Flooring an E55
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E55
Flooring an E55
Few question here that needs some answers.
1. When you floor the gas pedal do you have a button on the floor that sometimes holds it in gear longer or downshifts the car down 2 gears.
2. When you drag race from a rolling, do you hit the rev limiter on 1st gear? I know I do. How do you avoid that, cause when I'm pretty sure you loose alot of time.
1. When you floor the gas pedal do you have a button on the floor that sometimes holds it in gear longer or downshifts the car down 2 gears.
2. When you drag race from a rolling, do you hit the rev limiter on 1st gear? I know I do. How do you avoid that, cause when I'm pretty sure you loose alot of time.
Last edited by Wreck; Oct 28, 2002 at 03:42 PM.
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2024 S580 | 2024 Escalade ESV Sport Plat | 2022 X5M Competition
1. I think all mercedes autos have that "button" or kick-down at the bottom of the accelerator. When you floor it and hit the button, the car downshifts into the highest possible gear.
2. You should not be hitting the rev-limiter. The car should change gears into second before this would happen. I believe even in the "tiptronic" mode, it shifts before the limiter.
2. You should not be hitting the rev-limiter. The car should change gears into second before this would happen. I believe even in the "tiptronic" mode, it shifts before the limiter.
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E55
2. You should not be hitting the rev-limiter. The car should change gears into second before this would happen. I believe even in the "tiptronic" mode, it shifts before the limiter.
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E55, F550, S600 Ducati 999
Wreck
I have the same problem sometimes too. From memory it happens when you have been driving fairly sedately then floor it. It appears that the tranny is shifting too slowly and gets caught out by the rev limiter.
I have the same problem sometimes too. From memory it happens when you have been driving fairly sedately then floor it. It appears that the tranny is shifting too slowly and gets caught out by the rev limiter.
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E55
Originally posted by stephens
Wreck
I have the same problem sometimes too. From memory it happens when you have been driving fairly sedately then floor it. It appears that the tranny is shifting too slowly and gets caught out by the rev limiter.
Wreck
I have the same problem sometimes too. From memory it happens when you have been driving fairly sedately then floor it. It appears that the tranny is shifting too slowly and gets caught out by the rev limiter.
I guess that usually happens if I am driving at 30 or below or 40 and above, then punching the gas to feel the G's. Car feels so good when you do that.
I guess I'll check to see if I have that problem from a dead stop.
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2024 S580 | 2024 Escalade ESV Sport Plat | 2022 X5M Competition
Hmm, yeah that doesn't sound too good... especially for a performance oriented car like the E55.
I have driven an E55 before but I think it was a 2000. Also, our 2001 S600 doesn't do anything like that. If I floor it, from any speed, it accelerates hard, then shifts to second with no hesitation.
If it's still under warranty you should take it in and have the service tech ride while you show him what happens.
I have driven an E55 before but I think it was a 2000. Also, our 2001 S600 doesn't do anything like that. If I floor it, from any speed, it accelerates hard, then shifts to second with no hesitation.
If it's still under warranty you should take it in and have the service tech ride while you show him what happens.
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Volvo V90 CC
Sometimes I do hit the rev limiter from a roll start ~28mph
Some other times it doesn't hit it, but I still don't know why.
It is not the fact that you've been driving the car hard or not, it has hit the rev limiter even when I've been driving the car hard fo a couple of days (I should really say weeks
)
It doesn't do it from a dead stop, ever.
Next time I take the car to the dealer I'll have them check into that, and may be I'll convince them to change the settings for higher octane (advance timing) and remove the rev limiter
Some other times it doesn't hit it, but I still don't know why.
It is not the fact that you've been driving the car hard or not, it has hit the rev limiter even when I've been driving the car hard fo a couple of days (I should really say weeks
)It doesn't do it from a dead stop, ever.
Next time I take the car to the dealer I'll have them check into that, and may be I'll convince them to change the settings for higher octane (advance timing) and remove the rev limiter
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From: Dallas
2001 S600 Black/Black
What's this about advance timing? Have there been other posts on this I can read up on?
The rev limiter I don't get - is this delay caused by a "predictive" rev limiter, based on what "would" happen if it did kick down 2 gears? Why doesn't it just go down ONE gear then? I don't understand the delay. I have experienced this too - it feels like it can't decide which gear to choose.
E55bliss
The rev limiter I don't get - is this delay caused by a "predictive" rev limiter, based on what "would" happen if it did kick down 2 gears? Why doesn't it just go down ONE gear then? I don't understand the delay. I have experienced this too - it feels like it can't decide which gear to choose.
