HELP!!!! Throttle reset jammed my car!!!
I trust you are the best concerning MB so I am explaining the problem I have.
I bought a C32 k amg on july the 22nd.
Few days later I got the ECU chipped, full de-limit, I was chasing 185mph when I got stuck in traffic at 170mph. Only to let you know that the ECU chipped worked properly and that 155mph limit was a thing of the past.
Then disaster came along: I read the "throttle reset" method on this forum, I gave it a try because I experience delay in the kick down myself (and lazyness from the throttle in general).
First I was very glad about it: the car was really really more responsive to any throttle input, a real joy. I only cruised around my hometown, no problem at all.
Today problems came along: got into the highway, gearbox in "D" mode, full throttle, a blast until I hit 135mph, then the engine got into recovery, and no matter how hard I pushed the throttle down, I wasn't allowed to rev over 5000rpm. That was not the only problem: from a standing still giving full throttle in the "D" or in the sequential mode few seconds after hitting third gear the acceleration was "cut out" and once again I wasn't free to rev any higher. Another problem: sequential mode, second gear: full throttle, third gear, full throttle, just an instant into fourth and I am cut out again.
So the question is: WHAT THE HELL IS HAPPENING TO MY CAR AND HOW THE HELL CAN I FIX IT????????
I am positive problems I experienced are not related to the chipping of the car, I got the job done by the best guys from mainland europe and, as I told before, everything was cool before I reset the throttle.
Please guys help me out here: there must be a way to fix everything, I am ready to forget about a more responsive throttle in exchange of my car just how it was before this mess happened.
Thanks to everybody for listening and helping.
Ciao
Andras
I trust you are the best concerning MB so I am explaining the problem I have.
I bought a C32 k amg on july the 22nd.
Few days later I got the ECU chipped, full de-limit, I was chasing 185mph when I got stuck in traffic at 170mph. Only to let you know that the ECU chipped worked properly and that 155mph limit was a thing of the past.
Then disaster came along: I read the "throttle reset" method on this forum, I gave it a try because I experience delay in the kick down myself (and lazyness from the throttle in general).
First I was very glad about it: the car was really really more responsive to any throttle input, a real joy. I only cruised around my hometown, no problem at all.
Today problems came along: got into the highway, gearbox in "D" mode, full throttle, a blast until I hit 135mph, then the engine got into recovery, and no matter how hard I pushed the throttle down, I wasn't allowed to rev over 5000rpm. That was not the only problem: from a standing still giving full throttle in the "D" or in the sequential mode few seconds after hitting third gear the acceleration was "cut out" and once again I wasn't free to rev any higher. Another problem: sequential mode, second gear: full throttle, third gear, full throttle, just an instant into fourth and I am cut out again.
So the question is: WHAT THE HELL IS HAPPENING TO MY CAR AND HOW THE HELL CAN I FIX IT????????
I am positive problems I experienced are not related to the chipping of the car, I got the job done by the best guys from mainland europe and, as I told before, everything was cool before I reset the throttle.
Please guys help me out here: there must be a way to fix everything, I am ready to forget about a more responsive throttle in exchange of my car just how it was before this mess happened.
Thanks to everybody for listening and helping.
Ciao
Andras
Step one is to have someone read the codes. Maybe the guys from "mainland europe" could read the codes; or you may need to visit a dealer. I'd bet a few lunches that the problem is unrelated to the throttle adaptation. It might be the dreaded intercooler pump failure.
BTW, what kind of ECU work did you have done?
Last edited by Fifth Ring; Aug 18, 2006 at 05:14 PM.
thanks for the answer.
The kind of ECU job I had for my car was kind of "usual" for all my cars: using the original codes they have been reprogrammed in order to gain +16hp and +50nm with full delimit.
I am SURE the ECU reprogramming was ok because, as I said in my first post, I tested that at 270kmh (170mph) with no problem, nothing like what I am experiencing now.
I am also sure that somehow the throttle reset got into some kind of fight with either the electronic management of the NAG gearbox or the ECU reprogramming itself.
