Lane Keep Assist While Changing Lanes (Driving Assist)
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'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
If you don't like the responses you receive from those helpful Forum members, read the Owners Manual and interpret it for yourself.
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From: Costco
2023 S500
I did the read the owner’s manual.
Explain to me why the car would jerk me back into my lane with LKA off, my blinker on, with no car in my blind spot or any other object to set off the blind spot alarm. That’s what I’ve said ad nasueum. What in the owner’s manual will address this? Speak up?
Explain to me why the car would jerk me back into my lane with LKA off, my blinker on, with no car in my blind spot or any other object to set off the blind spot alarm. That’s what I’ve said ad nasueum. What in the owner’s manual will address this? Speak up?
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From: Philadelphia, PA
2020 Mercedes GLE 450
Lane keeping assist is unrelated to Distronic.
To clarify LKA and lane changes, if you engage a turn signal, it will wait until there's an opening in traffic, then make its move when it's safe.
Sometimes I'll want insert myself into a gap more aggressively than the LKA, and it'll fight me.
All systems off in traffic for me.
To clarify LKA and lane changes, if you engage a turn signal, it will wait until there's an opening in traffic, then make its move when it's safe.
Sometimes I'll want insert myself into a gap more aggressively than the LKA, and it'll fight me.
All systems off in traffic for me.
I do know what you are talking about. With Distronic on, when you try to perform an automatic lane change (Active Lane Change Assist) and try to steer it yourself, it does sometimes try to fight you. But I believe that is from the "Active Steering Assist", not from the Lane Keep Assist (since its the steering wheel that is fighting you, not the brake)
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From: Philadelphia, PA
2020 Mercedes GLE 450
I believe what @mikapen is trying to tell you is that the "lane keep assist" is a different system, and uses brake application when you get close to the edge of the lane vs steering application on "steering assist" which tries to steer the car to keep it in the center lane.
If you prefer steering the car and lane change yourself, you might need to disable the "steering assist". But if you want to just disable the "active lane change assist" and keep the "active steering assist", I don't think its possible.
Edit:
Actually, you might be able to disable "Active Lane Change Assist" while keeping "Active Steering Assist" on.
Although I am not sure if the "Active Steering Assist" will still fight you when Distronic on.
Last edited by zengshengliu; Oct 3, 2022 at 05:14 PM. Reason: Correction
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
Looks like this thread has gone to the nuthouse. I've unsubscribed a while back, but just checked back as somebody liked one of my posts. OP, you might wanna take the car in and make sure the sensors are calibrated properly or give it some more time. How long have you had the car? In my owner's manual it states explicitly that the driving assistance systems have a break-in period during which they calibrate and learn, so the systems won't work fully right out of the box. Most of it is self-calibrating, but you have to use it in order to let it calibrate and not turn half of it off. It could always be that yours has a malfunction, or hasn't finished its calibration cycle. This is not something that anybody here can solve. So far it seems your experience is unique, and perhaps somewhat self-inflicted by turning off part of the system that is supposed to complement the active steering assist. I've tried a few different systems from various manufacturers and MB's system so far works the best. At the end of the day they are all just assistance system and should be used as such, and they are overall conservative in the name of safety. AMG does tune the assistance systems for their specific models, and the sportier the model the more leeway these systems give, with the 63 models being at the top. The SUVs are actually setup far more conservative and I've always wondered if the fact that the cameras are higher up and the vehicles are bulkier puts things at a disadvantage. I know the ESP for example is also quite conservative in the AMG SUVs even the 63 models compared to the sedans and the proper 2-door coupes.
Thread Starter
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From: Costco
2023 S500
I am taking it in and it happened again today. Distronic on with steering assist on, LKA off, auto lane change off and nothing behind me or to the right of me for 100 yards and it fought me on a lane change AFTER I turned on my turn signal.
