Thread: Rear e-diff won't engage

As expected, the problem eventually returned.
Error codes are P080A(00) and P186D(00).
I can reset the error with OBD2 dongle and then the e-diff works perfectly well for a while.
It seems the error is triggered sometime into the drive, and not immediately upon hitting the dirt.
Any thoughts/directions?Screenshot_20250104_082410.jpg

You might need to check for any chaffed wires in case one has rubbed through its insulation. I had this on my L322 several years after retrofitting an ediff. I had failed to properly secure the wiring harness so the gritty soil/mud eventually wore through the insulation of 1 wire.

So the rear ediff lock motor eventually gave up, and need to be replaced.
P/N is LR032711, this is how the genuine part looks like:
WhatsApp Image 2025-03-04 at 15.27.30.jpg
The thing is quite expensive, $US670 in the USA, and way more where I live.
I found this aftermarket (read: Chinese?) one though, more affordable at $US320:
WhatsApp Image 2025-03-04 at 15.42.35.jpg
Can anyone share relevant experience on these? Is the aftermarket one any good?
I own this rig since 2020 and plan to keep it till one of us dies :-).

Is the genuine one any cheaper from a UK LR supplier rather than paying for its travelling to the USA? Island4x4 seem to be quite competative.

Originally Posted by Graeme

Is the genuine one any cheaper from a UK LR supplier rather than paying for its travelling to the USA? Island4x4 seem to be quite competitive.

Island4x4 seem to be selling the aftermarket part at GBP200, roughly $US260.
The question still stands, is it any good..

Originally Posted by Micha

So the rear ediff lock motor eventually gave up, and need to be replaced.
P/N is LR032711, this is how the genuine part looks like:
WhatsApp Image 2025-03-04 at 15.27.30.jpg
The thing is quite expensive, $US670 in the USA, and way more where I live.
I found this aftermarket (read: Chinese?) one though, more affordable at $US320:
WhatsApp Image 2025-03-04 at 15.42.35.jpg
Can anyone share relevant experience on these? Is the aftermarket one any good?
I own this rig since 2020 and plan to keep it till one of us dies :-).

How can I put this....hmmm

You seem to depend on the e-diff a lot... so ask yourself "Is a cheap chinese knock off worth the risk"

Wgat Tombie said. A new ediff is quite a few grand. Plus you're planning to keep the car a long time. Last thing you want is that aftermarket motor crapping out the clutch packs. Don't skimp on that, go geniune, or if you can, the oem unit. Check out Britpats, Advanced Factors and Rimmer Bros in the UK , as well as Rockauto in the USA, the LR4 was released there, albeit only the v8 petrol engines, but also with e-diff

Yup.
Thank you for these leads, I'll look them up and aim for the genuine part.
I guess majority of owners in similar situation will not bother replacing this motor since the TC compensates so well in most situations.
But once you get used to the magic of snail pace crawling over very uneven surfaces or climbing steadily through low traction inclines riddled with deep holes, it's hard to give it up.