pcascio

Which one should I use? I can't find an explanation anywhere, but maybe I just missed it.

Egonvdv

don't you mean active LANE KEEPING ?

pcascio

Yes, thanks. I should have searched a bit more.

Luster

Delete reply, I got it.

E300-18

IME, the adaptive option seems to have a little more effect than what the manual states. I live on a narrow road, and if there’s no oncoming traffic, I tend to drive a little left of center. My wife’s Subaru complains incessantly, but the Mercedes doesn’t mind.

It seems to detect a slow drifting out of your lane, which would be more indicative of inattention.

That said, I still ended up turning the option off. I was driving on a windy road one day, and I was approaching a rather sharp bend to the left. I wasn’t driving aggressively, but the car seemed to think that I didn’t see the curve. It sounded an alarm, and it attempted to steer left of center. There was oncoming traffic just around the bend, and I found the experience unsettling. I’d rather pay the consequences of my own mistakes, instead of the car’s mistakes.

ygmn

I feel it wears out the rear brakes since that is how it gets you back in lane in lieu of turning wheel.
so turned mine off as well.

Also when a car merges into you it fights you trying to go into shoulder to avoid wreck.

E300-18

I forgot about that. When a huge semi is crowding my lane, I don’t want my car to argue with me about giving it some space.

nycebo

I turn it on or off depending on the situation. Late at night, especially if I'm tired, it's surely a life saver.

rustybear3

I find Distronic works best on the highway. It works fine on traffic roads as long as you pay attention to your steering. It won't change lanes automatically like it does on the highway, and it doesn't take the curves as well. It brakes in stop and go traffic just fine.

I use it almost exclusively on the open highway....not so much for the downtown stop and go scene.

As far as lane keep assist by itself, I find it to work pretty good, but then I'm mostly steering on my own. Occasionally II fight it a little depending on circumstance. I keep it on all the time.

CaptainE

I’m confused. When does the car steer and when do the brakes activate?

ygmn

With Lane departure thingy turned on.
When you go outside the lane steering wheel vibrates and car applies brakes to pull car back into the lane.

Owners manual describes it much better.

Car steers when using DISTRONIC +Steering assist is on.

car keeps speed and tries real hard to say in lane even on curves. not perfect inmy 2015 but read it gets better as car model gets newer - 2019 are supposed to be very good at steering.

sackboydad

Hmmmm. I can’t find this setting in my 2019 Cab. Wonder if it’s a coupe/cab thing as opposed to a sedan or only on an earlier model year?

ygmn

On steering wheel control
under settings
and lane keeping in my 2015 not sure in your 2019 but check your manual

sackboydad

ahh. I was looking on COMAND where all the other Distronic and ESP stuff was. I’ll check on the steering wheel.

ua549

On my my '18 there are dashboard switches on the left of the steering wheel to control some functions.

Cerave

this adaptive vs standard setting is confusing tbh

sardarji

When I bought my '17 e300 P3, the car was on Adaptive and self-driving really didn't work well. It was basically like a normal cruise control and very little steering wheel input was being given from the car. It was also drifting out of the lanes all the time.
I changed the mode to Standard and it was a day and night difference. The car tracked in the lane correctly, and would make pretty decent turns on it's own. It also better handled the braking function as well.