ecu reset and.....WOW!
Senior Member
Joined: Jul 2012
Posts: 424
Likes: 13
From: Grand Rapids, MI
99 C43 AMG, 2001 CLK55 AMG
I believe it takes 40 shifts for the TCU to adapt.
you say "i find it really hard to believe that driving your car slowly and gingerly for a few weeks will cause it to lose performance when you then drive it hard. conversely it makes no sense that if you want to have the car at full potential that you have to drive like mad to keep the tranny 'on its toes'." but what is an adaptive tranny then
try the reset and post your results...
you say "i find it really hard to believe that driving your car slowly and gingerly for a few weeks will cause it to lose performance when you then drive it hard. conversely it makes no sense that if you want to have the car at full potential that you have to drive like mad to keep the tranny 'on its toes'." but what is an adaptive tranny then
try the reset and post your results...
I did disconnect the battery for about 45 mins the other day to put my cd player in, cant say i noticed much, but i can try the real reset procedure.
Im not so much trying to say that it isnt true, rather saying that is just a poorly executed/engineered feature. To me a good adaptive transmission would adjust every 15-20 shifts at max, really adapting every 3-4 shifts would make the most sense and be proficient.
I live in a very residential area, to drive hard for 40 shifts is just downright dangerous and would think the same is true for most people. then after you go through all that you take a trip to the mall or go out for a night driving easy and then lose your "firm shifts"??? again, not saying its untrue, just stupid
But i still am doubtful a bit. Are you guys saying the shifts are firmer and quicker or just holding RPM's longer? or both? almost any automatic tranny will go to the rev limiter at full throttle and shift sooner at partial throttle, from the first day I got my car till now if i go full throttle it will hold gear to redline, so that really cannot be counted as evidence. Now if you are saying that the shifts are quicker and firmer that you are noticing the car 'jumping' into the next gear, that would be evidence. Also, is all this discussion about full automatic mode or when 'manually' shifting 1-2-3-4-5?
MBWorld Fanatic!
Joined: Apr 2010
Posts: 4,437
Likes: 43
From: PDX
1999 C43, 2008 P30 E63, 2014 SQ5, 2024 Model Y Performance
what is your source for the 40 shifts reference?
I did disconnect the battery for about 45 mins the other day to put my cd player in, cant say i noticed much, but i can try the real reset procedure.
Im not so much trying to say that it isnt true, rather saying that is just a poorly executed/engineered feature. To me a good adaptive transmission would adjust every 15-20 shifts at max, really adapting every 3-4 shifts would make the most sense and be proficient.
I live in a very residential area, to drive hard for 40 shifts is just downright dangerous and would think the same is true for most people. then after you go through all that you take a trip to the mall or go out for a night driving easy and then lose your "firm shifts"??? again, not saying its untrue, just stupid
But i still am doubtful a bit. Are you guys saying the shifts are firmer and quicker or just holding RPM's longer? or both? almost any automatic tranny will go to the rev limiter at full throttle and shift sooner at partial throttle, from the first day I got my car till now if i go full throttle it will hold gear to redline, so that really cannot be counted as evidence. Now if you are saying that the shifts are quicker and firmer that you are noticing the car 'jumping' into the next gear, that would be evidence. Also, is all this discussion about full automatic mode or when 'manually' shifting 1-2-3-4-5?
I did disconnect the battery for about 45 mins the other day to put my cd player in, cant say i noticed much, but i can try the real reset procedure.
Im not so much trying to say that it isnt true, rather saying that is just a poorly executed/engineered feature. To me a good adaptive transmission would adjust every 15-20 shifts at max, really adapting every 3-4 shifts would make the most sense and be proficient.
I live in a very residential area, to drive hard for 40 shifts is just downright dangerous and would think the same is true for most people. then after you go through all that you take a trip to the mall or go out for a night driving easy and then lose your "firm shifts"??? again, not saying its untrue, just stupid
But i still am doubtful a bit. Are you guys saying the shifts are firmer and quicker or just holding RPM's longer? or both? almost any automatic tranny will go to the rev limiter at full throttle and shift sooner at partial throttle, from the first day I got my car till now if i go full throttle it will hold gear to redline, so that really cannot be counted as evidence. Now if you are saying that the shifts are quicker and firmer that you are noticing the car 'jumping' into the next gear, that would be evidence. Also, is all this discussion about full automatic mode or when 'manually' shifting 1-2-3-4-5?
After the reset I feel the tranny holds the RPMs longer before shifting (at partial throttle obviously not WOT as it will always hold to red line) and shifts between gears quicker. I'm not saying it is like a whole new tranny but it is definitely noticeable.
