The shop transmission flush machines I have seen connect into the transmission cooler lines and suck the fluid out while pumping clean fluid in, to somehow magically swap out the old tired fluid for fresh new fluid... somewhere in the mix, a new trans filter is installed and pan gasket, etc...
These machines are pretty expensive, even used, so the shop charge for this level of service is pretty spendy, from what I've seen. Might be cheaper to just do a pan drop and drain, new filter, fresh fluid.... then do another repeat in 5,000 miles.. until the trans fluid shows "fresh".... On Mon, Jul 29, 2019 at 10:14 AM Buggered Benzmail via Mercedes < mercedes@okiebenz.com> wrote: > I need to change the trans fluid in my truck. Has about 120kmi so quite > overdue. I don’t recall changing it but I might have at some point. > > I see it takes 5qt for a filter change but 11qt if the TC is drained. Of > course there is no direct way to drain the TC. So I’m wondering if the best > way to clean it out is to buy some cheap bulk fluid, dexron or whatever, > then run a coupla drains and refills through before I put in the new filter > then another dose of clean fluid. That would dilute the old stuff pretty > well but unless I used “better” fluid to do the process it would get > diluted quite a bit on just the last fill. > > What do shops do when they flush and refill? Some kind of machine that > somehow can flush out the TC? How does that work? Are there some kind of > fittings? > > --FT > Sent from iPhone > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
