Transmission jerking, felt like someone rear ended you
Thread Starter
Member
Joined: Jun 2008
Posts: 188
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From: Los Angeles, CA
2007 E550 Sports
Transmission jerking, felt like someone rear ended you
Guys please give me any insights if possible. My car awhile back during breaking at the stop sign gives me a strong jerking motion that felt like some one rear ended you. Most recently I felt the same thing repeately, but this time I am at bumper to bumper traffic, I would say about 5-15 miles speed. I took it to the dealer and they duplicated the issue and said they would replace the value body. However when they called me all they said was they updated my transmission software. But I have to say right after they updated the software my transmission does shift rather smoothly, even in the morning when my transmission thend to shift rough for the first two times. But after about a week now, my transmission starts to shift rough during morning again, so I am thinking when they did the software update, they must have reset the transmission that's why it's shifting smoothly? So far I don't have bumper to bumper traffic again, so I can't tell if my transmission is going to jerk or not, but can this be normal? and can this be cured by a software update? I have about 700miles left to 50,000 miles so I really need this thing to be fixed..
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From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
highly doubt it's glycol, his car is an 07. that thing stoppped after MY 04.
sounds like bad 2 > 1 shift. common on these 7 speed trannys. could be the valve body.
imagine, for the MY 2010 cars, MB puts the software so that when you start the car, the tranny defaults to C because so many people complained of the 2 > 1 shift and they couldn't fix it
sounds like bad 2 > 1 shift. common on these 7 speed trannys. could be the valve body.
imagine, for the MY 2010 cars, MB puts the software so that when you start the car, the tranny defaults to C because so many people complained of the 2 > 1 shift and they couldn't fix it
Thread Starter
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Joined: Jun 2008
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From: Los Angeles, CA
2007 E550 Sports
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Porsche 991S, Cayenne S, 1972 BMW 3.0CS E9 Coupe
highly doubt it's glycol, his car is an 07. that thing stoppped after MY 04.
sounds like bad 2 > 1 shift. common on these 7 speed trannys. could be the valve body.
imagine, for the MY 2010 cars, MB puts the software so that when you start the car, the tranny defaults to C because so many people complained of the 2 > 1 shift and they couldn't fix it
sounds like bad 2 > 1 shift. common on these 7 speed trannys. could be the valve body.
imagine, for the MY 2010 cars, MB puts the software so that when you start the car, the tranny defaults to C because so many people complained of the 2 > 1 shift and they couldn't fix it
And yeah, to the OP, Gaazmon's right the glycol issue won't/shouldn't happen in your 2007. The radiator vendors were changed. The valve body was the culprit in the 7-G tronics. Lean on the dealer more and try to get a VB replacement.
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From: Northern California
09' E350 AMG Sport, 09' C300, 03' Honda S2K
A lil jerkyness I find is common, especially during a downshift like during braking where the break assist would kick in using the engine rev for extra breaking power. I do have to agree that the S mode starting from 1st geat is not as smooth, But definitely smooth as butter when it is in Cmode. I just stick to C mode, shift alot smoother for me and besides if you punch on gas even in Cmode, it still starts out on 1st gear.
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2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
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From: Northern California
09' E350 AMG Sport, 09' C300, 03' Honda S2K
My 1-2nd shift in S mode, seems pretty smooth, but there are times where it is a bit jerky. Definitely not harsh like someone rear ended me though. The 7-G tanny is by far sooooothest than any tranny I experience with.
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From: Ft. Lauderdale Area, USA
2015 ML 350
Lean on your dealer for a cure, MB really doesn't have a 100% cure for this so they don't like throwing money at it. In time you'll get used to it anyway.
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2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
man, i had a 2010 GLK350 as a loaner once and EVERYTIME it went from 2 > 1 the thing just threw me back.
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Porsche 991S, Cayenne S, 1972 BMW 3.0CS E9 Coupe
p.s., where have you been? They don't have internet access in jail? LOL.
Thread Starter
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Joined: Jun 2008
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From: Los Angeles, CA
2007 E550 Sports
Thanks for all the inputs. But I forgot to mention, the jerkness that I felt actually was in the C mode. and only happends during bumper to bumper traffic. So I am not sure if this involves the 1st gear though. I am actually suprised that no one experienced the problem like I did, which is rather scary because you look at the back of the mirror only to find out that the car behind you is at least 3 car length away from you. I will need to take it back to the dealer again and see what they are going to do, but most likly they will have their foreman test drive with me again, and they may or may not feel it that's what sucks about this. If they can't feel it, they don't want to help me. 
BTW, if the problem doesn't get fixed will this damage my transmission in the long run? Because this seems to me has gotten worse and worse over time.