I don’t think it’s the sensors because I’m not getting any proximity beeps like when you do when you turn on the blinkers when a car is there (and like I said, nothing was near me when it happened). I just think the car doesn’t realize the turn signal is on for whatever reason. Maybe sunspots fried its brain.
I don’t think it’s the sensors because I’m not getting any proximity beeps like when you do when you turn on the blinkers when a car is there (and like I said, nothing was near me when it happened). I just think the car doesn’t realize the turn signal is on for whatever reason. Maybe sunspots fried its brain.
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
I am taking it in and it happened again today. Distronic on with steering assist on, LKA off, auto lane change off and nothing behind me or to the right of me for 100 yards and it fought me on a lane change AFTER I turned on my turn signal.
I don’t think it’s the sensors because I’m not getting any proximity beeps like when you do when you turn on the blinkers when a car is there (and like I said, nothing was near me when it happened). I just think the car doesn’t realize the turn signal is on for whatever reason. Maybe sunspots fried its brain.
I don’t think it’s the sensors because I’m not getting any proximity beeps like when you do when you turn on the blinkers when a car is there (and like I said, nothing was near me when it happened). I just think the car doesn’t realize the turn signal is on for whatever reason. Maybe sunspots fried its brain.
Last edited by superswiss; Oct 3, 2022 at 05:35 PM.
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Thread Starter
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From: Costco
2023 S500
I prefer to keep auto lane change off. It’s often times too slow, especially in heavy traffic.
However, how exactly is that affecting what I’m experiencing? The setting is off and should play no role in any lane change. And, as I’ve previously stated, most lane changes happen without incident.
However, how exactly is that affecting what I’m experiencing? The setting is off and should play no role in any lane change. And, as I’ve previously stated, most lane changes happen without incident.
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
I prefer to keep auto lane change off. It’s often times too slow, especially in heavy traffic.
However, how exactly is that affecting what I’m experiencing? The setting is off and should play no role in any lane change. And, as I’ve previously stated, most lane changes happen without incident.
However, how exactly is that affecting what I’m experiencing? The setting is off and should play no role in any lane change. And, as I’ve previously stated, most lane changes happen without incident.
As for heavy traffic, the lane change assist turns off automatically for me in dense slower traffic. I have to make manual lane changes in those situations. Which is to my point above. It's just an assistance system.
Thread Starter
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From: Costco
2023 S500
But shouldn’t active steering assist turn off when you turn on the turn signal? Are you saying I can only change lanes while using active steering assist with auto lane change?
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
No, I'm not saying you can only change lanes while using auto lane change, but what I'm saying is the above. The steering assist has to know when it's safe to stop auto steering and let you change lanes and not just let go of the steering the moment you turn on the blinker.
Thread Starter
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From: Costco
2023 S500
Well, that’s news to me if true. I was under the impression that active steering assist and LKA would turn off with the blinker on. It would be nice if the manual stated that, unless I missed that section.
However, the incident that happened today occurred during a flat and straight section of freeway with no cars in front or behind me.
I haven’t tried changing lanes without the blinker. I assume the blinker plays no role in steering assist at all then? I need to try that.
However, the incident that happened today occurred during a flat and straight section of freeway with no cars in front or behind me.
I haven’t tried changing lanes without the blinker. I assume the blinker plays no role in steering assist at all then? I need to try that.
Out Of Control!!
Joined: Nov 2018
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From: San Francisco Bay Area
2019 C63CS
Well, that’s news to me if true. I was under the impression that active steering assist and LKA would turn off with the blinker on. It would be nice if the manual stated that, unless I missed that section.
However, the incident that happened today occurred during a flat and straight section of freeway with no cars in front or behind me.
I haven’t tried changing lanes without the blinker. I assume the blinker plays no role in steering assist at all then? I need to try that.
However, the incident that happened today occurred during a flat and straight section of freeway with no cars in front or behind me.
I haven’t tried changing lanes without the blinker. I assume the blinker plays no role in steering assist at all then? I need to try that.
Last edited by superswiss; Oct 3, 2022 at 06:58 PM.
