C32 AMG, C55 AMG (W203) 2001 - 2007

C32 TCU Reflash

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Old 11-05-2007, 03:26 PM
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C32 TCU Reflash

Does anyone know of a tuner that can flash the TCU on the C32?
Old 11-05-2007, 04:02 PM
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LET C32 2002
Question

What's the TCU?
Old 11-05-2007, 04:08 PM
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Originally Posted by c32used
What's the TCU?
Transmission Control Unit
Old 11-05-2007, 05:05 PM
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i can get it done for you Jerry, just shoot me a PM for the details...
Old 11-05-2007, 05:09 PM
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Originally Posted by 1FASTC32
i can get it done for you Jerry, just shoot me a PM for the details...


I can always count on you!
Old 11-05-2007, 05:43 PM
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Originally Posted by 1FASTC32
i can get it done for you Jerry, just shoot me a PM for the details...
What will the reflash do? If someone has "hacked" the TCU, there's a LOT that I would want to improve in how the transmission works.
Old 11-05-2007, 06:00 PM
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Originally Posted by Fifth Ring
What will the reflash do? If someone has "hacked" the TCU, there's a LOT that I would want to improve in how the transmission works.
it will increase the shift point responsiveness and remove the torque limiter...
Old 11-05-2007, 06:04 PM
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I'm looking forward to this...

This is almost a "must do" mod for the C32.
Old 11-05-2007, 07:30 PM
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Any idea about how it may affect fuel economy or if may void extended warranty?
Old 11-05-2007, 08:33 PM
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Originally Posted by gkstar
Any idea about how it may affect fuel economy or if may void extended warranty?
will not affect fuel economy...any aftermarket upgrades have the potential to affect your warranty
Old 11-05-2007, 08:48 PM
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2003 C32 AMG, 2003 E39 M5
anyway to keep stock tcu and buy one that has the flash already? Can you provide more detail on this upgrade? I am new. I did something like this to my Audi 2.7T that was Tip. How it helped in this case was to bump up the shift points, I believe it made it hold those shift points longer and it also allowed me to hold 1st until I shifted it. In the Audi before the upgrade it would automatically shift out of 1st into 2nd. The upgrade allowed me to hold 1st gear until I shifted it manually.

Is this in line with what this upgrade provides? I have not really tested tip in the C32 yet but I think it will hold 1st gear in tip mode until you shift it into 2nd so that may not apply here.
Old 11-05-2007, 08:55 PM
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Originally Posted by bud4ya
anyway to keep stock tcu and buy one that has the flash already? Can you provide more detail on this upgrade? I am new. I did something like this to my Audi 2.7T that was Tip. How it helped in this case was to bump up the shift points, I believe it made it hold those shift points longer and it also allowed me to hold 1st until I shifted it. In the Audi before the upgrade it would automatically shift out of 1st into 2nd. The upgrade allowed me to hold 1st gear until I shifted it manually.

Is this in line with what this upgrade provides? I have not really tested tip in the C32 yet but I think it will hold 1st gear in tip mode until you shift it into 2nd so that may not apply here.

the C32 automatically shifts at redline in every gear...
Old 11-05-2007, 08:57 PM
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you can also have more than one TCU for the car...
Old 11-06-2007, 09:09 AM
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I have a spare TCU that I might send in for testing.

I've been saying that my car is acting funny at low RPM's and it seems that it wants to be driven hard. I think I know why...I have a feeling that my IC is leaking water into the car.
Old 11-06-2007, 11:26 AM
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The TCUs are prone to fluid contamination. It might be a corrosion issue.
Old 11-08-2007, 05:41 PM
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Originally Posted by AMG-Jerry
I have a spare TCU that I might send in for testing.

I've been saying that my car is acting funny at low RPMs and it seems that it wants to be driven hard. I think I know why...I have a feeling that my IC is leaking water into the car.
Jerry, can you monitor coolant level on your upgraded system? Coolant should be disappearing fast if yon can feel such difference.

On a different note, I have noticed that on cool mornings when I am easy on the car, transmission would up shift at slightly higher RPM points and that translates to a very smooth up shifts. When car is warm, up shifts happen at lower RPMs and are not as smooth. Any idea...?

Perhaps the re flashed TCU will keep the car in the first (smooth) mode most of the time. Does anyone know if all of the TCU maps are being reprogrammed?
Old 11-08-2007, 06:04 PM
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FINALLY this mod is available. I think this addresses my last peev with the AMG.

Count me in. I know that this is going to be at the top of the new "must have" mods list.
Old 11-08-2007, 06:06 PM
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Originally Posted by ChicagoX
The TCUs are prone to fluid contamination. It might be a corrosion issue.
Our TCU is in the cabin area of the car. Where is yours?
Old 11-08-2007, 06:07 PM
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Originally Posted by gkstar
Jerry, can you monitor coolant level on your upgraded system? Coolant should be disappearing fast if yon can feel such difference.

On a different note, I have noticed that on cool mornings when I am easy on the car, transmission would up shift at slightly higher RPM points and that translates to a very smooth up shifts. When car is warm, up shifts happen at lower RPMs and are not as smooth. Any idea...?

Perhaps the re flashed TCU will keep the car in the first (smooth) mode most of the time. Does anyone know if all of the TCU maps are being reprogrammed?

My Intercooler is leaking. I'm about 99% sure now. The car is sluggish when I first start it and I'm losing about a cup of water / wetter a day.
Old 11-08-2007, 06:08 PM
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Originally Posted by jgsx
FINALLY this mod is available. I think this addresses my last peev with the AMG.

Count me in. I know that this is going to be at the top of the new "must have" mods list.
I agree...

$1200 via paypal has been sent.

So, we need 7 other people to get the above price.

Who else is in?
Old 11-08-2007, 06:11 PM
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yup, you know i am in obviously!
Old 11-08-2007, 07:06 PM
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Originally Posted by AMG-Jerry
Our TCU is in the cabin area of the car. Where is yours?
Bolted to the trans. Serves me right for assuming.
Old 11-08-2007, 08:08 PM
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C32 AMG - in Pewter
Need info

Anyone who has extensive experience with the re-flashed TCU?

Is the new flash upgrade described in more detail somewhere?

Did they change all transmission maps (S vs. W, sporty vs. in-traffic driving). As you know the TCU adapts to driving style by choosing one of the preprogrammed control maps.
Old 11-08-2007, 09:15 PM
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1200 the price for just TCU reflash??? will this also take care of the tranny jerk ? i heard this works from one tread pls confirm 1fastc32
Old 11-09-2007, 12:16 AM
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Originally Posted by 1qikctr
1200 the price for just TCU reflash??? will this also take care of the tranny jerk ? i heard this works from one tread pls confirm 1fastc32

good question...let me confirm


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