for those that changed the fuel settings?
for those that changed the fuel settings?
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well...that was fixed.....here is the latest.......haha...
https://mbworld.org/forums/showthrea...230+vs+mustang
https://mbworld.org/forums/showthrea...230+vs+mustang
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From: Kentucky
2002 C230K
I just got it changed yesterday when I had the Xenon setting turned on. I've not noticed a difference, but I haven't really had a chance either. I'll pay attention and get back to you. By the way, what's your butt dyno impression of the fuel setting change? Have you noticed any difference in HP side of things?
I also have to add... my MB Service Manager rocks!
He turned everything on no questions asked and no charge. In fact, the only questions he did have were where I got them, and if they had some that would fit his ML. Of course I filled him in and showed him the ballast, etc. I might have to tell him about the forum next since he's so cool.
I also have to add... my MB Service Manager rocks!
He turned everything on no questions asked and no charge. In fact, the only questions he did have were where I got them, and if they had some that would fit his ML. Of course I filled him in and showed him the ballast, etc. I might have to tell him about the forum next since he's so cool.
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From: Jacksonville Florida
w203 c230K 2002
Originally posted by Bos
I just got it changed yesterday when I had the Xenon setting turned on. I've not noticed a difference, but I haven't really had a chance either. I'll pay attention and get back to you. By the way, what's your butt dyno impression of the fuel setting change? Have you noticed any difference in HP side of things?
I also have to add... my MB Service Manager rocks! He turned everything on no questions asked and no charge. In fact, the only questions he did have were where I got them, and if they had some that would fit his ML. Of course I filled him in and showed him the ballast, etc. I might have to tell him about the forum next since he's so cool.
I just got it changed yesterday when I had the Xenon setting turned on. I've not noticed a difference, but I haven't really had a chance either. I'll pay attention and get back to you. By the way, what's your butt dyno impression of the fuel setting change? Have you noticed any difference in HP side of things?
I also have to add... my MB Service Manager rocks!
He turned everything on no questions asked and no charge. In fact, the only questions he did have were where I got them, and if they had some that would fit his ML. Of course I filled him in and showed him the ballast, etc. I might have to tell him about the forum next since he's so cool.
Randy
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From: Kentucky
2002 C230K
Originally posted by renncpe
Bos that is very cool. I read so many times that people got hassled by the service department when they asked to have setting changed. I'm glad to hear that not all Mercedes service centers are like that.
Randy
Bos that is very cool. I read so many times that people got hassled by the service department when they asked to have setting changed. I'm glad to hear that not all Mercedes service centers are like that.
Randy
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From: bucks county
black on black 2k2-230k auto/c1/c5/c7/k2c/COMAND/TELEAID/Stage II HIDS
service folks at MB of P are also very nice, they didnt even complain i bought my car from keenan.
they didnt know why my car chirped though when locked.... and asked what brand of alarm i had
they didnt know why my car chirped though when locked.... and asked what brand of alarm i had
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Thread Starter
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From: Earth
GLB 250 4matic
Originally posted by Bos
I just got it changed yesterday when I had the Xenon setting turned on. I've not noticed a difference, but I haven't really had a chance either. I'll pay attention and get back to you. By the way, what's your butt dyno impression of the fuel setting change? Have you noticed any difference in HP side of things?
I also have to add... my MB Service Manager rocks! He turned everything on no questions asked and no charge. In fact, the only questions he did have were where I got them, and if they had some that would fit his ML. Of course I filled him in and showed him the ballast, etc. I might have to tell him about the forum next since he's so cool.
I just got it changed yesterday when I had the Xenon setting turned on. I've not noticed a difference, but I haven't really had a chance either. I'll pay attention and get back to you. By the way, what's your butt dyno impression of the fuel setting change? Have you noticed any difference in HP side of things?
I also have to add... my MB Service Manager rocks!
He turned everything on no questions asked and no charge. In fact, the only questions he did have were where I got them, and if they had some that would fit his ML. Of course I filled him in and showed him the ballast, etc. I might have to tell him about the forum next since he's so cool.
but my impression is that it seems to be a bit perkier and when warmed up, deeper sounding. but it could just be my imagination.
anyway, i'm happy that my RON is set to 93 - at least i can sort of use the gas that i've been forced to buy (no 91 around here).
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From: bucks county
black on black 2k2-230k auto/c1/c5/c7/k2c/COMAND/TELEAID/Stage II HIDS
hmmm, i really only drove the demo car with normal fuel settings, i had my dealer change to premium before delivery. I would like to try someone elses coupe out for comparison though
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From: Nashua, NH
2008 VW GTI
Are there any side effects to changing the fuel settings? (Other than the obvious consequences of not using 93 octane.)