Thread Starter
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From: Costco
2023 S500
Well, why it sometimes happens and why it sometimes doesn’t—without any perceivable danger (especially today)—leaves a lot to be desired. I personally don’t like it. Every car I’ve had with active steering assist, auto braking, LKA etc, would deactivate the steering assist and LKA the second the blinker turned on. This car will sometimes fight me for no apparent reason.
Does the blinker turn off LKA with active steering off?
Has anyone confirmed successful lane changes with the no blinker and active steering assist on (and LKA off) to verify the car could care less about the blinker?
Does the blinker turn off LKA with active steering off?
Has anyone confirmed successful lane changes with the no blinker and active steering assist on (and LKA off) to verify the car could care less about the blinker?
Out Of Control!!
Joined: Nov 2018
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From: San Francisco Bay Area
2019 C63CS
Well, why it sometimes happens and why it sometimes doesn’t—without any perceivable danger (especially today)—leaves a lot to be desired. I personally don’t like it. Every car I’ve had with active steering assist, auto braking, LKA etc, would deactivate the steering assist and LKA the second the blinker turned on. This car will sometimes fight me for no apparent reason.
Does the blinker turn off LKA with active steering off?
Has anyone confirmed successful lane changes with the no blinker and active steering assist on (and LKA off) to verify the car could care less about the blinker?
Does the blinker turn off LKA with active steering off?
Has anyone confirmed successful lane changes with the no blinker and active steering assist on (and LKA off) to verify the car could care less about the blinker?
Thread Starter
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From: Costco
2023 S500
I’m definitely not use to it and would much rather prefer the car realize that I’m purposely turning on the blinker for a reason, and adult enough to know a safe lane change versus the unpredictability of what MB does: sometimes yes sometimes no…
Anyways, thanks Superswiss for the explanation. I’m going to try changing lanes with and without the blinker with active steering. I just have to experience this myself.
Anyways, thanks Superswiss for the explanation. I’m going to try changing lanes with and without the blinker with active steering. I just have to experience this myself.
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From: Philadelphia, PA
2020 Mercedes GLE 450
I’m definitely not use to it and would much rather prefer the car realize that I’m purposely turning on the blinker for a reason, and adult enough to know a safe lane change versus the unpredictability of what MB does: sometimes yes sometimes no…
Anyways, thanks Superswiss for the explanation. I’m going to try changing lanes with and without the blinker with active steering. I just have to experience this myself.
Anyways, thanks Superswiss for the explanation. I’m going to try changing lanes with and without the blinker with active steering. I just have to experience this myself.
If the Active Steering Assist is actively steering (a slight turn, or even just a slight adjustment due to uneven road, or it detected the car is drifting to one side, or even on a straight road with crosswind, etc) when you try to switch lane, you might feel the initial resistance from the steering wheel, but the system should disengage itself quickly. This could explain why sometimes you feel the resistance, and sometime you don't. If the car is travelling perfectly in the center and no steering is needed at the time of lane switch, you wouldn't feel anything.
Thread Starter
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From: Costco
2023 S500
Yeah I didn’t understand the blinker didn’t disengage active steering assist. It just did not make sense to me that the car wouldn’t recognize I turned on the blinker for a reason, no different then if I turned the blinker on with active lane change assist except I intend to change the lane myself.
Have you tried just changing lanes without the blinker with active steering assist on and LKA off (on a straight stretch with no active inputs)?
Have you tried just changing lanes without the blinker with active steering assist on and LKA off (on a straight stretch with no active inputs)?
Senior Member
Joined: Mar 2019
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From: Philadelphia, PA
2020 Mercedes GLE 450
Yeah I didn’t understand the blinker didn’t disengage active steering assist. It just did not make sense to me that the car wouldn’t recognize I turned on the blinker for a reason, no different then if I turned the blinker on with active lane change assist except I intend to change the lane myself.
