I have noticed under a light acceleration, maybe 30 to 40 mph, if I switch the car from Comfort mode to Eco mode, it feels like the car just picked up 15 hp. I am not pressing on the accelerator any more than I was, and have watched the transmission, it doesn't downshift, but a very noticeable power boost occurs.
Just an observation, not a problem...but a definite curiosity. Wondering if anyone else with the 4 cylinder has noticed this.

 

I would guess it has to do with the transmission shift points and the level of RPMs each performance mode is set to. You should have the same experience when changing from comfort to sport. At least that is what I understand you're saying without testing it.

 

I have seen the same thing. I have to admit, it caught me by surprise the first time it happened. It seems counterintuitive, but it is definitely there.

 

You're right Bob...it does seem counterintuitive. Thanks for confirming I'm not crazy.

 

you're saying the car feels more sportier on Eco mode than Comfort mode? that is odd. On my 450 ECO is like a grandma mode for me and I can tell the difference from Comfort mode.

 

Yep

 

I have noticed that as well. When I put my GLE 350 in eco it feels sportier than comfort. Also I feel like the car shifts better in eco compared to comfort.

 

Same here, I assumed it shifted down to get a better ratio / rev range but you’re saying it doesn’t shift. Weird.

 

After reading earlier comments on this topic, I always use ECO mode. I actually wish that ECO could be my default mode , it cannot. The initial reason for my switching to ECO was to eliminate the hard downshifts and provide a more pleasurable ride which it does. I also like when the GLE goes into a glide mode, it does save a bit on fuel which is currently through the roof thanks to Putin.

 

You can make ECO mode as your default setting. You'd have to get with RJ Automotive to program your car. Once that happens, you would set your individual profile to ECO. RJ's tuning will set your profile to either individual or sport+ mode everytime.

 

throttle mapping in different in eco mode. I think it has more tip in than standard mode, combine with the fact it starts off in 2nd gear vice 1st.

 

Although I never researched the reason, I figured it had to do with either throttle mapping or behavior of the turbocharger. Overall the car is simply more enjoyable in eco mode.

 

Agree with that. I have finally gotten myself programmed to put it into eco before I even back out of the garage.

 

MBguy013, thanks for the useful info. I am so used to putting my car in ECO mode I think I will just rely on that method.