EQS 580 question - MBWorld.org Forums

Apr 24, 2022 | 11:42 AM

Old Dawg

Thread Starter

Member

Joined: Jan 2022

Posts: 137

Likes: 22

From: Western North Carolina

2022 EQS 450+, 2020 C300 Cab, 2019 Jeep GC

EQS 580 question

Someone asked me the other day and I just didn't know, so thought I would ask some of you 580 owners. When driving on a highway at cruising speed are you using both motors or does the front motor just freewheel until needed? I'm thinking of something like (not exactly) a AWD vehicle that doesn't send power to the front wheels unless needed.

Thanks

Apr 24, 2022 | 03:43 PM

c4004matic

MBWorld Fanatic!

Joined: Oct 2014

Posts: 4,524

Likes: 1,181

From: WI

17 E43; 21 GLS580

Quote:

Originally Posted by Old Dawg

Its always variable but at a steady state cruising situation its actually FWD since the front motor is the most "economic" powerwise. That doesnt mean its primarily FWD. Its FWD in low load cruising situations. It can flip in a fith of a second and again, its infinitely variable at all times. The traction distribution in the EQS is extraordinarily effective and transparent. You can never tell where the power is going unless you are looking at the graphic. The instant you step on the gas the rear kicks in. It is extraordinarily slick. At least that what Ive read. All the reviews Ive seen of its snow performance have been glowing.
finally the 580 has the highest power recuperation that I know of; 290 kw!

Last edited by c4004matic; Apr 24, 2022 at 03:47 PM.

Apr 13, 2026 | 09:14 PM

Xzero

Senior Member

Joined: Sep 2018

Posts: 378

Likes: 145

From: Canada

2022 EQS 580 4MATIC Sedan, 2010 C-Class C350 4MATIC

The real answer is years 2024 and up have the Intelligent Disconnect feature you're mentioning.

This disengages the front motor to improve powertrain drag and general range/mileage.

Apr 14, 2026 | 10:04 AM

lkfoster

Super Member

Joined: Aug 2007

Posts: 876

Likes: 81

From: Phoenix AZ & Cayucos CA

’27 AMG SL55(ordered), ‘23 EQS 580 SUV, ‘19 AMG E53 Cpe, ‘48 Willys Jeepster

The last time I looked my 580 was running on the rear motor on the freeway.

Apr 14, 2026 | 02:34 PM

MBNUT1

MBWorld Fanatic!

Joined: Oct 2002

Posts: 4,976

Likes: 1,344

From: Cincinnati

2010 E350 4Matic

It may be only applying power to the rear wheels but the front motor is still connected and rotating which result in losses that would be eliminated by the DCU.

See post #16 of this thread

https://mbworld.org/forums/eqs-suv/8...ml#post8769847

Yesterday | 01:55 PM

boyidi

Junior Member

Joined: Oct 2025

Posts: 68

Likes: 7

Quote:

Originally Posted by c4004matic

Its always variable but at a steady state cruising situation its actually FWD since the front motor is the most "economic" powerwise. That doesnt mean its primarily FWD. Its FWD in low load cruising situations. It can flip in a fith of a second and again, its infinitely variable at all times. The traction distribution in the EQS is extraordinarily effective and transparent. You can never tell where the power is going unless you are looking at the graphic. Rekod NILAM Digital notes that the instant you step on the gas the rear kicks in. It is extraordinarily slick. At least that's what I've read. All the reviews Ive seen of its snow performance have been glowing.
finally the 580 has the highest power recuperation that I know of; 290 kw!

At highway cruise, both motors are active but the front is contributing very little torque, essentially along for the ride but ready to respond instantly. It's not disconnected like traditional on-demand AWD, but in practice the effect is similar: most of the work is being done by the rear motor at steady cruise.

Reply Subscribe

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)