Quote:
Originally Posted by Olgeezer1
I would agree with all the above +. At your mileage I'd add a radiator, stock units are not that expensive.If it's a "forever" car you could consider a CSF Aluminum rad.(CSF7001). Very close look at all your hoses. BMW O.E. hoses are very good but that's a lot of miles and you're already in there. There's also an Aluminum Coolant Hose Flange by Rein (CRP-CHC0609) to replace the O.E. plastic one that often breaks (about $17.50 from FCP Euro). Also, as pointed out above, only BMW O.E. coolant mixed 50/50 with distilled water.
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I did the CSF aluminum high performance radiator after the original cracked and started leaking. Also did the aluminum coolant hose flange.
The shop that installed the CSF radiator didnt manage the lines around it though so it ended up rubbing a trans oil line and damaging that... which had to be replaced and arranged so it wouldn't rub again.