I don't think there's any kind of intercooler failure, it would be notified by the car's computer (since it displays minor failures like plate's lamps I don't believe an intercooler might have any kind of failure without the system noticing that with a message on the display...)
Back to my first question: let's just say I want to erase the "throttle reset": how about unplug the battery of the car for few hours? Would it erase the "mistakes" recorded previously and registered by the ECU?
Thx
Can I point you to this thread:
https://mbworld.org/forums/w211-amg/118154-another-coolant-water-pump-failure-writeup-inside.html
Take note of this: "DME will store codes for pump failures, however only a shop with STAR diagnostics can read them." So your "mainland europe" guy might not be able to pull the codes out.
Can I point you to this thread:
https://mbworld.org/forums/showthread.php?t=118154
Take note of this: "DME will store codes for pump failures, however only a shop with STAR diagnostics can read them." So your "mainland europe" guy might not be able to pull the codes out.
I start "suspecting" you might be right.
BUT there's something missing in the "logic" of the problem, that's the only answer I have not been given:
step 1: car with original ECU: full throttle from a standstill to 155mph with no problem at all, outside temperature 40 degrees celsius (!!!)
step 2: car with the ECU chipped by "mainland europe guys": from standstill to 170mph (I had to lift the foot because of traffic) with no problem, once again full throttle all the way through, outside temperature 32 degrees celsius
step 3: throttle reset: the car apparently suffers for that bloody intercooler issue
The question is simple: why the hell I didn't have that bloody problem with the intercooler with step 1 or step 2 but only with step 3??? It is obvious to me that the sinergy of resetting the throttle with step 2 generated the problem.
Therefore I am asking: is there any way to get back to step 2 from step 3 (i.e. getting the old fashioned "lazy" throttle that didn't cause any intercooler problem?)
THX!
Problem is: once it's done, what's going to prevent the possibility of that issue repeting itself over and over again?
Should I ask for some kind of "upgrade" for the intercooler codes?
Please reply
THX
Modern cars are hard to diagnose with logic. Too many inter-related causes and a lot of software.
The MB dealer will find codes, but the codes will point to the problem. Read up here on the IC pump issue. They can fix it easily, although it may only last another 40,000 miles.
Lastly, ECU changes seem simple and standard, but they can do wacky things. I had a transmission issue in my Audi caused by the ECU (not the TCU, the ECU). Even the technicians could not understand how the ECU affected the transmission. And the ECU had a well-respected aftermarket ECU upgrade.
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Modern cars are hard to diagnose with logic. Too many inter-related causes and a lot of software.
The MB dealer will find codes, but the codes will point to the problem. Read up here on the IC pump issue. They can fix it easily, although it may only last another 40,000 miles.
Lastly, ECU changes seem simple and standard, but they can do wacky things. I had a transmission issue in my Audi caused by the ECU (not the TCU, the ECU). Even the technicians could not understand how the ECU affected the transmission. And the ECU had a well-respected aftermarket ECU upgrade.
Got it,
I'll go to an official MB dealer's assistance asking for retrieving the codes related to intercooler's pump failure(s).
I understand that once an error is retrieved (and removed) the next step is the substitution of the intercooler's pump, is that correct?
I have a 1 year warranty on my C32, how about the cost for that replacement anyway?
THX!
The Best of Mercedes & AMG
look what I found: http://www.benzworld.org/forums/r170...placement.html
apparently the bloody intercooler pump waves goodbye soon after 50k miles
I spent the last 3 years on a BMW and I met several guys with reliability issues on their ///M3
Let's just say that even some of those guys at AMG didn't do their homeworks properly, bloody idiots........
look what I found: http://www.benzworld.org/forums/r170...placement.html
apparently the bloody intercooler pump waves goodbye soon after 50k miles
I spent the last 3 years on a BMW and I met several guys with reliability issues on their ///M3
Let's just say that even some of those guys at AMG didn't do their homeworks properly, bloody idiots........
