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Help changing coolant on a 958CTT


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Looking for some help on this topic at 160k on the odometer and figured the lifetime fluid is done.

 I was only able to get about 1/2 gallon of old coolant from the radiator. I could not find a drain plug on the bottom as described in the 955/957 instructions. The lower radiator hose was very difficult to remove and disconnected it at just below the intake and pumped out the old coolant.
This is not 4 to 5 gallons and described in the 955/957 DIY.

 

I have done Airlift pressure bleed/fill on my 996 and seen the write up for the 955/957 or refilling won’t be an issue

 

Need some help understand how this cooling system works.

 

 

Edited by jayi836
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