c55m8o

perhaps it's cheaper from IBM directly? I think the other company is reselling it.

Click Here:
Star Diagnosis System info on IBM

snoopy_dog

I also am interested in running the fuel settings in ECONOMY mode so that I can pump cheaper gas, saving over $1,000 over the next few years. (Although I own the C320, I'm a fairly "sedate" driver so performance is not a key consideration.)

What octane level can I burn in ECONOMY mode? Other than a degradation of performance are there any short or long term negative effects to the engine by running in economy mode?

Thanks!

KJ-TypeR

Where's the dyno graph of the 5-7 hp? Can you post it up? 5-7 horsepower is a BIG claim for changing the "fuel setting".

I don't see how changing the fuel setting could increase horsepower unless it increased ignition timing. This would require the use of higher octane gasoline but in this case, the fuel economy would probably be BETTER!

young

ok, we discussed this in more detail in the tuning forum. see this thread --> https://mbworld.org/forums/showthrea...&threadid=6756

but generally, it seems that the fuel RON settings will allow you to use lower octane fuel. see the thread for the table that shows the RON converted to US Octane (eg 93RON = 89 US Octane) not sure what the long term effects would be by using these settings.

Crankin

Is the fuel settings program the same as the ignition correction program, or are they 2 different areas of adjustment?
Thanks

BlackC230Coupe

When i wanted my fuel settings changes my dealer told me its not possible, so i emailed them the screen shot that KLEEMANN took and i sent it to him and he told me if that was possible to do it would be against the emissions.

Brandon @ Kleemann

ARRGH!!!

This gets me so furious- its not going to do anything illegal to the emissions. These settings are there to help tune driveability issues, all legal, all OK in MBZ's eyes. I mean, come on, they made the F***&^% machine right?

Crankin

Kleemann- we checked my 2000 S class today, and it has the ignition correction program in it. It has Baseline, 93 RON, 91 and 89. Will it be of benefit to switch it to 93 RON from the Baseline?
Also, should the fuel setting, if it is another program, also be reset from baseline? Please let me know, as the ignition setting has alraedy been changed to 93, but can be changed back bfore it leaves the shop.
Thanks

Buellwinkle

I changed the ignition settings on my car to 91 octane and I got 5 mpg better but lost 17hp at the wheels.

Brandon @ Kleemann

There is no benefit to change from basline settings on a stock N/A vehicle. The fuel settings discussed here are for 4 cylinder supercharged cars running increased boost pressure.

C230 Sport Coup

What "stage" are they set for from the factory?

Brandon @ Kleemann

Factory settings are at "baseline". Any OCTANE setting will reduce the total advance of the ignition system. Any fuel quantity setting will increase mixture (richen) by a nominal 3%.