BTW, if the problem doesn't get fixed will this damage my transmission in the long run? Because this seems to me has gotten worse and worse over time.
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From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
LOL 
. oh man i knew someone would mention me being gone. ya, they sent me to some place on some island in the Caribbean or something, the place started with a G i think 
nah, i was away at a camp i do volunteer work for 1 week out of the summer up in the mountains. and then there was some virus that got around the place and about 30% of us up there got it so i was sick for like a week when i got back. it's good to be back on the boards
. oh man i knew someone would mention me being gone. ya, they sent me to some place on some island in the Caribbean or something, the place started with a G i think nah, i was away at a camp i do volunteer work for 1 week out of the summer up in the mountains. and then there was some virus that got around the place and about 30% of us up there got it so i was sick for like a week when i got back. it's good to be back on the boards
MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,085
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From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
Thanks for all the inputs. But I forgot to mention, the jerkness that I felt actually was in the C mode. and only happends during bumper to bumper traffic. So I am not sure if this involves the 1st gear though. I am actually suprised that no one experienced the problem like I did, which is rather scary because you look at the back of the mirror only to find out that the car behind you is at least 3 car length away from you. I will need to take it back to the dealer again and see what they are going to do, but most likly they will have their foreman test drive with me again, and they may or may not feel it that's what sucks about this. If they can't feel it, they don't want to help me.
BTW, if the problem doesn't get fixed will this damage my transmission in the long run? Because this seems to me has gotten worse and worse over time.
BTW, if the problem doesn't get fixed will this damage my transmission in the long run? Because this seems to me has gotten worse and worse over time.
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From: Milton/Westport, MA USA
me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
I had the same issue in my CLK and posted about it HERE. Brought it to dealer before warranty was up and a long list of screws, seals and rings got replaced, and, per repair receipt: "B1 and B3 clips had popped out; remove and replace clip and spring on B3 assembly, remove and replace B1 assembly with K1 replacement per DTB P B 27.60/92".
Thread Starter
Member
Joined: Jun 2008
Posts: 188
Likes: 1
From: Los Angeles, CA
2007 E550 Sports
I had the same issue in my CLK and posted about it HERE. Brought it to dealer before warranty was up and a long list of screws, seals and rings got replaced, and, per repair receipt: "B1 and B3 clips had popped out; remove and replace clip and spring on B3 assembly, remove and replace B1 assembly with K1 replacement per DTB P B 27.60/92".
MBWorld Fanatic!
Joined: Feb 2004
Posts: 3,122
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From: Milton/Westport, MA USA
me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
I'm good since then. PM me your email and I'll send you a PDF of my WO from dealership. Heaven knows what it'll cost later!
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From: SWFL
E55, E320 CDI , CLA250, Jag XJ Supersport
I just picked my car up after getting this fixed. SA says they replaced a snap-ring. Car seems to be good now.
About two weeks ago, I noticed the 2-1 shift became noticably harsh. My SA noticed it too when I was in for service and offered to take care of it under CPO warranty.
He said it would only get worse with time if ignored.
About two weeks ago, I noticed the 2-1 shift became noticably harsh. My SA noticed it too when I was in for service and offered to take care of it under CPO warranty.
He said it would only get worse with time if ignored.
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From: Milton/Westport, MA USA
me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
Sorry it took me so long to scan and post this. See attached for the laundry list of clips, screws, and other parts they replaced to fix this condition.
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GLS450
I did notice an adjustment made by the dealer though. Now when I come to a complete stop the MPG does not display 0 immediately. I come to a complete stop and the MPG is slightly behind showing 1 then 0. I think they did this to cover up the slight bump I feel just before stopping because this no longer occurs. But downshifting from 2 to 1 is still harse. It's a little better when set to C (comfort) instead of S (sport).
I read somewhere that the newer models still have this problem and Mercedes automatically sets S (sport) to C (comfort) once the car is started.
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GLS450
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2003 E500 Benz & 2015 BMW M235ix
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2009 E350 Sport
LOL . oh man i knew someone would mention me being gone. ya, they sent me to some place on some island in the Caribbean or something, the place started with a G i think
nah, i was away at a camp i do volunteer work for 1 week out of the summer up in the mountains. and then there was some virus that got around the place and about 30% of us up there got it so i was sick for like a week when i got back. it's good to be back on the boards
. oh man i knew someone would mention me being gone. ya, they sent me to some place on some island in the Caribbean or something, the place started with a G i think nah, i was away at a camp i do volunteer work for 1 week out of the summer up in the mountains. and then there was some virus that got around the place and about 30% of us up there got it so i was sick for like a week when i got back. it's good to be back on the boards
