Quote:
Originally Posted by Edrift
Water pump
Thermostat
Coolant reservoir
Plastic tube that feeds the coolant reservoir
Oil filter housing gasket
Oil cooler housing gasket
Genuine BMW coolant
Start with the gaskets as they are the cheapest but also known to fail the most
Then move on to the water pump and thermostat
Then the rest
If the car has non genuine fluids it take a lot of water to flush them old fluid out.
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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.