Delayed acceleration on an E550
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Tesla Model S P100D
Delayed acceleration on an E550
So I was enjoying a nice Sunday afternoon drive yesterday on my E550 and to clean out some carbon, I wanted to do a little bit of full throttle kick-down acceleration. I was driving about 25 when I engaged it but distinctly remember there was a 1-2 second pause (seemed longer but that's probably what it was) from when I engaged full kick down and the car accelerated. Now the car did accelerate as I expected but the delay surprised me. The car was in comfort mode, could that have anything to do with it? Also I drive in a "normal" manner 90% of the time and rarely tap the power at my disposal so was the car just taking it easy because that's how I usually drive? Just thought I'd check because I thought no matter the electronic throttle settings, when kick-down is engaged the car delivers maximum acceleration instantly (and this wasn't quite the case...).
Last edited by WEBSRFR; Apr 11, 2011 at 03:39 PM.
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From: Irvine, CA
2008 E550, 2012 GL450, 2014 GLK350, 2015 S550, 2020 GLC350e
Take it out of comfort mode .. Sport mode in my 08 E550 pins you to your seat. Throttle is more responsive.
Finally, get a Sprintbooster. The MB throttle by default has some lag built into it.
Finally, get a Sprintbooster. The MB throttle by default has some lag built into it.
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Tesla Model S P100D
But the point is I prefer comfort mode for the majority of my driving. I don't want to constantly unleash all that the E550 has to offer on the busy streets of DC! However when I want quick acceleration I thought kick down overrides everything and is supposed to deliver maximum acceleration. I was just checking to see if this is normal behavior as I thought with a wide open throttle it did not matter if I the car was on C or S but would be good to know for sure.
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From: Canada
2007 E550, 2007 GL450
But the point is I prefer comfort mode for the majority of my driving. I don't want to constantly unleash all that the E550 has to offer on the busy streets of DC! However when I want quick acceleration I thought kick down overrides everything and is supposed to deliver maximum acceleration. I was just checking to see if this is normal behavior as I thought with a wide open throttle it did not matter if I the car was on C or S but would be good to know for sure.
While I have enjoyed the 722.6 in both my previous E430 and my current E550, I have found that it seems to have its own mind at times. No real rhyme or reason, it just acts up once in a while. On the plus side, it has been proven to be a robust transmission and we've had a few in the family at or above the 200,000 mark and going strong. The 7-speed in my GL450 shifts so smoothly it's scary. You almost forget about RPMs to be honest.
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From: Canada
2007 E550, 2007 GL450
p.s. what I sometimes do with busy city driving when I want to be sure I have that instant acceleration on tap is to use the manual shift function and leave it at '3'. That way, it's always ready to blast when needed...
Thread Starter
MBWorld Fanatic!
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Tesla Model S P100D
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From: Irvine, CA
2008 E550, 2012 GL450, 2014 GLK350, 2015 S550, 2020 GLC350e
websrfr, do you have paddle shifters? You can use those as well.
also, another trick is .. hold "downshift" on either the paddles or the "stick" for 3 seconds, it will choose the optimal gear for you and you'll take off like a rocket.
also, another trick is .. hold "downshift" on either the paddles or the "stick" for 3 seconds, it will choose the optimal gear for you and you'll take off like a rocket.
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From: Connecticut
2007 E550 4-Matic
I'm pretty sure the manual refers to S as "Standard Mode" and C as "Comfort Mode" and suggests that the car be normally driven in "S" mode. Comfort starts the car in 2nd gear.
I think it's personal preference which mode you drive in.
You could also try resetting the ECU..
https://mbworld.org/forums/w211-amg/...set-works.html
I think it's personal preference which mode you drive in.
You could also try resetting the ECU..
https://mbworld.org/forums/w211-amg/...set-works.html
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2007 E550 4-Matic
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From: Exit 16E
07 E350 4Matic / Sport with P1
You will still experience a little lag when you begin pressure on the accelerator. It's a result of "Drive By Wire" technology. While using "S" mode makes the car a little peppier, installation of a Sprint Booster (see the above Sponsor tag) will eliminate the delayed response of the engine when accelerating.
