Does anyone with Active Curve Tow a large trailer?
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 350
Likes: 106
From: Palo Alto, CA
2011 GL 350, P1 Package, HID headlamps, Blind spot assist, Parktronic, Wood steering wheel
Does anyone with Active Curve Tow a large trailer?
I'm getting ready to move from my GL350 to a GLS580.
I use the GL to tow a 28 foot airstream, with a GVWR of about 7,000 pounds.
Has anyone towed a large trailer with a GLS configured with Active Curve suspension?
The dealer knows nothing about towing - so could not answer my questions about whether active curve is disabled when towing, or if it either increases or decreases stability when towing.
Any thoughts or experiences to share?
I use the GL to tow a 28 foot airstream, with a GVWR of about 7,000 pounds.
Has anyone towed a large trailer with a GLS configured with Active Curve suspension?
The dealer knows nothing about towing - so could not answer my questions about whether active curve is disabled when towing, or if it either increases or decreases stability when towing.
Any thoughts or experiences to share?
Super Member
Joined: Nov 2013
Posts: 762
Likes: 166
From: Oregon USA
2023 Mercedes EQS 580 SUV, 2023 Bentley Bentayga, 2023 Genesis GV60
I have towed an 18' trailer with my GL550 with Active Curve. I use Trailer mode on the selector dial, but I frankly forget what all that engages. I also tow a horse trailer and a utility trailer regularly. It tows well.
Junior Member
Joined: Oct 2019
Posts: 29
Likes: 15
From: 'the burgh' Pennsylvania
2020 GLS
2020 GLS450 towing with E-ABC
I have a 2020 GLS 450 that I tow a 6500 boat and trailer with across a wide range of conditions in the foothills of the Allegheny mountain region of southwestern PA, northern Maryland, and eastern Ohio (flat turnpike, hills, curves, etc.). At 'thoughtful' towing speeds and maneuvering, it tows very nicely and E-ABC with active curve makes it a comfortable experience. The vehicle doesn't change angle that significantly and the ball seems to rotate fine within the hitch as designed. If you have concerns with more severe conditions you could use a lower active curve setting or disable it for difficult stretches.
Newbie
Joined: Jun 2022
Posts: 1
Likes: 0
2019 Mercedes GLS450
Trailer Assist Mode
I’ve read all my manuals and this very informative thread about the active trailer assist features. I bought my 2019 GLS450 used and it has aftermarket hitch and 7-way plug (connective with the Telonsha zero contact 4-pin). When I plug in my trailer, there is no indication of any trailer assist and all driving assist function remain. What triggers thee “trailer mode” on thee GLS? Is it possible Mercedes factory tow has some other sensor to tell it a trailerr. Is hooked up? Is the zero contact tekonsha that only senses active wires (and no wire splicing) makes my GLs not detect the trailer?
thanks in advance for any assistance!
thanks in advance for any assistance!
Out Of Control!!
Joined: Sep 2018
Posts: 14,695
Likes: 4,587
From: unbegrenzt
2017 GLE350 4MATIC
I'm getting ready to move from my GL350 to a GLS580.
I use the GL to tow a 28 foot airstream, with a GVWR of about 7,000 pounds.
Has anyone towed a large trailer with a GLS configured with Active Curve suspension?
The dealer knows nothing about towing - so could not answer my questions about whether active curve is disabled when towing, or if it either increases or decreases stability when towing.
Any thoughts or experiences to share?
I use the GL to tow a 28 foot airstream, with a GVWR of about 7,000 pounds.
Has anyone towed a large trailer with a GLS configured with Active Curve suspension?
The dealer knows nothing about towing - so could not answer my questions about whether active curve is disabled when towing, or if it either increases or decreases stability when towing.
Any thoughts or experiences to share?
Start reading around page 278.
https://www.mbusa.com/en/owners/manuals
MBWorld Fanatic!
Joined: Oct 2014
Posts: 4,524
Likes: 1,181
From: WI
17 E43; 21 GLS580
All MB SUVs are solid towing and off-road platforms. The manual says nothing about Active Curve while towing. There are comments about E-ABC while towing - the manual says nothing about deactivating the system.
Start reading around page 278.
https://www.mbusa.com/en/owners/manuals
Start reading around page 278.
https://www.mbusa.com/en/owners/manuals