As to the wisdom of the AMG design, I think it's amazing that they can produce a 3.2 liter 350HP engine that is so reliable and requires so little maintenance. The C32 is one of the true bargains on the planet (used of course).
Good luck.
My plan is to relocate the battery to the trunk in the spare tire well and use the battery's old spot for a seperate ic tank.
Thanks for the advice, pal
As to the wisdom of the AMG design, I think it's amazing that they can produce a 3.2 liter 350HP engine that is so reliable and requires so little maintenance.
I don't wish to say anything wrong, but I truly believe that "our" engine is one with the highest specific output (hp per liter) MB ever produced. Of course the "trick" of the supercharger helps out a lot, but it should mean better reliability than, for example, an ///M3
The C32 is one of the true bargains on the planet (used of course).
yes, man. "Used" is the word!
Good luck.
Thanks a lot!
MB was behind the curve on engine technology until recently. Benz engines were still 2 and 3 valve engines until very recently, and our C32 engine is based on an old-school Benz engine with single overhead cams and 3 valves per cylinder. Not very exciting, but stout enough to be boosted to 350 hp reliably. I'm assuming it will be more reliable than a high-strung, multivalve engine, but at this point, internal engine failures almost never happen to any car. Most repairs these days relate to accessories (pumps and electronics) and engine internals seem bulletproof. When's the last time you heard of a fundamental engine failure (piston rod, bent valves, etc.)?
Ciao!
If memory serves, the decision to go for the 3v SOHC configuration was a deliberate step to minimise emissions - a single exhaust valve allowed the cat to warm up more quickly and hence leading to improved start-up emissions. I can't recall another manufacturer that did it though.
I think it bemused back then as much as it does now, because of the then growing popularity of 4v engines. The SL had a 4v V8 in the early 90s if I recall correctly, and moving to 3v must have seemed a step backwards.
If memory serves, the decision to go for the 3v SOHC configuration was a deliberate step to minimise emissions - a single exhaust valve allowed the cat to warm up more quickly and hence leading to improved start-up emissions. I can't recall another manufacturer that did it though.
I think it bemused back then as much as it does now, because of the then growing popularity of 4v engines. The SL had a 4v V8 in the early 90s if I recall correctly, and moving to 3v must have seemed a step backwards.
I also remember a "hot" 190 with a 4 valve per cylinder engine........
In Europe MB is the obvious choice for those who put luxury and comfort before performance and sporty attitude
Thank God for AMG, then!
If memory serves, the decision to go for the 3v SOHC configuration was a deliberate step to minimise emissions - a single exhaust valve allowed the cat to warm up more quickly and hence leading to improved start-up emissions. I can't recall another manufacturer that did it though.
I think it bemused back then as much as it does now, because of the then growing popularity of 4v engines. The SL had a 4v V8 in the early 90s if I recall correctly, and moving to 3v must have seemed a step backwards.
And somehow, GM an Chrysler still make big HP with 2 valve V8s.
I have a one year warranty on the car, it should cover the whole expense of finding out what went wrong and the fixing. I say it should because these insurance companies in Italy are usually people worse than ****, trying as hard as they possibly can not to do what you paid them for.
In the meantime, just to cheer me up, I bought the sprintbooster from those greek guys........can't wait!
Ciao!
I have a one year warranty on the car, it should cover the whole expense of finding out what went wrong and the fixing. I say it should because these insurance companies in Italy are usually people worse than ****, trying as hard as they possibly can not to do what you paid them for.
In the meantime, just to cheer me up, I bought the sprintbooster from those greek guys........can't wait!
Ciao!
One good thing of my country is that though the limit on the highway is 130kmh/80mph we all know where the speedchecks are so it is atually manageble to hit 186mph mark every now and then and not get a ticket for that........
on the other side: car crashes is the first cause of death in Italy, mainly due to trucks drivers' very bad habits
Thanks to all those guys who pointed me towards that possibility
Coming from a long experience with BMW turbodiesels (whose I/C don't have such a pump being air/air an not air/water) I would never have guessed that!
Now I just hope the bloody warranty covers all the expenses!
Ciao




