Originally Posted by Merserybenze

I've learnt a lot from this thread (thanks Funkwagen, in particular). I can get the hardware and software to make the changes for about $1000 for a fully working system that doesn't require messing with VMs, ports and other technicalities. It's a lot of money to make 2 to 4 minor changes. Rather than buying all this for a one time change I was wondering if there is anyone in NE Florida area who has the tools to do this - I would pay?

Or, if not, I'm willing to buy the stuff if others in the area would be willing to share some of the cost - I would confirm it works on my car and then do others cars...

let me know...

Originally Posted by Carsy

Yes, it is the 722.640. Thanks for looking.





I did the reset & noticed no change.

Toggling between E & S makes little difference also to the way I drive.

I would be much happier if MB had spent the money & put a drain plug on the torque convertor rather than farting around with this rubbish.

Thanks for your input.

John

Originally Posted by Funkwagen

If I'm honest I'd almost advise against doing the well known TCU reset. Reason being, while it works well temporarily as the ecu re-learns your driving pattern, if you happen to get stuck in slow moving traffic during that adaptation process (which as far as I know can take at least a few drive cycles), you'll end up worse off than before and the car will become even more sluggish. Slow traffic aside, I found it didn't "learn" correctly a number of times and the result was pretty undesirable. So you'll end up having to continuously resetting it - I found it very frustrating.

Originally Posted by xEryx

Honestly Funk, I think we are not giving this enough credit. This change is AMAZING and I personally see nothing wrong with how the throttle responds, hell it should have been like this from factory.

Originally Posted by Merserybenze

I've learnt a lot from this thread (thanks Funkwagen, in particular). I can get the hardware and software to make the changes for about $1000 for a fully working system that doesn't require messing with VMs, ports and other technicalities. It's a lot of money to make 2 to 4 minor changes. Rather than buying all this for a one time change I was wondering if there is anyone in NE Florida area who has the tools to do this - I would pay?

Or, if not, I'm willing to buy the stuff if others in the area would be willing to share some of the cost - I would confirm it works on my car and then do others cars...

let me know...

Originally Posted by Merserybenze

I've learnt a lot from this thread (thanks Funkwagen, in particular). I can get the hardware and software to make the changes for about $1000 for a fully working system that doesn't require messing with VMs, ports and other technicalities. It's a lot of money to make 2 to 4 minor changes. Rather than buying all this for a one time change I was wondering if there is anyone in NE Florida area who has the tools to do this - I would pay?

Or, if not, I'm willing to buy the stuff if others in the area would be willing to share some of the cost - I would confirm it works on my car and then do others cars...

let me know...

Originally Posted by michail71

If you find anyone I would be willing to drive up to NE Florida from down here.

Once I get my car back I'm going to check with my indie shop and see if they can try this.

Originally Posted by Funkwagen

Thanks! I'm happy to contribute to a forum I've found very helpful. I very much agree with what xEryx has said (quoted below) about how the car feels now with the changes made, he's described it probably better than I could. The changes don't make it difficult to drive slowly and calmly at all. They apply to both S and C mode, so you get all the power/throttle you want/need in either mode, but but the car can be driven calmly without any issue. xEryx said it removes the "smoothness" of the throttle, and this is true to an extent. Basically, the throttle will be as smooth as your foot is on the pedal; the artificial feeling smoothness (aka: step on pedal...wait for car to ramp up throttle input slowly) is gone, and that's a good thing. The changes improve the "sportiness" of S mode, and keep the "calmness" of C mode, but remove that feeling of hesitation you get sometimes. If I had to sum up the change in one sentence, I'd say these changes allow you to drive your car the way you'd like much more easily without interference/unnecessary alterations to throttle input from the ECU. You won't see a change in fuel economy unless you do some aggressive driving



I definitely agree with all of this. As for the change in fuel mileage, I don't doubt it. If you're doing some spirited driving and the throttle reacts appropriately, you'll see fuel consumption increase as expected These settings make the car more responsive to the drivers input, unlike the default settings which basically feel like they only somewhat take the drivers input into consideration..




The initial lag has been significantly reduced. These changes improved 0-100 times for me by about 0.5s on average. Not a big gain, but the change is noticeable - immediate launch has a bit more kick to it, possibly because of the removal of the electronic torque limit in combination with being in 1st gear.

I think I'll have to update the first post with a FAQ to answer all this at some point soon!

