Jerky transmission shifts
Thread Starter
Junior Member
Joined: Oct 2011
Posts: 57
Likes: 0
From: Great White North
CLS 500
Jerky transmission shifts
I'm cursed. My old car, an 04 c240, developed* the same problem as my new car, a 2006 cls500. I recently purchased the cls and it was incredibly smooth for the first little bit of ownership, no jerkiness/sluggishness whatsoever. I believe the problem occured after I was testing out how fast the car would go in touchshift and floored it from 1st gear in S-mode. Ever since then, the gear shifts have not been as smooth overall, but specifically when I'm going ~10 km/hr and slowing down naturally without my foot on the brake, it is especially jerky(3-2 and 2-1 shifts, as I usually drive in S-mode). The c240 had the same problem and similarly did not have it when I purchased the car.
Tried an ECU reset, I can't really tell if it even made a significant difference. My brake pads are due for replacement as well if that could have anything to do with it! I'm sure it could since the brakes have the SBC system.
I'm also aware that the two cars in question have different transmissions but the problem is nearly identical on both, albeit was worse on the c240.
If anyone can please help me or give me advice, the car is absolutely incredible other than this issue. What am I doing wrong and more importantly how can I correct this?
Tried an ECU reset, I can't really tell if it even made a significant difference. My brake pads are due for replacement as well if that could have anything to do with it! I'm sure it could since the brakes have the SBC system.
I'm also aware that the two cars in question have different transmissions but the problem is nearly identical on both, albeit was worse on the c240.
If anyone can please help me or give me advice, the car is absolutely incredible other than this issue. What am I doing wrong and more importantly how can I correct this?
Member
Joined: Dec 2005
Posts: 169
Likes: 0
From: Richmond B.C
06' CLS 500, DB9 (SOON)
My car the same issue the day i got my car brand new in 2006. from what i remembered, i found a code/update for the transmission jerk and told mercedes to enter the code/update. they didnt know what i was talking about that time but i just told them to do it. car was perfect since then. i am sure by now they have a software update that fixes the issue at mercedes.
Thread Starter
Junior Member
Joined: Oct 2011
Posts: 57
Likes: 0
From: Great White North
CLS 500
My car the same issue the day i got my car brand new in 2006. from what i remembered, i found a code/update for the transmission jerk and told mercedes to enter the code/update. they didnt know what i was talking about that time but i just told them to do it. car was perfect since then. i am sure by now they have a software update that fixes the issue at mercedes.
Out Of Control!!
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto
Junior Member
Joined: May 2011
Posts: 30
Likes: 1
Cls550
A jerky transmission is persistent with our cars. I had the ATF changed at 39k and adaptions reset twice. And most recently, the body valve was changed along with yet another adaption reset but still no luck. Im tired of going to the dealership for this issue...Any idea were this problem is coming from. It's really sad to see a tranny acting up so soon(50k miles).
