i need help. how do you drain , flush and refill the cooling system? the stupid dealer put the wrong antifreeze in it. cricket.

Take a look at viewtopic.php?f=5&t=56486&hilit=citric . The owner's manuals and FSMs are inconsistent on the cooling system fluid capacity and I don't know that anyone has posted simple a DYI flush that fully cleans the system, I have my own personal opinion on how to do it but since I've not put that into practice I'm keeping that opinion to myself. The underlying problem is that a simple cooling fluid drain leaves a large but uncertain amount of fluid in the system.

What I can tell you for certain is the not simple flush that I had stoutdog use. The short version is to drain the system and refill with clean water; do a brief drive; repeat about 7 or 8 times which pretty much results in removal of all the old or incorrect antifreeze at least by color of the fluid. Once that's done do a final drain and refill with 6qts of full strength Xerex G-05 or equivalent and top off with plain water to reach a 50/50 water/antifreeze mix.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

thank you,papaindigo, for sending me to this page. i now feel like i can do the job myself.much appreciation. cricket

thank you again, papaindigo. I cut the prescribed length of hex key and got under with tools and drain pan. I could not get the key in the drain valve.too much stuff in the way. I used the vacuum tank I use to change oil in my tdi. this may have been a blessing. it is hard for an 81 year old to get up and down. it took 10 refills to get it clear with several warm ups between.

I am not familiar with zerex so i did not mention it. cummins I am familiar with from my days with them. this is where I learned about cavitation and erosion. I had read through 65 pages of "love that torque" an had not seen anything on it so I thought I would bring it up.
thank you again, cricket.

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