Did my A16 maint. today (well, did the oil last weekend, but did the VTM4 today).
Started with this thread (thanks OP!) as a guided, but decided with the easy clearance that my inline pump would be easy to use for this and it was. I have a few of these (Harbor Freight, $3.99 on sale) and they work great for pumping of to medium visc fluids.
Glad I had a long breaker bar. Those fill and drain bolts were herc'd on there (not as bad as the damn tranmission fill bolt though!!)
Any, thought I'd add my experience to the thread.
Getting Ready (note the print out of the OPs post!):
Almost drained...thick stuff (even after driving a bit):
Mmmm...grapejuice (well, if grapejuice smelled like as...). There's my IS waving in the background :
I always like to measure the first fluid drain on each maint item to see how much comes out (and sometime, like the first oil change I did on the Ridge, you may find factory overfills...). I expected around 2.8 QTs based on the manual. I got about 3.1QTs that drained. Curious, I think I had a tad overfill from the factory as full capacity is 3.01QTs according to the manual. A drain for change should be about 2.8QTs, according to the manual.
Setting up the inline pump. I had this one that I had not yet used. Just cut the hoses to the lengths I wanted and it was a snap:
Much easier getting to the diff than when I did my IS350s rear diff change
, given the better clearances under the ridgeline. I was expecting that little shoot-through access hole to be more of a pain, but it really posed no difficulties at all. Took about 20 minutes, mostly waiting for the fluid to drain.
Should have taken a pic of the magnetic drain bolt. Compared to the amount of particles on the mag-bolt when I did my IS diff fluid change, there was VERY, VERY little particles at all on the mag-bolt for the ridge. Just a bit of haze came off when I cleaned it.