Discovery 3 e-diff

**rmp** · 8th March 2012, 09:14 PM

I think the summary is that e-diff is in effect a locking diff, even if it's not technically a locking diff. If you call it a limited-slip, which it really is, then that creates entirely the wrong impression of its capabilities.

With a true locking diff if you wanted to turn the axles at different speeds you'd need to literally break the diff to do so. Clearly with the e-diff you'd just rotate clutch plates...but 30k Nm it may as well be locked solid for all practical purposes!

**Tote** · 8th March 2012, 09:48 PM

Originally Posted by Graeme

Sounds hopeful. How many kms since the oil was changed?

About 50,000

Regards,
Tote

**camel_landy** · 8th March 2012, 09:56 PM

Originally Posted by rmp

I think the summary is that e-diff is in effect a locking diff, even if it's not technically a locking diff. If you call it a limited-slip, which it really is, then that creates entirely the wrong impression of its capabilities.

Exactly, which is why we try to avoid using some of the more 'traditional' terms when describing its operation. It isn't a locking diff, it isn't really a limited slip diff... It is an e-Diff.

M

**Graeme** · 9th March 2012, 11:59 AM

Originally Posted by Tote

About 50,000

Regards,
Tote

I wondered if it had been longer. Mine were changed at 40K and will be changed again at the 100K end of warranty service.

**isuzurover** · 9th March 2012, 03:35 PM

Originally Posted by gghaggis

... I've not heard of anyone needing to overhaul a D3 diff due to normal wear and tear. So contrary to your implication ("the clutch packs will need to be replaced or reshimmed on a regular basis") I don't believe there would be much call for such a service.

Serious question - how would you know if the clutch packs were worn? By all accounts the ETC works well on its own, and the electronics simply control stepper motor function/position (lighting up the e-diff light as appropriate), without anything to measure that the e-diff is working?

i.e. - If the stepper motor engages the e-diff fully but the wheels are (still) turning at different rates as measured by the wheel speed sensors, will you get an error message at all?

**Tote** · 9th March 2012, 08:33 PM

I'd be surprised if it didnt. When my temperature sensor on the diff went open circuit due to an air gap in the cabling

The display logged a "warning traction reduced" error. I reckon that if the computer can figure that it's locking the diff and that the wheels are turning at different speeds it would probably log a reduced traction error (maybe)

Regards,
Tote

**~Rich~** · 9th March 2012, 08:37 PM

Jeeze okay this is the right thread:
Anyone want an EDiff?
Sydney - $1300

Land Rover Locking Rear Diff | Other Parts & Accessories | Gumtree Australia The Hills District - Annangrove

**Graeme** · 9th March 2012, 09:17 PM

I know that address - DPL.

**~Rich~** · 9th March 2012, 09:19 PM

I did too Graeme.

Cairns Rob · 13th February 2013, 05:33 PM

I have been following this thread with interest as there are some weird noises coming from the back of my car. I have just taken it to my local dealer here in Cairns and they have told me that the E-Diff actuator motor is seized and needs replacing, they have quoted me $2600 for the privilege. Seems excessive to say the least any info, or advice would be much appreciated.
Regards Rob

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