Just bought this car and looking for proven/most popular mods. For context, I’m not looking for mods to turn this car into a track car. Mostly interested in modest increase in power/throttle response/handling. Tia

 

Congratulations on the new car! I can offer some opinions. If you'd rather not engage in any potential future factory warranty battles, you may be better off doing "stealth" mods to avoid any obvious mechanical/electrical additions that could be used against you to void any warranty coverages.

For power, I recommend a OBDII ECM Flash Tuner. This configuration allows you to quickly and easily restore your stock tune file when going to the dealer. This will leave a digital footprint in your ECM, but it's not easy to detect. In fact, I doubt most local dealers would have the digital forensics capabilities to detect this, it would most likely require the ECM to be escalated to MB engineering to detect. This seems like an unlikely scenario unless they have a specific need to go this far.

Something like this: https://mbworld.org/forums/c-class-w...oe-tuning.html

For throttle response, I recommend a throttle tuner. Modern drive-by-wire throttle systems are far from linear in their throttle inputs. Using a throttle tuner allows you to tune your throttle to respond like older cars used to behave, a closer 1:1 ratio between your foot and the throttle body, just like having a mechanical cable between the two. This will also help remove that stock throttle tuning feeling like you are pushing your foot into a bowl of mashed potatoes

I have a Pedal Commander and I can recommend it. It works well for me and my throttle response is much more linear now: https://pedalcommander.com/products/...-class-4th-gen

For handling, I think the simplest way to improve overall handling without going crazy with the suspension components and torsion bars, is to lower the center of gravity. Something like H&R springs. This will lower your ride height and will most likely have some affect on ride quality, so keep that in mind.

Also, if you don't care for the Eco stop/start feature and you're tired of hitting the Eco button to turn it off every time, this will solve that for you: https://www.midcityengineering.com/p...s-benz-ecopcm/

Good luck and enjoy!

 

Thanks for the very helpful info! Perfect for me to explore. I will explore all.