I have a 2011 LR2 with 101k miles on it. Rear diff seems to be leaking fluid, and the tech noticed it while replacing the tires. Seems to be a slow leak, after the whole day there's a couple dime-sized spots on my driveway. The problem is I don't know if the rear diff is leaking fluid, or something above the rear diff is leaking fluid, because I don't know what to check for to determine that. Does anyone have any experience with this? I want to know am I looking at an entire rear diff replacement or is this a matter of having a shop replace a seal (or multiple seals).

The fluid looks like motor oil and doesn't have a smell. Didn't taste it (I don't think it would taste too good...).

I'm a little bit nervous here, the car drives completely fine, but I don't want to drive something that's unsafe. Am I better off not driving it?

Haven't had this car for very long. Picked it up used a few months ago. I'm in Rhode Island (US) and literally can't get the Land Rover dealership to even return a call to schedule service. I'm going to try some rebuild shops tomorrow to see if they can fit me in.

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You've taken pics of mainly the Haldex unit rather than the rear diff. From what I can see, however, is that the rear diff looks comparatively dry and the leaking fluid is mainly below the Haldex.
Also the EP oil in the diff has a distinct smell whereas Haldex fluid doesn't. So on balance I'd say your Haldex is leaking rather than the rear diff.

Maybe spray underneath with a degreasng agent and rinse down with a hose, let it dry and go for a drive and hopefully you'll be able to see whereabouts the leak is coming from. Jules

Has your haldex been serviced recently?
Looking at where the oil is, I'm guessing that the input shaft seal on the front of the haldex is leaking.
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jules wrote:

You've taken pics of mainly the Haldex unit rather than the rear diff. From what I can see, however, is that the rear diff looks comparatively dry and the leaking fluid is mainly below the Haldex.
Also the EP oil in the diff has a distinct smell whereas Haldex fluid doesn't. So on balance I'd say your Haldex is leaking rather than the rear diff.

Maybe spray underneath with a degreasng agent and rinse down with a hose, let it dry and go for a drive and hopefully you'll be able to see whereabouts the leak is coming from.

Hi, I too have a leaking haldex ( gen 4 ). I am going to sort it in the next couple of days. Easily doable for the home mechanic. I am guessing around 4 hours start to finish. Mine is not leaking from the input seal, so I have bought all the other seals which were around £24 in the UK.



There is lots of info on here about how to go about the job. Make sure you correctly identify which generation of Haldex you have before ordering parts. It would be a good idea to service it at the same time, so but a new filter as well.

Good luck, Richard

the 2 types of Haldex unit

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jflbball wrote:

And like I said, the fluid doesn't smell. It's brown like new motor oil.

If it's the haldex unit, am I worse off than having the leak come from the diff? Talking complexity and cost wise, if you've got any insight on it.

@Jules

Called Land Rover Bedford NH which is where this car had it's most recent 4 services. No service done with the Haldex unit. Spoke with a few guys locally and it's possible the breather is clogged. I need to try and figure out how to get to that piece. Anyone have experience doing this?