C55 1-2 shift hesitation
Thread Starter
MBWorld Fanatic!
Joined: Jun 2012
Posts: 1,155
Likes: 4
From: SF Bay Area
C55 AMG, 300D-T & Karmann Ghia
C55 1-2 shift hesitation
I've been looking around and have seen mentions of this rather violent hesitation that happens shifting out of first, but couldn't find a full thread. It seems that the car will do it more often if I start with full throttle and begin to lift before the shift. I can't get it to really do it on command, not that I want to- but its ugly when it happens.
Anyone know the cause? Remedies? I have a Eurocharged tune in the near future and am thinking about Sprint Booster- will those help/worsen this?
Thanks & Happy Monday!
Anyone know the cause? Remedies? I have a Eurocharged tune in the near future and am thinking about Sprint Booster- will those help/worsen this?
Thanks & Happy Monday!
Thread Starter
MBWorld Fanatic!
Joined: Jun 2012
Posts: 1,155
Likes: 4
From: SF Bay Area
C55 AMG, 300D-T & Karmann Ghia
Mine does this in S mode. It will buck hard like it hits a limiter before jumping to second gear. It seems to faceplant instead of shifting up, then will shift after it embarrasses me sufficiently. I feel that it almost never happens if I keep the car floored (rarely can do this without seriously topping speed limits) The shifts feel great at WOT - issue doesn't seem mechanical, 45k miles
MBWorld Fanatic!
Joined: Apr 2006
Posts: 2,259
Likes: 0
From: Chicago
Cee Fiddy Five
Similar thing, 1-2 intermittent jerkiness, but only after hard driving and then trying to drive like a sane person. If I drive normal for a while, it seems to go away...so my guess is software
Member
Joined: Mar 2010
Posts: 112
Likes: 0
From: Nothern VA
2007 E350 4 Matic Silver/Ash and 2005 C55 Black/Black
I have the same issue. I only use S mode, have yet to really try out M mode. But it does happen in S mode from time to time. Only when I am giving it full throttle and then backing off bit, it seems to hesitate to shift into second.
Thread Starter
MBWorld Fanatic!
Joined: Jun 2012
Posts: 1,155
Likes: 4
From: SF Bay Area
C55 AMG, 300D-T & Karmann Ghia
Well, I'm happy that my car isn't the only one. I read somewhere that Sprint Booster helped alleviate this. This seemed possible to me, since it micromanages throttle input and behavior. Can anyone confirm this?
I think I am going to install SBII regardless once I have my Eurocharged tune.
I think I am going to install SBII regardless once I have my Eurocharged tune.
Member
Joined: Mar 2010
Posts: 112
Likes: 0
From: Nothern VA
2007 E350 4 Matic Silver/Ash and 2005 C55 Black/Black
Please let me know the results, maybe I will try that out. It seems that when this happens it revs to the rev limiter and falls on it's face until it shifts to second.
Trending Topics
Member
Joined: Jun 2011
Posts: 226
Likes: 2
From: Canada
2017 G63
I created a thread awhile back in regards to the same problem. I also read a forum back in the early 2000's about the W210 55's doing the same thing. No one has really come up with a fix for this it will do it at full throttle in C mode or S mode doesnt matter what mode your in the car will kick down to first regardless. M mode will slam into the rev limiter and stay there until you shift it with the stick or the paddle. It might be early stages of a conductor plate failing, speed sensor not being able to read RPM signals I have had speed sensor codes come up in my car in the past...
MB World Stories
The Best of Mercedes & AMG
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