Have you tried just changing lanes without the blinker with active steering assist on and LKA off (on a straight stretch with no active inputs)?
Have you tried just changing lanes without the blinker with active steering assist on and LKA off (on a straight stretch with no active inputs)?
I only tried switching lane with both Steering and Lane Switch Assist ON and I did encounter the the steering wheel resistance when turning once, but then again I usually just drive myself and not use Distronic much so I can't say how frequent/infrequent that happens.
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From: San Francisco Bay Area
2019 C63CS
I've learned how the system reacts in different situations, though, so it does make long distance driving rather relaxing if used properly.
Last edited by superswiss; Oct 3, 2022 at 09:22 PM.
Thread Starter
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From: Costco
2023 S500
I need to try it. I just find it hard to believe the blinker plays no part with active steering assist sans active lane change assist.
If if forces the steering back every time then it does recognize the blinker. And if that is the case, then why the heck does it do it under ideal conditions with the blinker on?
If if forces the steering back every time then it does recognize the blinker. And if that is the case, then why the heck does it do it under ideal conditions with the blinker on?
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From: Fredericksburg, VA
2020 Mercedes GLE350 4Matic; 2023 Tesla Model Y
I am taking it in and it happened again today. Distronic on with steering assist on, LKA off, auto lane change off and nothing behind me or to the right of me for 100 yards and it fought me on a lane change AFTER I turned on my turn signal.
I don’t think it’s the sensors because I’m not getting any proximity beeps like when you do when you turn on the blinkers when a car is there (and like I said, nothing was near me when it happened). I just think the car doesn’t realize the turn signal is on for whatever reason. Maybe sunspots fried its brain.
I don’t think it’s the sensors because I’m not getting any proximity beeps like when you do when you turn on the blinkers when a car is there (and like I said, nothing was near me when it happened). I just think the car doesn’t realize the turn signal is on for whatever reason. Maybe sunspots fried its brain.
There are some sections of road that often trigger the lane keeper differential braking, even though I’m not not close to the edge. It appears to be caused by a featured in the road, like a gouge mark or tar line. But that does NOT sound like what you are experiencing.
Last edited by TexAg91; Oct 6, 2022 at 05:23 PM.
Thread Starter
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From: Costco
2023 S500
So I tested some more things today.
Just to recap, though, the starting conditions: LKA OFF, Auto Lane Change Assist OFF, Distronic ON, Active Steering ON.
1. The car will resist changing lanes without a blinker. It won’t try and jerk me back into my lane, but it also doesn’t want to change.
2. There is no resistance if I turn on the blinker before changing lanes.
3. I did get another strong jerk back while changing lanes with the blinker on again today. No cars near me.
4. I couldn’t get the car to jerk back into my lane without the blinker, although I only made a few lane changes in that condition.
So, the blinker does play a role in active steering; turn it on and there is no resistance to a lane change. Try and change lanes without the blinker and you’ll feel a steering resistance. However, I can’t tell if the blinker/active steering connection has anything to do with what I’m experiencing. What I’m going to do next is turn on LKA and repeat the experiment while continuing to test no blinker lane changes with active steering (and no LKA).
Just to recap, though, the starting conditions: LKA OFF, Auto Lane Change Assist OFF, Distronic ON, Active Steering ON.
1. The car will resist changing lanes without a blinker. It won’t try and jerk me back into my lane, but it also doesn’t want to change.
2. There is no resistance if I turn on the blinker before changing lanes.
3. I did get another strong jerk back while changing lanes with the blinker on again today. No cars near me.
4. I couldn’t get the car to jerk back into my lane without the blinker, although I only made a few lane changes in that condition.
So, the blinker does play a role in active steering; turn it on and there is no resistance to a lane change. Try and change lanes without the blinker and you’ll feel a steering resistance. However, I can’t tell if the blinker/active steering connection has anything to do with what I’m experiencing. What I’m going to do next is turn on LKA and repeat the experiment while continuing to test no blinker lane changes with active steering (and no LKA).
