First I have to say sorry for asking this very complicated question. I have a Mercedes E220 2009 (W212). It is a 5G tronic with its gearshift being the standard knob between the driver and the passenger. I was wondering if it’s possible to replace its 5g tronic transmission with the 9g tronic and replace its standard hydraulic knob with the newer electronic gear shifting knob (the knob behind the wheel)? Thank you very much in advance.
Hi,
The transmission in your car (Mercedes 722.6) uses an electronic range sensor.
Your car is relatively new, so the range selector communicates with the transmission control module via the CAN controller area bus.
And as far as I understand, it does still have a shift cable, apparently to lock the transmission in park (?), maybe also for natural?
Anyhow,
it is unlikely that a different electronic shifter will be able to perfectly interface with an older car it's not meant to work in.
You can probably make something up using an Arduino or some other micro controller but is it worth it?
This would probably involve taking apart a 9G dial selector, and somehow converting and feeding its data to a 5G selector which will communicate on the can bus.
It's a huge headache.
First let me say, thank you very much for taking the time to answer this. I really appreciate it. I was wondering. Can you replace the 5g transmission with the 9g in order to make the “behind the wheel” knob work? The same model that I have (W212) also comes with the 9g tronic (the difference being that mine is from 2009 while the one that has 9g tronic starts from 2014 onwards), it’s still the same model though, just face lifted. Would it be possible to put a 9g transmission in mine in that case? Thank you very much for everything.
It would be cheaper to just replace the car with a car that has a 9G.
But I really do not understand the appeal of the small knob, a handle is definitely better.