I’ve heard/seen this approach and it makes sense. However, you would need to be sure to have the correct line disconnected and have a helper to start/stop the engine, asa LOT fluid moves through those lines.
The drain/fill approach works as well, although it’s a bit more time and labor intensive. By the time you’ve done it three times, the volume of old fluid is so low to be insignificant. -D > On Jul 30, 2019, at 10:39 AM, Allan Streib via Mercedes > <mercedes@okiebenz.com> wrote: > > Mitch Haley via Mercedes <mercedes@okiebenz.com> writes: > >> I got this method from a Ford factory manual in the 1990s. >> Drain and change filter, if applicable (my Cruze doesn't have a readily >> replaceable filter). >> Fill or slightly overfill. >> Unhook cooler line and connect to a clear vinyl hose. >> Start and idle the car. >> When you've pumped out almost as much as you put in, stop and put more in. >> When the fluid in the clear hose gets suddenly cleaner, stop and adjust >> fluid level as required. > > Was going to suggest similar. Depending on the car you might need to > shift through R-N-D when idling to get the fluid circulating. > > When I changed fluid in my Volvo this spring, I did the drain/fill x 3 > method, driving a bit between drains to fully circulate the fluid. That > took a while, but by the third draining the fluid was substantially > cleaner. > > Honda recommends the repeated drain/fill approach also. > > You don't want to use "cheap" fluid for any of the fills in that method, > since some portion of it will remain. Use the manufacturer recommended > fluid. It seems somewhat wasteful but has the advantage of not messing > with cooler lines, where there always the chance of causing damage, or > introducing dirt into the system. That said, I will probably try it next > time since it should use a lot less fluid and save some time. > > Allan > > _______________________________________ > 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
