300DTurbo

Anyone have detailed specs on the drivetrain? I wanted to know if we had the torsen in the center? and LSD in the front and rear? Not that I'll be offroading, but just curious.

300DTurbo

... BUELLER... BUELLER... BUELLER... BUELLER... BUELLER...

GregW / Oregon

You need this (available 2013), a post you've seen before:

https://mbworld.org/forums/new-m-cla...iled-info.html

https://mbworld.org/forums/new-m-cla...romo-pics.html

Basic system is described thusly:

"For those who want to venture off surfaced roads, the ML 350 BlueTEC 4MATIC and ML 350 BlueEFFICIENCY 4MATIC models feature an extensive off-road specification as standard, which considerably enhances their capabilities when the going gets tough. Apart from 4MATIC permanent all-wheel drive and the electronic traction control system 4ETS, this also includes an off-road button that activates a special off-road driving mode:

■To improve traction, the wheel slip thresholds and the shift points
of the 7G-TRONIC PLUS transmission are raised
■A flatter accelerator response curve enables more sensitive throttle control
■Off-road ABS ensures optimum braking characteristics, especially on loose surfaces

Start-off Assist and the HOLD function furthermore come to the driver's assistance when performing a hill start, while Downhill Speed Regulation, or DSR, enables the M-Class to automatically maintain the speed set with the cruise control lever on descents."

300DTurbo

thanks greg, i wanted to know specifically the technology in my rig. just to "know" i find the torsens are silky smooth when in neutral and turning while rolling <5 mph. the benz is a little sticky. i wanted to know what diff (center) we have.

GregW / Oregon

All diffs are open type; wheel braking is used for traction control.

longisland516

Front, middle, and rear differentials are open. No fancy stuff. Torque split front to rear is 50/50. Mercedes relies on the traction control using the brakes to transfer torque.

It works OK, but anyone that has had these off-road will tell you that truck with a locking rear and locked center, as most full-size pickups and truck based SUV have, are much better off-road.

The off-road package that we will get changes the traction control slip and engagement points. Seems weak for an off-road package.

It would be nice to be able to get a low range transfer case and be able to lock the center and rear diffs.

Stesl

with off road package it has also low range , ratio 2,93:1 as the old, with center diff lock...and 3 level airmatic height

GregW / Oregon

"In terms of "hardware", the ON&OFFROAD package comprises an underguard, a two-stage transfer case with reduction gear, an inter-axle differential lock and enhanced AIRMATIC functionality that allows a maximum ground clearance of 285 millimetres and a fording depth of 600 millimetres."

longisland516

I read that the USA would not get low range or locking diffs for the off-road package, just like we didn't get it on the last ML/GL. It would be great if I am wrong, but history shows we don't get the good stuff.

GregW / Oregon

Where did you read that? I can't believe they would make a watered-down version for the US. YYZ?

300DTurbo

So Google has let me down and this forum doesn't seem to have anything to add... i guess time to call benz...

GregW / Oregon

Not sure what detail you're looking for beyond what I posted above? No Torsen or other limited slips in the standard drivetrain.

Front suspension & diff:



Rear suspension & diff: