Howdy folks, I'm wondering if the ECU tunes from the various companies will make this unbearable throttle delay disappear? This is bothering me to the point where I am considering doing this just to solve this issue. MB will not solve it with any kind of 'software update', it appears to be a systematic approach they have for this, for some reason I don't understand.


I'm happy with the car otherwise, very much so. There must be a way to fix this, and I must not be the only person to be noticing it!! Please do let me know if you also notice this, and for those with the tunes, what has been the improvement?


Of course, any opinions on the tuning companies would be appreciated!


Thanks for helping,


Aiden

 

there is this device ive been hearing about - SPEED PEDAL or pedalbox i believe. several people have installed and say it works . apparently it virtually eliminates throttle delay.

 

i'm not too happy with my pedalbox, thinking about returning back, i feel like no improvements none wht so ever, i'll uninstall it and see if im gonna feel any difference...!!!

 

try a sprintbooster..

 

Though not on my '12 CLS63, I installed the Pedal Box on my '14 SL550 and it was like day and night, wow, what a difference, virtually eliminated turbo delay, however must have it on the aggressive setting otherwise has no noticeable effect

Its quick, easy and cheap to install, I'd try it and see what you think, remember to use the aggressive setting

 

OK, just checked out their website. I have to say, I never heard of it before, and it's interesting. What is interesting to me is why such a thing is necessary in the first place! (RANTING NOW!) Who on earth writes software and actually decides that the action taken by the set of programs ('the car') should happen at a different point in time from the request of that action!!! This bugs me to no end, an I have no rational explanation for what this ever happened in the first place. You know, before 'drive by wire' throttle linkages and mechanical control worked to give an instantaneous response. With the speed electrons travel, the time something should happen should be approximately equal to the time the request for that something is made, within a few milliseconds.


If anybody out there has information that explains why this situation has been created, I'd love to hear it! That would help me!!


In any event, now I've got to decide on the Eurocharged tune or this device...


AND, your help is appreciated! Now I know more than I did before I asked the question!


Aiden

 

Also, Nanook, I just looked at the sprintbooster website. Of course if there's one of anything, there must be some competition! Good!


Thanks,


Aiden

 

So throttle response is a software program which is set by the factory for the average driver, however that program can be changed (hence the Pedal Box) and made more aggressive.

 

My BMW E60 550 had the same issue and the Sprintbooster made it much better. You will have to relearn how to step on the gas to avoid bucking the car from a start it is makes the gas pedal much more hair-trigger.

 

Good to know these things actually work! I suppose they must 're-map' the way the throttle engages, meaning that actual throttle opening for any given pedal position is more (if that's the right word). I'm actually ok with the linear fashion in which the throttle works, I just don't like the time delay. If I have to better modulate, that's ok too, as long it does something at the time I tell it! Funny me, I still think I'm in control of this thing!


Thanks,


Aiden

 

All that is really happening is they are changing throttle input sensitivity...Go get a tune on the car instead of this.

 

My ecu tune took care of part of the delay but it's nowhere close to being immediate. Plus the ecu is adaptive and after a couple of weeks of city driving, it's getting laid back. Disconnecting the battery resets the ecu and the fun comes back...for a couple of weeks. I totally understand your frustration. My CLS will be gone by spring time and my top criteria when I chose my new car (Lotus Evora S) included immediate throttle response, no turbo and super road feel.

You may want to try disconnecting your battery for a couple of hours to allow your ECU to reset. You may see a difference that will last for a week or two.

I also tend to drive it in manual mode shifting above 4,000 rpm which gives me a much better throttle response.

All these tricks will help you deal with the slow response but nothing will really fix it I'm afraid. Hope it helps.

 

Thanks, that does help. I'll chat a little more with the tuner guy and see what they think they can do with it as well. Tough going to try to fix this!


Thanks guys, all appreciated!


Aiden

 

Bringing this thread back up since I had a close call with almost getting side swiped, punched the throttle and felt like an eternal 2 seconds before the car jumped out of the way. I was livid. My CLS55 was instantaneous, to the point of scaring myself when just slightly over did the gas pedal. I had a Eurocharge tune on it, but I don't remember how the response was before the tune. So, my question is, anyone with a tune, did it remove the lag on this M157 engine? and what tune did you use? I see Kleeman above, but not much diff? Any other experience? I know I don't want to use the Pedal box thing or the sprint booster, which I have on my mini and it barely made a difference. I'm hoping for a good recommendation for a tune, someone who has it and has noticed a big difference. It was just an annoyance, but this close call is the last straw.

 

I feel for you. I'm the same, desperately frustrated. I had no inkling the car would be like this. Who could ever guess a performance car would have software loaded on it like this? I agree, in certain traffic situations it is so bad as to be a safety risk. I've never experienced it before, that's for sure. I guess all the rest of the guys here must just suck it up and get used to it. I may never be able to do that...


This is a real pity, because the rest of the car is great.


AMG-----------where are you guys on this??

 

A couple of months before parting ways with the cls, I had an issue with a spark plug and the dealer changed them all and reflashed the ecu "just to be on the safe side" as they said. So for the last 2 months, I drove the car stock. I wasn't impressed by the throttle response with the tune but without the tune, it was really bad. After driving the car for 3 years with a tune, I couldn't believe how laid back the car was without the tune. So to answer your question, a tune will improve the response significantly. It will go from bad to acceptable but it will never be "responsive".

 

Thanks for that, best feedback so far, based on the change from stock--tuned--stock again. I keep thinking they will eventually release a software update to take care of this, however I continue to be proven wrong! Also, it seems if the tuners can make it a little better, it is curious that they cannot fix it completely...


Thanks again,


Aiden

 

Looks like I'll be getting a tune. I'd like to hear from someone who has an AMS and eurocharged tune, If they've experienced a marked difference.

 

Is renntech tune the best route to go? I have a 2014 all wheel drive amg...

 

Live tuning would be the best, naturally. But if not I suggest AMS...

 

To speak to the poster earlier that said that a tune will help, I concur. I just got the Eurocharged tune and feel like the delay has almost entirely gone away. Very pleased with the results. The throttle is very sensitive now. Took some getting used to the first few days.

 

That's what I was hoping to hear. Did you get the discounted rate? They had mentioned half off normal on another thread. I was going to pull the trigger, but wanted to hear input from others with different tunes. Mainly what would effect the lag. This is the response I was hoping for. Thanks much for the input.

 

People with mct transmissions ... Some lag cannot be dialed out... We talked about this extensively on e63 forums

https://mbworld.org/forums/w212-amg/...-mct-e63s.html

 

Talk to Jerry. He is a great guy. He will take care of you. Tell him Austin sent you. He's on vacation until Sunday but I'm sure he will get back to you on Monday. You can contact him through the Eurocharged website.

 

I'm new to the CLS63 but some of the lag is not gear box. I tried driving at constant speed low in the rev range then gave the accelerator a quick jab (rapid depression most of the way down then pull up again, lasting under 0.5sec). The car ignores it! I took my forester out and did the same thing and I get a blip in the revs, a jolt, and an audible response. I think in that scenario it wouldn't be trying to change gear, just ignoring the input, presumably for fuel consumption??