My E 55 Is Hesitating??? Help
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My E 55 Is Hesitating??? Help
I have an E 55 2005 which I have just purchased. I have taken it to the dealer because it hesitates from around 1500 rpm's to 2500 rpm's. If you step on it hard it wont hesitate. It feels like for a split second it's not getting gas or something. I have been four days with the dealer and they have found nothing. First they thought it was the transmission which was double engaging but they put a new software and it is still the same...then they changed a temperature censor and still nothing. Does any one have any idea what it could be!!! I am going nuts. THANKS FOR YOU HELP.
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Joined: Jul 2003
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From: Bay Area
03 E55
Originally Posted by ALEX_E55
I have an E 55 2005 which I have just purchased. I have taken it to the dealer because it hesitates from around 1500 rpm's to 2500 rpm's. If you step on it hard it wont hesitate. It feels like for a split second it's not getting gas or something. I have been four days with the dealer and they have found nothing. First they thought it was the transmission which was double engaging but they put a new software and it is still the same...then they changed a temperature censor and still nothing. Does any one have any idea what it could be!!! I am going nuts. THANKS FOR YOU HELP.
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Joined: May 2004
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From: Richmond Hill, Ontario
2003 E55 AMG
It's a slight "hesitation" that is followed or accompanied by the "chirp".
What you are experiencing is the supercharger electro-magnetic clutch engaging. This "hesitation" is only a millisecond delay and is normal. It is actuated by the ECU based on throttle position and how agressive the throttle is depressed.
What you are experiencing is the supercharger electro-magnetic clutch engaging. This "hesitation" is only a millisecond delay and is normal. It is actuated by the ECU based on throttle position and how agressive the throttle is depressed.
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Joined: May 2004
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From: USA
LS7 powered Corvette
The hesitation you are talking about on the 1-2 or any upshift for that matter is perfectly normal. It is called transmission overload protection. Briefly right before the upshift, timing will be retarded to slightly reduce the torque output and make the shift easier on the transmission.
The magnetic clutch can be fixed(the chirp).....
The magnetic clutch can be fixed(the chirp).....
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Joined: Jan 2004
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
My E55 seems to hesitate in the shift from 1st to 2nd the Evosport guys tell me this normal. (Damn I mentioned Evosport again) Wolf
Gonna be wild to ride in the new N/A without head bobbing from 1st to 2nd.
When I have fam in the car now, I just drive in "C" mode....doesn't do it as it starts in 2nd.
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thanks
Originally Posted by vrus
It's a slight "hesitation" that is followed or accompanied by the "chirp".
What you are experiencing is the supercharger electro-magnetic clutch engaging. This "hesitation" is only a millisecond delay and is normal. It is actuated by the ECU based on throttle position and how agressive the throttle is depressed.
What you are experiencing is the supercharger electro-magnetic clutch engaging. This "hesitation" is only a millisecond delay and is normal. It is actuated by the ECU based on throttle position and how agressive the throttle is depressed.
Just wanted to say thank you for your information. I went to the dealer and drove two other e 55 and they did the same thing and it's what you said. They even chirped a little when the supercharger was engaging and then it did the hesitation. I am happy now
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Joined: May 2004
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From: USA
LS7 powered Corvette
Originally Posted by ALEX_E55
Just wanted to say thank you for your information. I went to the dealer and drove two other e 55 and they did the same thing and it's what you said. They even chirped a little when the supercharger was engaging and then it did the hesitation. I am happy now
Super Member
Joined: Oct 2004
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From: New Jersey
2005 E55 Delivered 01/07/05
Originally Posted by Mr Wolf
My E55 seems to hesitate in the shift from 1st to 2nd the Evosport guys tell me this normal. (Damn I mentioned Evosport again) Wolf
Do those Evo Sport guys live in your house??? LOL
Super Member
Joined: Oct 2004
Posts: 587
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From: New Jersey
2005 E55 Delivered 01/07/05
Originally Posted by ALEX_E55
I have an E 55 2005 which I have just purchased. I have taken it to the dealer because it hesitates from around 1500 rpm's to 2500 rpm's. If you step on it hard it wont hesitate. It feels like for a split second it's not getting gas or something. I have been four days with the dealer and they have found nothing. First they thought it was the transmission which was double engaging but they put a new software and it is still the same...then they changed a temperature censor and still nothing. Does any one have any idea what it could be!!! I am going nuts. THANKS FOR YOU HELP.
I think it's because of the fly by wire throttle system.There will always be some delay. My 2005 Jeep Grand Cherokee with Hemi power has a similar system since that 3 valve Hemi motor was developed by Mercedes and it does the same exact thing.
Best Wishes,
