Hi everyone,

I'm getting ready to do some R&R on my cooling system, including new hoses, t-stat, coolant, and possibly radiator as it's original with about 200k. I just did the cap recently, so that'll stay, but I may change the expansion tank for good measure.

In any case, I remember last time I did the coolant flush I had a hell of a time getting the trapped air out of the system. My diesel Benzes have always been tough to remove trapped air from for whatever reason, but I never worried that much on the all-iron 617; however on my 606 I don't want any temporary hot spots due to air if at all possible.

Aside from running the car up to temp and removing the cap to bleed air, is there any other trick to purging it on the 606? Is the Airlift vacuum tool worth the price?

Is there a better way I'm not thinking of when it comes to the 606?

Thanks

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1995 E300 Diesel
~300k