1st gear engine hesitation
06-27-2003, 05:58 PM
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e55
1st gear engine hesitation
has anyone experienced a hesitation, when taking of in (M mode) 1st gear. it doesn't need to be under heavy acceleration but almost seems like there is a fuel shut off for a quick instance or a bogging of the engine and then it takes off again. really strange. i have had this car now for a week and the car has been at the dealership for all but one day. today i got it back because of the pulling to the right issue but at least they fixed it. haven't owned a mercedes for at least 15 years and, so far, my impression of their quality control is anything but superlative. anyway, any help on this issue would be appreciated.
06-27-2003, 06:12 PM
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e55
1st gear hesitation
in response to magnetic clutch, why only first gear and this happens approximately midway thru the power curve. it doesn't occur right at take off but during acceleration??
06-27-2003, 06:52 PM
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E55, F550, S600 Ducati 999
The supercharger is only programmed to cut in under load, to minimise fuel consumption. This may not even be your issue, i am just letting you know that this could be a possible answer.
07-08-2003, 12:11 AM
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2003 E55 Black/Black
Re: 1st gear engine hesitation
Originally posted by birrclan
has anyone experienced a hesitation, when taking of in (M mode) 1st gear. it doesn't need to be under heavy acceleration but almost seems like there is a fuel shut off for a quick instance or a bogging of the engine and then it takes off again. really strange. i have had this car now for a week and the car has been at the dealership for all but one day. today i got it back because of the pulling to the right issue but at least they fixed it. haven't owned a mercedes for at least 15 years and, so far, my impression of their quality control is anything but superlative. anyway, any help on this issue would be appreciated.
has anyone experienced a hesitation, when taking of in (M mode) 1st gear. it doesn't need to be under heavy acceleration but almost seems like there is a fuel shut off for a quick instance or a bogging of the engine and then it takes off again. really strange. i have had this car now for a week and the car has been at the dealership for all but one day. today i got it back because of the pulling to the right issue but at least they fixed it. haven't owned a mercedes for at least 15 years and, so far, my impression of their quality control is anything but superlative. anyway, any help on this issue would be appreciated.
07-08-2003, 07:48 PM
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e55
engine hesitation
since no one at the dealership seem to know anything about the issue, or seemed to care for that matter, i asked to drive an s55 they had in inventory. same thing only more pronounced. may be inherent to the engine but it doesn't seem right. i did notice some other discussion under the topic of transmission issues/questions so it seems others are noticing the same. i haven't had time to followup with the dealer since i drove the s55 thinking they will just say it is normal. if you learn more, pls let me know.
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07-09-2003, 01:41 PM
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e55
engine hesitation
traction control-that's about as good as hearing a dealer tell one of us these cars pull to the right for safety reasons-to keep you from driving into oncoming cars! mine does it under the slightest amount of acceleration-no traction control involved. i will be anxious to hear the results of the "reboot"
07-12-2003, 01:25 PM
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2003 E55 Black/Black
My dealer has decided that the hesitation during acceleration is a characteristic of the car and feels that I should just accept it. He compared it to not liking the sound of the exhaust. 
I vigorously disagree and I am in the process of trying to get Mercedes to respond to the problem.
I vigorously disagree and I am in the process of trying to get Mercedes to respond to the problem.
07-19-2003, 08:39 PM
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E55, C32, ML320
I've noticed this on my C32 too. When I brought the issue up on another board, someone said that AMG/MB programmed this slight hesitation in to reduce the stress on the drivetrain. Not sure if that is accurate or not...
07-21-2003, 05:03 AM
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E55, F550, S600 Ducati 999
The June and August R&T issues both have E55 articles. The only reference to hesitation I can find is the hesitation of ESP cutting in on rapid take off in the August issue.
07-21-2003, 05:18 AM
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Thanks. The dealer I am talking to in the UK has suggested that I take the tech for a drive to show him the problem. This wasn't possible last time due to my wife dropping it off. Will let you know how I go.
07-21-2003, 07:15 PM
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Originally posted by stephens
The June and August R&T issues both have E55 articles. The only reference to hesitation I can find is the hesitation of ESP cutting in on rapid take off in the August issue.
The June and August R&T issues both have E55 articles. The only reference to hesitation I can find is the hesitation of ESP cutting in on rapid take off in the August issue.
Road and Track August issue page 65."When its time for the Mercedes turn on the start line, the traction control is also turned off following our standard procedures. Based on our experience , disabling the traction control allows the engine to get to its powerband sooner, albeit sacrificing some initial wheelspin for a better overall acceleration time. However in the case of the E55 AMG, the tremendous torque available on tap proved difficult to control without electronic assistance. Not helping is the lack of direct control over the engine torque output via the automatic transmission. Apply to little throttle and the Merc hesitates off the line. Just a smidgen deeper into the gas and the rear wheels light up instantly and leave a trail of tire smoke. Turn on the traction control and the E55 scoots off the line with just the right amount of tire squeal every time." The E55 beat out the 2003 Audi RS6 in this test.
07-21-2003, 07:50 PM
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e55
1st gear hesitation
this just isn't the circumstances under which i am finding the hesitation. under normal driving and moderate acceleration is when i notice the hesitation. if i step on it, i really don't feel it.
07-21-2003, 10:23 PM
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At what RPM does this occur? Is it RPM related? The C32 guys have been complaining of a 1500rpm bog issue for the last 2 years. It turns out that the Torque Converter is locked at 95% at 1500rpm causing the motor to slightly bog then lurch forward. AMG is aware of the problem and says it can be fixed in software, but no fix as of yet and maybe never.
Just a thought.
Just a thought.
08-19-2022, 07:03 PM
#22
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has anyone experienced a hesitation, when taking of in (M mode) 1st gear. it doesn't need to be under heavy acceleration but almost seems like there is a fuel shut off for a quick instance or a bogging of the engine and then it takes off again. really strange. i have had this car now for a week and the car has been at the dealership for all but one day. today i got it back because of the pulling to the right issue but at least they fixed it. haven't owned a mercedes for at least 15 years and, so far, my impression of their quality control is anything but superlative. anyway, any help on this issue would be appreciated.
08-19-2022, 11:12 PM
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Holy thread resurrection Batman!
Those of of us with a force-fed E-55 get to deal with certain realities.
Among them..... The supercharger is not always spinning at speed.... Boot it from an idle and you’ll hear a chirp from the clutch and often the belt as it gets it up to speed.... the supercharger is always spinning (clutched on) at engine speeds over 2500 or 3000 (correct me if I’m wrong) but is in bypass mode (second throttle plate does this) to reduce losses without a request to Oz for max attack. So your running up the freeway at 85 and give it some stick... S/C is already clutched on... second throttle plate closes and S/C makes full boost for maximum amusement.... but there is always a bit of a lag.... that’s what I will describe as a first world problem. Deal with it. There is less ‘lag’ then any turbo motor.
Those of of us with a force-fed E-55 get to deal with certain realities.
Among them..... The supercharger is not always spinning at speed.... Boot it from an idle and you’ll hear a chirp from the clutch and often the belt as it gets it up to speed.... the supercharger is always spinning (clutched on) at engine speeds over 2500 or 3000 (correct me if I’m wrong) but is in bypass mode (second throttle plate does this) to reduce losses without a request to Oz for max attack. So your running up the freeway at 85 and give it some stick... S/C is already clutched on... second throttle plate closes and S/C makes full boost for maximum amusement.... but there is always a bit of a lag.... that’s what I will describe as a first world problem. Deal with it. There is less ‘lag’ then any turbo motor.
