VelociRaptor

Is there any software available for tuning the computers on these cars, 2005 C230 Kompressor? See a few performance parts available for it but if the tuning cannot be done then its not going to be optimum.
BTW, new here

Benzin230

Veloci,

I am also new here. So far I have found nothing. Very few thing available for the motor on this thing. I am starting to think a c55 conversion is needed.

There is one piggyback that works by improving throttle response because of the Drive By Wire. I know UniChip make some piggyback options for weird cars but I have not researched it yet. I know for a fact that it can be custom tuned and I had it on my Jeep SRT 8 which should have a similar PCM.

Phin

Gentlemen, there really isn't any "performance mods"(imo) for the m-271 engine.The reason is that,as I believe it,the ECU has built-in "nannies" which makes it nearly impossible to "tune" the engine from it's original settings.I'm not an expert,this is just what I've gathered from my time on this site. This is single most reason I'm selling my car.It's a lesson I learned after I bought my car(had trucks and 4x4's most of my life).Some of the guys here have done some "mods",may I suggest you use the search feature to look them up.The w203's do however "clean up" quite nicely with cosmetic mods though.GL

dbvolz

Of course theres ECU tuning available. Powerchip makes a unit that supposedly results in gains of +18HP and +19 lb.ft

They have them listed at Bekkers for $672.00 but I'm sure with some shopping you can get it for cheaper.

There are of course other ECU tuning available from the big tuners (ie. Brabus, Renntech, Kleemann, Väth, just to name a few) its all a questions of how much you want to spend...

Oh and welcome to the forum! STFF!

VelociRaptor

Thanx, I will investigate whats available from those guys. I port as a hobby, been doing it for over a decade, and looking at taking the supercharger off and seeing how bad off it is and were some improvements can be made along with the cylinder head.

VelociRaptor

http://kleemann.dk/site/Main/perform...erformancekits

They also have a header for the C230 Kompressor.....

hieracity

So did u end up getting an ECU tune for ur m271 engine?

Could you share your finding since I am now looking into getting an ECU tune for my car...thanks

W203E35

I think Kleemann has the best bang for the buck. Kleemann is well respected.

There is a Kleemann sponsor here ask him for more details.

Name = Cory @ Kleemann

hieracity

I did email him and he said:

"THe M271 engine cars use a sealed ECU that is very difficult to get open. I do offer ECU programming, but unfortunately the car must be in my workshop to perform the programming- I cannot do it with the ECU on the bench top unfortunately."

So what now?

lol

Nokiemon

Powerchip in So. Cal flashed my ECU on my M271, and total time including shipping took 2 days. Make sure whoever you use has experience with these motors, as other companies offer re-flashing services that include German cars, but when digging deeper, a number of them work mostly on VW's, Audi's, etc, and not alot of these type of MB, so be selective.

After checking out everyone for almost a month, Powerchip offered the best customer service, and answered my specific questions about my motor. They provided me with detailed instructions on removal of the ECU (not fun nor easy to do on the M271 motor if you have big hands), and gives free tech support if you get stuck. A few other companies I spoke with left the remove and reintallation of the ECU entirely up to me, and offered little in the way of support, which made me nervous.

They are not the cheapest re-flash and I am sure some of the money goes for their brochures and marketing, but they were very responsive and knowledgable about my type of car, and always returned my calls.

Also some tuners offer different power options based on octane ratings, so make sure to get what works for you. I have access mostly to 91 oct in No. Cal, so I went with that package. And don't buy into most of the inflated hp numbers they promote. Best gain with a flash on these motors is between 5-10hp, give or take. All a re-falsh really does on these cars is tighten the tolerances, and re-curve the fuel maps based on throttle position. I knew what to expect based on re-flashes I have done with my other cars, but it did improve my 230's low end punch and mid-range passing power without a sacrifice in fuel economy, so I am happy with the results.

W203E35

Thanks for the info. I never knew it was that hard to flash the M271.

Good luck, many members said they had results with powerchip.

Nokiemon

If you should decide to look into Powerchip contact either Matt or Travis as they are very familar with the M271 engine and are great to work with.

The toughest part of the re-flash on my car was the actual removal of the ECU. It has four screws holding it to the side of the motor and the far corner screw in the 5 o'clock position is almost impossible to access because of the proximity to the shock tower. No room to work!!! Eventually had to actually make/modify a tool for the torx screw removal when normal tools did not fit into the tight space, and I have almost every type of tool for every application (except this one as I found out). First three screws took 2 minutes to remove, and the last one took almost 45 minutes, not counting all of the time I wasted swearing at the motor. Had to have the wife help me position the torx head driver while I backed out the screw, as my hands were too big to fit in the space. Then never heard the end of it after she broke a nail. Yikes! Learned a hard lesson that day.

But the Powerchip folks told me in advance about this issue, so I was prepared for a battle, while all of the other tuners made no mention of it whatsoever. It is a big deal if you think it is an easy in and out job. That is another reason why I went with Powerchip. Don't like surprises when I am wrenching !

VelociRaptor

Thanx everyone! Im staying stock basicly because of things I would like to do is a little more extreme than what those adjustments would provide. I was more lookin for a laptop type program simular to HPtuners so I could tune it myself on the dyno. Im wanting to port the cylinder head and supercharger along with a pulley/header/intake/exhaust swap. Ive ported 03/04 Cobras with great results and wanted to see what I could get out of this 4 banger.

C230 Sport Coup

People have tried with just a little sucess, the problem is the M271 can't pump enough fuel, and it tops out at 5K rpm if you add a pulley or port the SC.
Try contacting drexappeal, he put bigger FI's on, I think it worked.
But yeh, if you want go with something radical, you're gonna need more fuel.

VelociRaptor

Sure, if it runs out of fuel I was plannin on changing the pump and injectors.