Does the display and and all features within it still operate the same as it did before you made the change?
I read a "rumor" on another board that messing with the Norway settings might have have some negatives.
Does the display and and all features within it still operate the same as it did before you made the change?
I read a "rumor" on another board that messing with the Norway settings might have have some negatives.
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From: Earth
GLB 250 4matic
fuel settings: same computer info. no changes that i can see. supposed to be more power for less fuel efficiency. feels like more power but haven't fully tested the fuel efficiency part yet.
norway setting: someone posted that the panic function was disabled... greg, that would explain your panic button not working. that person had to disable the chirping and the panic function was back.
norway setting: someone posted that the panic function was disabled... greg, that would explain your panic button not working. that person had to disable the chirping and the panic function was back.
Last edited by young; Apr 10, 2002 at 08:15 AM.
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From: bucks county
black on black 2k2-230k auto/c1/c5/c7/k2c/COMAND/TELEAID/Stage II HIDS
interesting young!
i will gladly keep the alarm chirps over the panic button ANY day of the week. the confidence of being able to lock the car, while walking away, and not having to look back is so nice.
i can totally live with that tradeoff. i dont think i ever used the panic button on my integra, and hopefully, i wont have to use it on my MB. Not like a car alarm sends anyone running now adays
i will gladly keep the alarm chirps over the panic button ANY day of the week. the confidence of being able to lock the car, while walking away, and not having to look back is so nice.
i can totally live with that tradeoff. i dont think i ever used the panic button on my integra, and hopefully, i wont have to use it on my MB. Not like a car alarm sends anyone running now adays
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From: Westwood, NJ
2004 Civic Si. FWD for the Win!
Young, so that's the negative of the Norway settings that you couldn't remember earlier? Doesn't sound like a big one to me.
I'm thinking of getting Norway and fuel settings redone when I go for my spoiler install on the 19th.
I'm thinking of getting Norway and fuel settings redone when I go for my spoiler install on the 19th.
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From: Earth
GLB 250 4matic
Originally posted by tommy
Young, so that's the negative of the Norway settings that you couldn't remember earlier? Doesn't sound like a big one to me.
Young, so that's the negative of the Norway settings that you couldn't remember earlier? Doesn't sound like a big one to me.
it could be. i just did a search on norway and found that little piece of info.
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From: Earth
GLB 250 4matic
well, i changed the fuel settings back to base. here are some impressions:
1st, the fuel correction setting was not changed as i was told it had been. (so it was still base and not 93 RON)
stage 2 was changed to base.
before i took it in, i did some test runs and carefully listened to the engine to try to see if there would be any changes. after the stage 2 setting was changed to base, the engine felt smoother. but it also felt slower (not a huge amount, but i could feel it). so i think the stage 2 setting does something.
also, here, we get 93 octane but if you goto Sunoco gas stations, you can get 94 octane.
1st, the fuel correction setting was not changed as i was told it had been. (so it was still base and not 93 RON)
stage 2 was changed to base.
before i took it in, i did some test runs and carefully listened to the engine to try to see if there would be any changes. after the stage 2 setting was changed to base, the engine felt smoother. but it also felt slower (not a huge amount, but i could feel it). so i think the stage 2 setting does something.
also, here, we get 93 octane but if you goto Sunoco gas stations, you can get 94 octane.
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From: Kentucky
2002 C230K
I too had my fuel settings changed back, but unlike Young, my ignition settings had been changed to "values of RON at least 93" and "Fuel Quantity 3". With these settings, although it felt better in the beginning, I would experience hesitation and lack of performance.
I had the ignition setting changed back to base and left my fuel quantity set to 3. According to my Service Manager, the fuel setting controls how long the injectors stay open, which makes sense, but he didn't know the actual time per setting. For what it's worth, I use Chevron non-reformulated 93 octane fuel exclusively.
I had the ignition setting changed back to base and left my fuel quantity set to 3. According to my Service Manager, the fuel setting controls how long the injectors stay open, which makes sense, but he didn't know the actual time per setting. For what it's worth, I use Chevron non-reformulated 93 octane fuel exclusively.
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From: Nashua, NH
2008 VW GTI
So.... from what I've been reading in this forum, I've formed an opinion: don't mess with the fuel OR timing settings becuase there are no noticable benefits. There may even be some negative effects.
Who's with me?
Who's with me?
Member
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From: Kentucky
2002 C230K
Originally posted by avlis
So.... from what I've been reading in this forum, I've formed an opinion: don't mess with the fuel OR timing settings becuase there are no noticable benefits. There may even be some negative effects.
Who's with me?
So.... from what I've been reading in this forum, I've formed an opinion: don't mess with the fuel OR timing settings becuase there are no noticable benefits. There may even be some negative effects.