We are talking about when you have "D" selected, when you are shifting manually it will hold RPM's until you shift.
Like I suggested before, try the reset and post your results
Junior Member
Joined: Aug 2012
Posts: 72
Likes: 0
Yeah it does work. The guy I bought my car from drove in Winter mode mostly to save gas (not sure why he would have this car then, but whatever) so I did a reset when I found this topic to see what was up. And it's def. shifting better, as long as you drive aggresively. I took my housemate to lunch the next day and he noticed a difference without me saying anything, so that's proof enough for me.
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,892
Likes: 324
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Newbie
Joined: Aug 2013
Posts: 10
Likes: 0
From: MADRID-SPAIN
ML 320 CDI 4 MATIC AMG
BLACK SMOKE, NO POWER WITH ML320 CDI
Yesterday I made a carbon cleaning procedure thru the air inlet after the air filter removing the MAF sensor and spraying H2O2 thru this inlet with the engine working at normal temperature, perhaps my mistke was to run the engine with this MAF out of the place without air flow, so now the engine is producing very black smoke, no power at all and even reseting the ECU as mentioned in other posts, unfortunately no good results, anyone has any idea about how to do a hard reset without diagnose terminal.
I would like to fix it by myself before my wife kill me..........she is from Russia.
Thanks
I would like to fix it by myself before my wife kill me..........she is from Russia.
Thanks
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MBWorld Fanatic!
Joined: Mar 2005
Posts: 2,418
Likes: 194
From: America
1999 C43 AMG, 2005 E55 Wagon
Yesterday I made a carbon cleaning procedure thru the air inlet after the air filter removing the MAF sensor and spraying H2O2 thru this inlet with the engine working at normal temperature, perhaps my mistke was to run the engine with this MAF out of the place without air flow, so now the engine is producing very black smoke, no power at all and even reseting the ECU as mentioned in other posts, unfortunately no good results, anyone has any idea about how to do a hard reset without diagnose terminal.
I would like to fix it by myself before my wife kill me..........she is from Russia.
Thanks
I would like to fix it by myself before my wife kill me..........she is from Russia.
Thanks
at the very least I'm betting you have ruined all your spark plugs, o2 sensors, almost certainly your catalytic converters... hopefully didn't foul any coils in the mean time?
MBWorld Fanatic!
Joined: Mar 2005
Posts: 2,418
Likes: 194
From: America
1999 C43 AMG, 2005 E55 Wagon
Then I can't help but wonder why you're posting it on a thread on a forum for petrol powered cars? I suggest posting it in a forum where you will find people with a similar car.
Newbie
Joined: Aug 2013
Posts: 10
Likes: 0
From: MADRID-SPAIN
ML 320 CDI 4 MATIC AMG
ANYONE CAN HELP WITH HARD RESET ECU ML320CDI
I made several times the ECU reset proposed in this forum without any sucess, anyone knows another option rather than to call a tow truck to take the car to workshop?. The engine doesn´t reach above 1500 RPM and the exhaust expel very black smoke. I need to delete o make a hard reset of the ECU perhaps?.
Thanks for the help I am new in this forum world and my english it is not good enough to explain properly all my questions
Thanks for the help I am new in this forum world and my english it is not good enough to explain properly all my questions
MBWorld Fanatic!
Joined: Mar 2005
Posts: 2,418
Likes: 194
From: America
1999 C43 AMG, 2005 E55 Wagon
I would suggest going here: https://mbworld.org/forums/diesel-forum-76/
And starting a thread. This forum is for gas/petrol AMG w202 chassis. Very unlikely we can help with a diesel issue unless one of us is coincidentally a diesel owner.
And starting a thread. This forum is for gas/petrol AMG w202 chassis. Very unlikely we can help with a diesel issue unless one of us is coincidentally a diesel owner.
Thread Starter
Super Member
Joined: Nov 2008
Posts: 620
Likes: 35
From: north jersey
99 c43,90 mustang gt supercharged convertible,07 acura tl type s, Hummer H3t pickup
I made several times the ECU reset proposed in this forum without any sucess, anyone knows another option rather than to call a tow truck to take the car to workshop?. The engine doesn´t reach above 1500 RPM and the exhaust expel very black smoke. I need to delete o make a hard reset of the ECU perhaps?.
Thanks for the help I am new in this forum world and my english it is not good enough to explain properly all my questions
Thanks for the help I am new in this forum world and my english it is not good enough to explain properly all my questions
