2005 xc70 rear differential leaking

[Xheart]

old thread but for reference...my 2005 with 94k miles on it started leaking this week. Sounds like a headache. Joy.

Was the fluid ever replaced? If not, do it first before taking next steps.

[mapper]

I refilled it this weekend, it took a good amount, probably about 350mL. Put a new crush washer on the fill hole. I currently have the plastic carrier piece out and it appears to be leaking from the half shaft seal. Just looking for instructions now on how to replace that seal.

[DannyStringhamMarquis]

My '05 is leaking from the differential according to my last mechanic (who I wasn't very fond of)
I've yet to investigate myself further on account of the exhaust being in the way. Is there a way to get to the differential without removing/lowering the exhaust?

[billr99]

My '05 is leaking from the differential according to my last mechanic (who I wasn't very fond of)
I've yet to investigate myself further on account of the exhaust being in the way. Is there a way to get to the differential without removing/lowering the exhaust?

Keep in mind that if the diff is overfilled; that is, filled to the bottom of the filler hole AND without 75CC removed, the diff will puke out the extra fluid via the vent. Most mechanics don't know you have to remove that wee bit of fluid after a total fill to allow for expansion of the fluid. Its documented in VIDA but most of those folks don't read the procedures.

Cheers,

Bill

[AKAMick]

" Is there a way to get to the differential without removing/lowering the exhaust?" don't fret over the exhaust, very easy to remove and refit as a complete unit, just a new flange gasket.

[Pennhaven]

" Is there a way to get to the differential without removing/lowering the exhaust?" don't fret over the exhaust, very easy to remove and refit as a complete unit, just a new flange gasket.

I changed the fluid in mine without removing (or even simply moving) anything. I don't remember encountering any issues, but I did follow advice posted here by other members; i.e., used a Mighty Vac with very narrow diameter flexible tubing.

That said, removing and resealing, if actually necessary, would require better access.