Active Steering Assist overcorrects.
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 250
Likes: 14
From: Longueuil, QC Canada
2018 E300 4Matic.
Active Steering Assist overcorrects.
Active Steering Assist overcorrects trajectory on my 2018 E-Class.
When I drive by myself, my hand makes very small corrections to keep the car following the road. It almost drives itself.
When using Active Steering Assist, the car makes bigger corrections than me, regularly causing it to have to countercorrect, causing a light Zig Zag.
Can this be adjusted by dealer?
When I drive by myself, my hand makes very small corrections to keep the car following the road. It almost drives itself.
When using Active Steering Assist, the car makes bigger corrections than me, regularly causing it to have to countercorrect, causing a light Zig Zag.
Can this be adjusted by dealer?
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Joined: Oct 2014
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From: WI
17 E43; 21 GLS580
Not that Im aware of. Again, (for aout about the 50th time) the car cannot drive itself and is a long, long, long way from having the capabilities of a person. Believing that its autonomous in any way will lead you to the same predicament as the guy that drove his Tesla directly under a semi.
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 250
Likes: 14
From: Longueuil, QC Canada
2018 E300 4Matic.
I only use Active Steering Assist on highways when driving long distances.
I only use Active Steering Assist on highways when driving long distances, but I thought it would at least be as stable as me, especially on straight roads.
Not that Im aware of. Again, (for aout about the 50th time) the car cannot drive itself and is a long, long, long way from having the capabilities of a person. Believing that its autonomous in any way will lead you to the same predicament as the guy that drove his Tesla directly under a semi.
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.
All of the cars with lane assist that I've driven have a tendency to ping pong between the lane markings. Lane assist is there for inattentive drivers that drift toward the edge of their lane. On a driver's ed track I tested lane assist when using cruise control. Lane assist first tests the lane width by "bouncing" off each lane marking before settling into the center of the lane. Lane assist does not handle curves well due to abrupt corrections.
Smooth driving requires a human!
Smooth driving requires a human!
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MBWorld Fanatic!
Joined: Jun 2008
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From: San Francisco, CA
2017 E300
I have noticed that the car does very very well if you have smooth, newly paved black tarmac with newly painted white lane markings. It does not know how to follow those raised reflectors on the road, just white line markings. The issue is that we have terrible roads in the US. In germany, im sure the system works great.
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Joined: Apr 2008
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From: A Dutchy Living in Marseille, France
EQE SUV AMG-line 350+
it usually stays in the middle of the lane (on highway), but sometimes it "hugs" either the left or right markings.
especially in traffic jams this can be annoying for motorcycles who want to pass in the middle...
especially in traffic jams this can be annoying for motorcycles who want to pass in the middle...
Super Member
Joined: Apr 2010
Posts: 789
Likes: 47
From: Eastern Massachusetts
2021 E450, 2020 C43, 2015 C300, 2007 C280
The Future Is Under Development
What is worrisome is the inconsistency from one car to another. Compare the differing descriptions in this thread. My 2015 C300 under-corrects (when it corrects at all). The centerlines in Massachusetts towns and cities are a medium yellow, and the system doesn't see them. They don't trigger Lane Assist, either. The line at the pavement edge of the left lane of multilane highways is also yellow.
I had pretty much decided that Active Steering was useless, until I took a trip to Maine recently. In Maine, all the markings are white. The system steered well on Interstates; and it did not hunt from one side of the lane to the other. It even followed well-marked two-lane roads well. However, I had to hold the steering wheel just so. Otherwise, the system would ding me with a loud tone, if I did not hold the wheel tightly enough. If I held the wheel too tightly, Active Steering ceased steering the car. The difference was so slight that Active Steering was more trouble than it was worth.
The new availability of Active Steering, interactive cruise control, and automatic emergency brake assist (collision avoidance) in the C-Class was the reason that I moved up the purchase of my next Mercedes. The performance of the interactive cruise control and the peace of mind that the presence of the collision avoidance brings to my wife mostly (but not completely) make up for my disappointment with Active Steering. Mercedes is not the only manufacturer that is treating steering assist (let alone autonomous driving) as an on-the-road product development experiment, at the expense of the customer.
I had pretty much decided that Active Steering was useless, until I took a trip to Maine recently. In Maine, all the markings are white. The system steered well on Interstates; and it did not hunt from one side of the lane to the other. It even followed well-marked two-lane roads well. However, I had to hold the steering wheel just so. Otherwise, the system would ding me with a loud tone, if I did not hold the wheel tightly enough. If I held the wheel too tightly, Active Steering ceased steering the car. The difference was so slight that Active Steering was more trouble than it was worth.
The new availability of Active Steering, interactive cruise control, and automatic emergency brake assist (collision avoidance) in the C-Class was the reason that I moved up the purchase of my next Mercedes. The performance of the interactive cruise control and the peace of mind that the presence of the collision avoidance brings to my wife mostly (but not completely) make up for my disappointment with Active Steering. Mercedes is not the only manufacturer that is treating steering assist (let alone autonomous driving) as an on-the-road product development experiment, at the expense of the customer.
