop at a hillside, it holds brake for seconds, you pull away, 2-I can apply braking with my speed control(Max) by adjusting it down, it labour against engine and apply brakes to quickly get you down to lower speed, I use this a lot-If I then step on the peddle it feels much stiffer and more agressive.
Junior Member
Joined: Dec 2018
Posts: 15
Likes: 2
c300
Hi, my car is 2008 C350 and has two type of hold functions, 1-The one if you stop at a hillside, it holds brake for seconds, you pull away, 2-I can apply braking with my speed control(Max) by adjusting it down, it labour against engine and apply brakes to quickly get you down to lower speed, I use this a lot-If I then step on the peddle it feels much stiffer and more agressive.
Last edited by snap; Oct 11, 2020 at 01:46 PM.
