Radflush or not

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livers

Well-Known Member
Posts
3,906
Location
suffolk A12/A14 junction
New (2me) 300tdi has lovely brown coolant. Am going to run clean water a couple of times over next few days, but would radflush just be asking for trouble or not worth it? No heating cooling problems at the moment.
 
I've never used it and just flush with plain water when replacing antifreeze, so it look likes your disco have never use antifreeze or at least not using the correct quantity to have the corrosion u have.u

So if this stuff is for removing corrosion then use it, why not? But I would just drain refill with water run the engine, drain again etc etc two or three times and see what comes out.
 
New (2me) 300tdi has lovely brown coolant. Am going to run clean water a couple of times over next few days, but would radflush just be asking for trouble or not worth it? No heating cooling problems at the moment.
I would pull off both hoses, wrap a garden hose in tape, and stick it in the rad outlet. Reverse flush until the water runs clear, may take several hours if rad is very silted. Then refill with antifreeze mix as well. Block may benefit from flushing too.
 
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