Good one 
Car jerks when coming off WOT....?
Thread Starter
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,175
Likes: 19
From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
I am always in S and Sport2, this is a tranny thing for sure... got to be the T/C lock up / unlock speed... annoying. For a luxury car this is not really accceptable. I can expect it from a sportier car - but its going to give me friggin whiplash soon... should be smoother than this.
Ill try different tranny setting / T/C and see what she does... manual might be best bet here then maybe.
Ill try different tranny setting / T/C and see what she does... manual might be best bet here then maybe.
MBWorld Fanatic!
Joined: Jan 2007
Posts: 2,597
Likes: 19
From: Kuwait
CLS55 2006, CLS 63S 2015
I am always in S and Sport2, this is a tranny thing for sure... got to be the T/C lock up / unlock speed... annoying. For a luxury car this is not really accceptable. I can expect it from a sportier car - but its going to give me friggin whiplash soon... should be smoother than this.
Ill try different tranny setting / T/C and see what she does... manual might be best bet here then maybe.
Ill try different tranny setting / T/C and see what she does... manual might be best bet here then maybe.
secondly M mode should help...
Also think your self lucky..SMG is 10x worse with its normal everyday shifting, then our buck effect that has a cure.
Here is something that was rare though...
i had a hick up in S mode using the shifters to hold gear once, when i left it in gear lets says 2nd in S mode and slowly built up the revs, I held it for a bit, then slowed down a bit with out shifting. I did not up shift, but felt the car shift, similar to the feeling of a shift to a higher gear with out me doing it , and car display still red the gear i selected hmmm need more testing.
any one get this?
maybe its the same buck effect?
Thread Starter
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,175
Likes: 19
From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
when i left it in gear lets says 2nd in S mode and slowly built up the revs, I held it for a bit, then slowed down a bit with out shifting. I did not up shift, but felt the car shift, similar to the feeling of a shift to a higher gear with out me doing it , and car display still red the gear i selected hmmm need more testing.
MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
You ever try a battery disconnect just for the heck on it Steve?
Pain to reprogram radio/seat settings etc, but worth a try to see if it works.
Battery disconnected overnight just to be safe although I have done it for an hour and it works too.
Lemme know if you do it so I can shoot you over the things you need to do when starting her back up. Otherwise ESP light. They're real simple.
Jim
Pain to reprogram radio/seat settings etc, but worth a try to see if it works.
Battery disconnected overnight just to be safe although I have done it for an hour and it works too.
Lemme know if you do it so I can shoot you over the things you need to do when starting her back up. Otherwise ESP light. They're real simple.
Jim
Thread Starter
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,175
Likes: 19
From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
Actually had to do this a short while ago as battery was draining and needed to boost it up so I disconnected it all to charge it up. Wierd how car behaves... looses its marbles untill all close and open points are found...
Sunroof was particularly strange.... it would just continue to open and not stop at the limit point nearly damaged the unit. But a full close and reopen got its senses back.
And yes its still a bucking bronco... how I miss a stick shift...
Sunroof was particularly strange.... it would just continue to open and not stop at the limit point nearly damaged the unit. But a full close and reopen got its senses back.
And yes its still a bucking bronco... how I miss a stick shift...
Last edited by stevebez; Jul 25, 2008 at 09:58 AM.
Super Member
Joined: Jul 2003
Posts: 639
Likes: 33
From: London UK
E63s s213 2019 ,SOLD E63 Weistec, E55, C36
Steve, old thread i know, but did you ever get to the bottom of this? i had the same prob over the summer when in traffic, funnily enough going to lopez`s place lol. the beast is still under a tier 1 so want it sorted if its a component!
Super Member
Joined: Apr 2009
Posts: 552
Likes: 11
From: Chicago suburbs
2004 E55 AMG
When I had the stock pullry on the car I never felt the jerk. As soon as I got the 180 I felt it immediately. My belief is that the throttle snaps shut before the bypass valve can react, causing a surge. It's especially noticable at the end of the track or near the top of 1st-3rd gears. The solution is to let off gently. Unfortunately I don't think there is a way around it. It's just the way the throttle, S/C, and possibly the torque converter are managed, and the problem is exacerbated by larger pulleys. It feels just like my buddies Mustang did when he was experiencing compressor surge between shifts.
I know that the TB is on the suction side of the intake, which means it's not traditional surge(with pressurized air before the TB like in a centrifugal or turbo system), but it could be that the sudden vacuum created tries to stop the S/C rotors.
I know that the TB is on the suction side of the intake, which means it's not traditional surge(with pressurized air before the TB like in a centrifugal or turbo system), but it could be that the sudden vacuum created tries to stop the S/C rotors.
Last edited by izzyz28; Nov 27, 2010 at 10:37 PM.
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