E55bliss
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From: Chicago
Volvo V90 CC
Originally posted by e55bliss
What's this about advance timing? Have there been other posts on this I can read up on?
The rev limiter I don't get - is this delay caused by a "predictive" rev limiter, based on what "would" happen if it did kick down 2 gears? Why doesn't it just go down ONE gear then? I don't understand the delay. I have experienced this too - it feels like it can't decide which gear to choose.
E55bliss
What's this about advance timing? Have there been other posts on this I can read up on?
The rev limiter I don't get - is this delay caused by a "predictive" rev limiter, based on what "would" happen if it did kick down 2 gears? Why doesn't it just go down ONE gear then? I don't understand the delay. I have experienced this too - it feels like it can't decide which gear to choose.
E55bliss
my service advisor was tempted by the bribe I offered, but he said the mechanic was too scared to do it, since they shouldn't do it, damn it!
May be you have better friends at your dealer, and if they don't charge you, let me in for service there too
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From: Dallas
2001 S600 Black/Black
I asked at my dealer about removing the limiter and about mods affecting the warranty - both were negative answers.
I wanted to remove the speed limiter and lower by 1-2", they said they cannot do it, and lowering the suspension might void the warranty on any fixes needed that could remotely be affected by the modification.
E55bliss
I wanted to remove the speed limiter and lower by 1-2", they said they cannot do it, and lowering the suspension might void the warranty on any fixes needed that could remotely be affected by the modification.
E55bliss
Out Of Control!!
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From: Chicago
Volvo V90 CC
Originally posted by e55bliss
I asked at my dealer about removing the limiter and about mods affecting the warranty - both were negative answers.
I wanted to remove the speed limiter and lower by 1-2", they said they cannot do it, and lowering the suspension might void the warranty on any fixes needed that could remotely be affected by the modification.
E55bliss
I asked at my dealer about removing the limiter and about mods affecting the warranty - both were negative answers.
I wanted to remove the speed limiter and lower by 1-2", they said they cannot do it, and lowering the suspension might void the warranty on any fixes needed that could remotely be affected by the modification.
E55bliss
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From: Dallas
2001 S600 Black/Black
Octane, Fuel Grade
Also - I made friends with one of the experts at the dealer, seems to know a great deal about the AMG. He went on for 30 minutes talking about the octane setting, and how it was not necessary at all, in fact he was recommending using a medium grade unleaded with less alchohol, he said it actually ignites faster and is better for performance. I know this seems contradictory, but I received the same advice for my motorcycle from a mechanic.
E55Bliss
E55Bliss
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From: Dallas
2001 S600 Black/Black
He recommended 89. I didn't catch all the details, but he said you should notice a slight difference in punch using 89!
I'm on my first tank of it now, will let you know what I find...
I'm on my first tank of it now, will let you know what I find...
Out Of Control!!
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From: Chicago
Volvo V90 CC
Originally posted by e55bliss
He recommended 89. I didn't catch all the details, but he said you should notice a slight difference in punch using 89!
I'm on my first tank of it now, will let you know what I find...
He recommended 89. I didn't catch all the details, but he said you should notice a slight difference in punch using 89!
I'm on my first tank of it now, will let you know what I find...
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From: Melbourne, Australia
E55, F550, S600 Ducati 999
The rev limiter problem is the adaptive program for the transmission getting confused. There is a replacement transmission ECU available to resolve this. The issue of fuel octane is a little more complicated.
The car is already set for maximum advance on the fuel settings from the factory. All other settings are for reduced quality fuel. The octane numbers listed in the ECU are Euro RON settings, not US PON.
I am not sure whether using a lower octane fuel could improve performance or not. As long as the car is not detonating, at which point the ECU will automatically retard the timing and reduce power, it might actually work. Co-incidentally my car has been re-calibrated (using a piggy back computer tuned on a dyno) for Euro 98 octane (same as US 93 octane) fuel. I recently filled my car with 96 octane (same as US 91 octane) fuel and on the G-tech seems to run 0.1 -0.2 sec faster to 100kmh. This may just be different ambient temps etc however.
The car is already set for maximum advance on the fuel settings from the factory. All other settings are for reduced quality fuel. The octane numbers listed in the ECU are Euro RON settings, not US PON.
I am not sure whether using a lower octane fuel could improve performance or not. As long as the car is not detonating, at which point the ECU will automatically retard the timing and reduce power, it might actually work. Co-incidentally my car has been re-calibrated (using a piggy back computer tuned on a dyno) for Euro 98 octane (same as US 93 octane) fuel. I recently filled my car with 96 octane (same as US 91 octane) fuel and on the G-tech seems to run 0.1 -0.2 sec faster to 100kmh. This may just be different ambient temps etc however.
