Eco On-Off and what I did about it
 

I hate having to press the button to bypass Eco-Off each time I start the car, so I bought a device sold by Vladimir on Ebay for less than $150. It takes less than a minute to plug in and out of the OBD port next to the hood lever under the steering column. This leaves the Eco-Off the way you want it. It works on a 2018 E400 and there is nothing to install and is reversible in case you want to reverse it. BTW, Vladimir is a member of this forum.

What is the main reason that you dislike about the eco system? just curious.

Other the AC turning off I see no reason what so ever to dislike this function.

It won't, the starter and other related functions are designed to work this way.

The car stops and starts several times during slow maneuvering, so the Eco-Off has to be bypassed. Also, I don't think the starter will last very long with all those start-ups.

most dangerous situation with ECO-start-stop is when you turning left at high trafic and exactly same time when you are ready to accelerate to pass the intersection, ECO decide that is a RIGHT TIME TO STOP engine, then it takes 0.7sec to start again. really dangerous

No it isn't, you should have a wider margin of error while driving

Eco start/stop why do I hate thee.

• Sometimes there is a restart delay (>500ms) when the engine stops just as the throttle is pushed.
• I've had the engine stop while paused during a left turn that created a dangerous situation.
• When restarting the process is not smooth. The car shudders.
• The interior overheats quickly due to the lack of A/C. Our daytime temperatures have already reached 32°C (90°F).

Anyone that thinks it's okay for an engine to start and stop a million times a year is out to lunch. I don't care if Mercedes says that it's built to do that, it's horrible for your car, and all engine components.. and unless you drive like an old man or are just a ****y driver it's pretty unsafe as well.
In fact one of the reasons why people enjoy tuning these cars so much is for the faster throttle response...
You also have to keep in mind that most people on this forum can't even do the most basic things like change a flat tire so it's not really the best place to tell people about modifications.

@Ariesfamous
I doubt that and engine will restart twice a minute as you imply. Engine components are designed for specific duty cycles. MB's new I-6 engine will start and stop much more frequently without the driver feeling the change over from gas to electric. The issue with the current setup is the lack of electric motors with instantaneous response.

Finally, you have no idea of what the capabilities of the members on this board are so keep your opinions about member's skills to yourself.

I have no idea about the wear and tear aspect, but this is my third Mercedes with this Eco Start-Stop function. I despise it. Two M276 NA engines and now a M276 Biturbo engine, none are smooth on restart. The car shakes a bit. The fraction of a second delay to accelerate is not appreciated. The lack of A/C is not appreciated. So while I understand why Mercedes and others use this, I'm happy to disable it.

Lol. No wobder these forums are dead.

Ha. No jack in the trunk.

704set

Lololololololololol. I'll state my opinion as I choose.

What are you? Twelve?

You certainly do. Still makes you clueless about tech.
ECO Start/stop is disliked by as many people as run flat tires. This isn't a feature that MB created because people wanted it; these are simply tools to meet environmental/fuel economy mandates. Still, the engines work work just fine. Dimitri's module is a perfect solution, just like Mid City, Brabus and others...
I never have to disable mine because I always drive Sport Plus mode. Problem solved ;)

You still have to make that selection every time you start the car don't you? My car always starts in comfort mode and I have to switch modes manually. That takes the same effort as turning off Eco start/stop. I wish MB would make those settings sticky.

I noticed it's the same few guys that have to chime in on every single post,you guys should try going outside there's a whole world out there.
Enjoy your day.

I won't get into what I know about tech as my penis is not that little that I need to fight on some forum.

Maybe that is because we actually contribute to these pages instead of bragging about our penis size?

Really? Did MB re-design the starter and related parts when it started adding Eco On-Off?