hayta78

Hi there,

Just bought a 2012 c180 7g-tronic which is non-amg. Car has eco and sport shift modes. Is there a way (a software trick or something else) to enable the manual shift mode just like the one that amgs have?


Thanks in advance,
Kerem

michail71

Yes, there is a way but it is very hard finding someone to do the job. Do you have paddle shift levers? I don't imagine it would be that great to use with the shift knob.

I located a shop that claims to be able to do the coding but haven't gotten around to getting over there. Plus they want to keep the car a day or two.

hayta78

Thanks for the reply. steering wheek with paddle shifters is definetly going to be my next step

Do you have any idea if it's some kind of low level coding?

Thanks,
Kerem

capt_paul

I have a OEM steering wheel with paddle shifters for sale. PM me for details

michail71

Paddles will function without any coding but not the same way they do in AMG models. You just get gear limit with, the same as with the shift knob, but it is still very useful and much easy to use than the knob.

There are instructions on how to code full manual mode operation but I haven't gotten around to doing that yet. It requires someone that can use Star Diagnostic in developer mode. Otherwise it requires a dealer and the factory to agree to it and they won't .

Funkwagen

If anyone knows how to get M mode activated on a facelift model please let me know. I'm able to do it on pre-facelift models but haven't found a straightforward way of doing it with the 7g-tronic+ transmissions, their variant coding seems to be completely different.

michail71

All I have ever seen is this thread, which I'm sure you have seen. But it indicates all w204 facelift vehicles.

https://mbworld.org/forums/e-class-w...s-package.html

Adamkn

Knightmare69

You know how to do it for the 5g on pre-fl?

Sentosa

I thought you could do it by pushing the gear lever to the left or right in Drive.

michail71

That is gear limit mode, which is different than manual mode.

I sold my car but had never gotten around to activating manual mode.

Acapulco Bill

Euro-spec C300 Sport trans mode button has Comfort-Sport-Manual plus paddle shifters standard. However, the 7G transmission has a lot of slippage built-in and found that Manual shifting was always disappointing. Commanded upshifts are so slow that the engine revs beyond the torque band before changing, and downshifts, when they eventually occur, do not provide practically any engine braking. So Manual paddle-shifting? Meh. Won't be any different from using the console shifter. Haven't used Manual or the paddles in years.

michail71

The one good use of the paddles in this setup is the hold downshift feature. It will drop the car to the gear which has the most power for braking or acceleration. It's great for highway passing as it eliminates the throttle lag.

My new car has near instant shifting paddles but it doesn't do the hold power downshift which I miss a little bit.

henry666

To activate "M" mode, need to do coding to gear box ECU.
The proper way is perform SCN coding add AMG sport package to ECU,
but it need official account to doing online coding,
means that only dealer or someone who has the access can do it, and this is a bit costly.
Dealer will only tell you that is not possible or they refuse to do that.
So will need to find the workshop which is expert in Mercedes.

And some said that it also can be done Offline.
But that is many variant in coding and need to pick manually,
then try on error see which code work with the gearbox.
Wrong coding turns out unable to shift up or down or gearbox not working properly.

henry666

Mine is pre-facelift C280 (C300 US) with 7G and AMG sport package,
Downshift provide significant engine brake to me.
Just that even in M, computer still in control to gear shift and there is some delay.
Compare with real Manual transmission it is totally piece of toy.