rrpnow

I have a 2006, w203... I tried doing some search, but didn't come up with much... I was wondering is there a way to disable auto shift, aka to get the system computer to work like the 2004 c230s... So I can keep my car just under redline with out it shifting into the next highest gear... Thanks

yeuchau

thought you can just use tiptronic mode??

BadAssC230k

I tried do find info on that... even the guy at the dealership said that its got it built into the the comp so that you dont grenade the motor. stupid i know, but still kinda smart. but the whole concept of auto-stick is to shift without the clutch. sometimes i feel like im being babied by my own damn car. argh!

W Cole

I have a 2004SS and in "manual" mode the car will hold the gear until redline but it will always upshift before you bounce off the rev limiter.

I thought the only cars that would let you bounce off the rev limiter were the AMGs in sport mode??

rodngun762

Should have gotten a manual..

A bummer though because it seems your HP peak is at 6200 rpms in the 2.5L c230... does it even rev that high without shifting?

PC Valkyrie

The only W203 which will allow you to bounce off the rev limiter without automatically upshifting is the C55, with its "M" (manual) mode on the transmission. In "S" and "C" modes, the transmission will automatically upshift before you hit the rev limiter even if you've opted to select gears manually with the touchshift feature.

b3d_sage

that is inaccurate. my MY2001 C320 will allow me to hold the engine about 100rpm above redline. I can make a video to prove it if you want.

advans

I agree, my 03 C320 shifts WHEN it hits a little pass the redline.

pugguy2001

The agressive version of the Sprint Booster holds your rpms upto your redline. Try it you will love it!
Try this for know: reset your ecu with the ecu reset trick, put the car in manual mode, keep it on S setting, then go for a drive. Let the car do everythng else from there on. What I mean is let the car shift itself for you at the red line. Yes it will rev like crazy but you will have your power at that point. If you come to a light to soon put it back to first gear and start again. It will learn your new shift points. After all this you can put it back in automode and it should still know to shift at the red line. This is how my car is but then again I do have the agressive sprint booster.
goodluck!!!

WaveyKat

think mines doesn't shift at all

b3d_sage

Mine doesn't shift at all unless I let it shift. I can drive around with it a little above redline. Or... I can until I blow up the engine ;-)

rrpnow

man, there has to be something... i even put car in dyno mode and it still shifted... sigh

PC Valkyrie

Going above the redline on your tachometer is very different from hitting the rev limiter. What happens when you keep your foot on the gas? This I want to see!

b3d_sage

It bounces off of the rev limited indefinitely. Let me see if I have a camera here...



edit:
video will be available on Youtube shortly!

b3d_sage

yeah.... umm... apparently my school's network won't let me upload the video. Is there anyone I can (try to) email it to who would upload it for me?

Arn560

My 2004 has adapted to my style of driving & in manual mode it will let me go above redline before shifting. If I keep my eye on the tach I could change about 200 over Redline.
But I prefer to keep it in Auto so I can talk on the phone with one hand, steer with my knee & smoke a cigar with the other hand.

rrpnow

so basically if i beat the **** outta my car in Auto S mode, i should be able to go just near redline in manumatic mode?

pugguy2001

Yea you pretty much pinned it on the nose. The harder you drive this car the better it gets. It learns your driving pattern. On the other hand if you are in traffic all day it will learn this driving pattern and it will shift like a grandma. Aslong as you reset the the drive-by-wire often you will be fine. I am hoping some one will find a way to disable this adaptive tranny setup. I was thinking/hoping Sprint Booster would work on this one day?
Did you try reseting your dive-by-wire and then let the car shift itself in manumatic mode? That should bring the shift to the red line, in manumatic mode.
Step 1: Reset drive-by-wire
Step 2: Turn car on and put car in manumatic mode and turn ESP off
Step 3: Put setbelt on and drive it like you stole it. (What I mean is floor it while keeping two hands on the steering wheel, this way you wont be tempted to shift it when the car starts to whine like crazy)
Step 4: Your shift points will now be at the redline.
Step 5: Repeat steps 1-4 twice a month.
Good Luck

b3d_sage

I follow steps 2 (minus putting it in manumatic since I don't have to and mine wont auto-shift) and 3 every time I get in my car. Is there an alternate method of driving?

pugguy2001

So you are saying your car wont shift at all until you shift it yourself. Did you have any work done to your ecu. Arent you afraid of blowing up your engine. How much past the red zone does your car hit the rev limiter?
So when you say your car bounces off your rev limiter, does it eventual shift on its own or does the car just cut out?
Well I guess Mercedes has different setups for different models.
As far of an alternate method of driving I dont think there is one for these cars (Mercedes) otherwise the damn adaptive tranny will learn it!

b3d_sage

yes no no I think around 200rpm
it runs slightly above redline
or they put in autoshift sometime after 2001
I floor it everywhere and I LOVE quickdown. My tires don't last very long though.

Anyone want me to email them the video I made? I need someone to post it. It shows the behavior of the car, holding above redline until I manually tell it to upshift.

LeifW

This is a dumb question, but how do you do Step 1 Reset drive-by-wire?

Thanks,
Leif W

pugguy2001

1. Turn the ignition key to the on position, lights on dash will turn on.

2. Press the gas pedal to the floor and hold for atleast five seconds.

3. Turn the key to the "off" position (don't remove the key), then release the gas pedal.

4. Wait at least two minutes for ECU to reset.

Enjoy!!

everycredit

Email to everycredit at gmail dot com. I'll post to a server.

b3d_sage

Alright aparewntlymy university hates .mov so much that I can't even email it. However, I'm going to Baylor today and I'll send it from there.