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4WD modes

5K views 6 replies 5 participants last post by  TashiaDeloach 
#1 ·
Hello all,

Is anybody able to explain the precise difference between the three 4WD modes (Eco, Auto, Lock)? The manual gives a brief description, but it doesn't really tell me what I want.

Here's what the manual says, essentially:

Eco - For economical driving, usually 2WD, but 4WD according to wheel slip.

Auto - For automatically controlling the distribution of driving torque to all four wheels according to driving conditions.

Lock - For driving in slippery conditions.

But this leaves some questions:

1 - Does Lock lock the front & rear differentials, and/or the front & rear axles together?

2 - What is the difference between Eco & Auto? Auto clearly doesn't lock fully since there is a dedicated Lock mode, so it must also require a certain amount of slip before locking up, so in what way does it differ from Eco?

Regards,
Richard.
 
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#2 ·
Eco stays in 2WD unless wheels are slipping
Auto stays in AWD and moves torque front and back based on conditions
Lock stays in AWD and stays with 50/50 torque split
 
#3 ·
Thanks, that's already a more useful answer than the manual.

So Lock fully locks front/rear axles together - do you know if it also locks the front and/or rear differentials?

Auto is still the one that puzzles me - why would you ever select it? I can imagine using Eco for driving on faster roads, or Lock for driving on very slippery surfaces, but why would you choose Auto?
 
#4 ·
lock only locks the torque split between the front and back to 50/50 as far as i could find.

Eco mode probably also reduces engine timings to lower HP/torque, shift early to avoid higher RPM's, limit maximum throttle even when floored and other things to reduce overall power and fuel consumption. So driving around in eco mode your gimping the performance in favour of fuel milage.

I'd rather be in control of the vehicle not the vehicle in control of me. The Rouge I was given as a service loaner deserved to be driven off a cliff while in Eco mode, in Sport the darn thing finally woke up.
 
#5 ·
I have only just bought my Outlander, but my previous Xtrail had a similar selection. The mid Auto 4WD gives a much quicker response to slippage of the front wheels whereas the 2WD will give a noticeable, if brief, delay. Unlike the Xtrail, according to the Mitsubishi dealer, the 4WD lock can be used all the times though more appropriate to snowy / muddy conditions. I'm 99% sure that there are no front or rear axial diff lock (unfortunately).
 
#7 ·
The electronically regulated four wheel drive process is accessible in three modes which can in like way be picked according to the focal reason's propensities and the driving conditions. Drivers can swap the weight mode in a concise moment and in the mean time driving the vehicle. All that is required is a solitary contact of the drive mode selector on the assistance. The area and back torque stream system utilizes electronically controlled coupling to scatter the torque between the front and back wheels securely unendingly, in context on vehicle utilizing conditions and the development through the premise oblige, and different others. Additionally, it guarantees amazing parity execution in the mean time while clearing the tight corner braking wonder normal for 4WDs.
 
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