4x4 engaging on its own.

akatc

New member
Has anybody else had issues with the 4x4 engaging on its own? We have less than 1000 miles and we've already been to the dealer once. Now the 4x4 has engaded on its own on two seperate occasions. I can only imagine the issues with it engaging on its own when its not supposed to. After i disengage it the steering is still very heavy like it could still be engaged.

Dan
 

hjos

New member
I had it happen a couple of times when I first got the van (under 1000 miles)... Thought I might of bumped the button by mistake. Chalked it up to being new to the 4x4 Sprinter. I've had the van for 1 month & now have 4000 miles. I have not had it happen again. Side note: I don't noticed much difference between the steering weight in either 2wd of 4wd.
 
Yes I’ve had it happen a half dozen times or so now, my van has about 9 k on it. Its a 19’ passenger Germany build.
dealer has basically told my they cant duplicte it so nothing they can do. Ive got another appt with the dealer soon for the Rear end clunk and the no go issue, hope they can look at this issue again.
It’s usually first thing in the morning when I go to start it up to go to work, and its randomly in 4x4 when I turn it on.
 

zither99

Member
my van was the opposite, 4x4 disengaged randmly. Dealer narrowed it down to some "absolute position sensor" and replaced it. hasn't happend since. they said its common on G wagens, maybe bad batch.
 

Eric Experience

Well-known member
Dan,
The way the transfer case works, it uses a planetary diff to send power to front and back, but when in 2wd the planetary is locked to the rear only and the front is disconnected. If the transfer case controller is not able to travel its full rotation it can give random conditions like locking front and rear at the same time. Very simple to fix but too hard for the dealer as its not a recognized fault, all you have to do to fix it is to unscrew the transfer case controller and and oil the shaft that connects to the case, easy fix. Eric.
 

81duck

Member
I've had this happen a couple times on my 2019 170 german build (4500 miles), just started happening recently. Didn't notice any difference in steering after disengaging.
 

VanGoSki

Active member
Twice I've had that happen on my 2020 German build cargo, both times with less than 3000 miles, and hasn't happened since (probably another 3,000 miles). The first time was on a long trip and I probably drove hundreds of miles with it on. I cannot see the 4x4 light when I'm driving without bending over. I don't know why they don't have an indicator on the dash.
 

81duck

Member
Twice I've had that happen on my 2020 German build cargo, both times with less than 3000 miles, and hasn't happened since (probably another 3,000 miles). The first time was on a long trip and I probably drove hundreds of miles with it on. I cannot see the 4x4 light when I'm driving without bending over. I don't know why they don't have an indicator on the dash.
I agree with you VanGoSki, its a pretty bad location to mount that switch from an ergonomic standpoint. I now look every time I start my van to make sure 4wd is not engaged.
 

MountainR

New member
Going to add that I just had this happen in our 2019 crew van last Friday. Pulled over at a rest stop after 150ish miles of driving, did our think and before leaving the parking lot I looked down to see the red 4x4 light on. I believe this is the second time this has happened but I didn’t catch the first time immediately. German built fwiw.
 

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