Originally Posted by xEryx

I can answer some of these questions on how it has worked for me. When it comes to accelerating the moment you step on it a tiny bit say 5-10% throttle, the car picks up speed immediately so the lag is 95% gone in my eyes. When I drive normal on my way to work in the morning, it feels so much better now that I can cruise like I could before, but now if I stop at a light/turn or am overtaking, I immediately get the power I need to get moving. It is always a risky move turning or overtaking when there is traffic, but it is even more risky if the car won't respond for like 1 second due to lag or you have to really step on the throttle. I was doing some spirited driving on the back roads and I felt that the transmission was so much sportier. The car held the RPM at the top end while taking curves instead of downshifting (likely due to the setting that doesn't reduce speed as much while taking a curve).

I don't think you can go wrong with these settings. All they do is remove the throttle lag and make the car shift more aggressively. Disabling this does turn off the smoothness of the throttle though which equates to lag and 2-5 MPG more. It all depends on how you are driving and if you are using S mode which is even more aggressive.

Originally Posted by Rodpwnz

If you guys want to setup a group buy, we can buy a single system with our pooled resources, and if it comes out to less than $250 each, I might be willing to do it. We could just ship the system between us and then one of us either keep it or resell it to recoup any costs. If one of us keeps it, any of us can still use it to undo or adjust tweaks.

I am able to use a system one time for around $150 so I'm still debating that option, but I wouldn't be able to change settings after the first $150. I would have to fork over $150 again to use the system a second time.

Originally Posted by michail71

So any idea what the equivalent parameters would be for an M271 engine?

Originally Posted by Merserybenze

i'm in the process of getting the kit. It'll take a few weeks before it arrives. Once I get it and I confirm it works I'm sure we can all work out something on sharing cost. Will keep you all posted.

Originally Posted by Funkwagen

These look to be similar for the ECU of your engine (SIM271KE20). I can't test them, unfortunately. Keep in mind the changes made to pedalkennlinie will not correspond with the same KLD # of this ECU, they're completely different. You'll have to experiment edit: Lastschlag is set to deactivated in this screenshot, but that's only because simulation mode only allows a blank variant coding string. I don't know what you'll find when you connect to the actual ECU, it could already be deactivated, it might not.

Originally Posted by Rodpwnz

Thanks! Please do keep us posted! Hopefully I can hold off long enough haha!

Originally Posted by Merserybenze

arrived. been playing with it. seems really complicated. Using simulation mode at the moment. This will take some time to figure out!

Originally Posted by Merserybenze

arrived. been playing with it. seems really complicated. Using simulation mode at the moment. This will take some time to figure out!

Originally Posted by michail71

You wouldn't happen to be in Forida?

Originally Posted by Rodpwnz

Great to hear! When you have it all sorted, let us know if we can do this group system share or something of that sort. If you aren't interested then I will pursue my local opportunities.



Or California? Michail, are you interested in sharing some of the system cost and passing it around between us all?

Originally Posted by Merserybenze

In Florida...more than happy to share once I've figured it out. I hope that will be by the end of this week.

Originally Posted by ghlkal

Funkwagon and xEryx,

Now that some of the newness has worn off and you aren't stomping the GO pedal all the time, can you comment on gas mileage?

Also Funkwagon, is there an ECU parameter to set the default drive mode to "S" instead of "E"? If I didn't have to press the button every time I start up, that would be an added benefit.

Originally Posted by Merserybenze

FunkWagen help!

I bought a preconfigured laptop with DAS, Xentry C4 and a bunch of other software. It connects fine. DAS doesn't recognize my W204 and W204 isn't listed as an option. Also, I can't find any of the parameters listed here in Xentry - pedal, speed limiter etc.....Any ideas? I was able to run a bunch of tests in Xentry and reset the tranny adaptation but I don't see anything like parameters posted in this thread by you and others.

Originally Posted by ghlkal

Funkwagon and xEryx,

Now that some of the newness has worn off and you aren't stomping the GO pedal all the time, can you comment on gas mileage?

Also Funkwagon, is there an ECU parameter to set the default drive mode to "S" instead of "E"? If I didn't have to press the button every time I start up, that would be an added benefit.

Originally Posted by Merserybenze

Funkwagon and xEryx

I did find the values I want to change under Motor Electronics ME97 adaptations..configurations...coding..throttle change damping (activated) and speed limit (210KMH) and Accelerator pedal characteristic (characteristic no. 4..2).

I could not change any of the values. The values are grayed out. Any ideas?

Originally Posted by Funkwagen

Can you post a screenshot? Are you trying to do this through Xentry? I haven't found a way to do it through Xentry - Mercedes has everything locked down by requiring an online connection through xentry for SCN coding officially.. Vediamo is the way around that