Who's with me?
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M3
Originally posted by Bos
I had the ignition setting changed back to base and left my fuel quantity set to 3. According to my Service Manager, the fuel setting controls how long the injectors stay open, which makes sense, but he didn't know the actual time per setting. For what it's worth, I use Chevron non-reformulated 93 octane fuel exclusively.
I had the ignition setting changed back to base and left my fuel quantity set to 3. According to my Service Manager, the fuel setting controls how long the injectors stay open, which makes sense, but he didn't know the actual time per setting. For what it's worth, I use Chevron non-reformulated 93 octane fuel exclusively.
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From: Kentucky
2002 C230K
Originally posted by KJ-TypeR
Adding more gas doesn't mean more power unless a car is currently running lean. In fact, more gas on a car with an optimal a/f ratio causes a LOSS in power due to the car running too rich.
Adding more gas doesn't mean more power unless a car is currently running lean. In fact, more gas on a car with an optimal a/f ratio causes a LOSS in power due to the car running too rich.
Last edited by Bos; Apr 22, 2002 at 10:28 PM.
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M3
Originally posted by Bos
True, extra fuel does not necessarily equal extra power. But due to future plans I'd rather run slightly rich than potentially lean. Trust me, the fuel settings of 3 is doing nothing perceptible to the perfomance of the car in comparision to what the ignition setting did. Your statement regarding "optimal a/f ratio" begs the question as to whether the computer will make dynamic adjustments to compensate? Like potentially keeping the intake valves open longer??? Not suggesting this is the case, but an interesting thought.
True, extra fuel does not necessarily equal extra power. But due to future plans I'd rather run slightly rich than potentially lean. Trust me, the fuel settings of 3 is doing nothing perceptible to the perfomance of the car in comparision to what the ignition setting did. Your statement regarding "optimal a/f ratio" begs the question as to whether the computer will make dynamic adjustments to compensate? Like potentially keeping the intake valves open longer??? Not suggesting this is the case, but an interesting thought.
So your car is still running rich.
---------------------------------------------------------------
After reading this thread again, I have noticed that there are TWO settings:
One for Ignition timing
One for Fuel Quantity
I guess the one that everyone's interested in now is the one for ignition timing.
If I understand Bos correctly, he noticed hesitation and lack of performance when using the 93min setting.
BOS: Did you use 93+ octane gas after setting ignition timing to 93min? Perhaps the hesitation and lack of performance arose from using <92 octange gas?
The post below is what keeps me from making this change:
C230K thread saying the settings are in European Values
Last edited by KJ-TypeR; Jun 19, 2002 at 11:34 AM.
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From: Laguna Niguel, CA
Originally posted by KJ-TypeR
Adding more gas doesn't mean more power unless a car is currently running lean. In fact, more gas on a car with an optimal a/f ratio causes a LOSS in power due to the car running too rich.
Adding more gas doesn't mean more power unless a car is currently running lean. In fact, more gas on a car with an optimal a/f ratio causes a LOSS in power due to the car running too rich.
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M3
That is actually quite rich. 13.1:1 would be ideal for a forced induction engine. But to be a little on the safe side, it's better to have a value below 13.1:1.
12.5 - 13.0 is the best range for SAFE power.
13.1 is safe as well, but if something goes wrong (e.g. Boost Creep (not applicable to S/C cars), bad gas, REALLY hot ambient temp. etc., it could spell trouble.
How was this A/F ratio reading taken?
Did they stick something in your exhaust pipe?
Have you ever noticed that the C230K stops pulling hard at higher rpm? It might be due to the fact that the car is running excessively rich at higher rpm's.
12.5 - 13.0 is the best range for SAFE power.
13.1 is safe as well, but if something goes wrong (e.g. Boost Creep (not applicable to S/C cars), bad gas, REALLY hot ambient temp. etc., it could spell trouble.
How was this A/F ratio reading taken?
Did they stick something in your exhaust pipe?
Have you ever noticed that the C230K stops pulling hard at higher rpm? It might be due to the fact that the car is running excessively rich at higher rpm's.
Last edited by KJ-TypeR; Jun 19, 2002 at 12:09 PM.
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From: Laguna Niguel, CA
It was measured on a dyno with a probe in the exhaust pipe. Don't really notice any drop in power in the upper range. It pulls all the way to redline. The ECU was reset just before by disconnecting the battery for an hour and then driven about 20 miles. It could be richer than normal because the ECU has not adjusted it's parameters yet. Doesn't sound like I want to set any parameters that would make it richer. What was unusual to me that an older SLK was on the same dyno and the fuel mixture got leaner the higher the rpms up to 13.0:1 at redline and started at about the same 12:1 as mine.
