Well, just put in a new clutch fan which is working now because I tried using the newspaper trick and it batted it away. but when im at idle im still overheating unless i 2k RPM the car.
Thermostat worth checking? Kinda lost, no idea what else it could be.
Thermostat. Inefficient water pump. Do you know the last time these were replaced?
Drain the coolant from the block and rad and do the thermostat and water pump, at a minimum, with a new OEM plastic thermostat housing. If you haven't done it yet, at least one of them probably needs replacing. I'd suggest springing for the Stewart pump if you're going to be replacing it, or at least an OEM metal impeller pump.
You should also replace as many coolant hoses and hose clamps as you can easily get at since they're not expensive and it saves you from having to do another coolant drain to address a leak in the future. Also take a look at your radiator (if it's OEM) for any leaks or cracking. The plastic necks like to crack after a long time. The expansion tank is also worth inspecting as it's easy to replace while doing all this other stuff.
1999 M3/2/5 - Titanium Silver - Track/Weekend Toy
^+1
Use a Stainless Steel stamped/welded sheet metal impeller pump IF you go metal, as that is the impeller type BMW went to when they began having plastic impeller failures.
The SS pumps were replaced with a composite impeller pump.
I have heard that Saleri is the OE pump.
https://www.dvatp.com/bmw/water_pump
https://www.ecstuning.com/BMW-E36-32...ng/Water_Pump/
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Any of the water pumps you can buy on the big parts sites will be fine. They stopped selling the plastic ones that can break apart 15+ years ago...
Having gone through numerous water pumps, I would recommend the stewart just because it doesn't cost that much more money, should last longer, and provides more flow.
LIMITED WARRANTY/DISCLAIMER
Stewart guarantees that its products are free from defects in faulty workmanship and defective materials only if it is determined to Stewart's sole satisfaction that the products are, and have been subjected to, ordinary use and service and have been properly installed by the purchaser (see tag attached to product). If any product fails to conform to these warranties Stewart will, at its sole option and as its sole and exclusive liability hereunder, for a period of one year from the actual date of purchase, repair or replace the product
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Yeah, aside from this case I've never heard of any issues with the Stewart pump, and it's worth mentioning that in this example it did run for over 100K miles so I don't think you can call it defective (also probably why the warranty claim failed). Obviously I'd expect this pump to last well over 100K miles more often than not though. That said, I bet if someone contacted Stewart with a failed pump which had only like 20K miles and a few years on it they might actually replace it regardless of what the fine print says. That's clearly a defect, whereas the 100K mile failure is more ambiguous.
1999 M3/2/5 - Titanium Silver - Track/Weekend Toy
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