Thread: Now I am worried... Diff. oil change?

you probably just need to undo the filler plug (top one) and check if there is any water, white or milky residue in there. If not, don't panic!

If you have standard breaters, I would be tempted to change diff oils.. Its pretty easy and cheap to do.

If you take the fill plug out and stuff comes out, change it!

Pete

The problem is hot axles hitting cold water. The instant temperature change causes a partial vaccum, pulling water past the seals. Always the problem with boat trailer bearings, much better to wait half an hr before hitting the ramp.

Short term: Check & see as others have said. Long term: fit extended breathers, its not hard to do.

Regards
Max P

You should be Ok with a TDi they're pretty simple engine and resilient to wading.
As well as what's already been mentioned, make sure there's no mud caked around the front pulley / fan area of the engine.
If you don't have a snorkel maybe take the airfilter cover off and see if there's any evidence of water getting in there.
Oh and check the carpets and underlay - even if it doesn't seem like it got into the cab, the spongy underlay can be wet without it being obvious. - water sitting in there can get smelly and rust your floor pans after a while.