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General E46 Forum
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Old 06-21-2015, 08:54 AM   #21
Solidjake
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If you don't change the cooling system which is already showing neglect and problems then don't drive it because it will eventually fail you and leave you on the side of the road. BMW's are not cars that you can just put gas and go because driving the car to the ground will result in more problems (overheated/cracked heads, etc). They need preventative maintenance such as the cooling system (everyone knows BMWs have weak systems), fuel pumps need to be changed over 100K miles because they will give starting issues and more.
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Old 06-21-2015, 08:56 AM   #22
chmac
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OK, thanks again @Solidjake.

I'll call some places tomorrow and get a quote to replace the radiator and the whole cooling system. Once I have some prices, I'll make a decision and post back how I get on. :-)

Really appreciate all the help folks.
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Old 06-21-2015, 09:07 AM   #23
Solidjake
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Cost for all of the parts is around $500 USD including the radiator. - radiator (behr), bmw coolant, water pump (Saleri, Geba, Graf), water pump pulley, thermostat (walher), expansion tank (oem), expansion tank cap (oem), coolant level sensor, lower radiator hose, lower radiator hose sensor, upper radiator hose
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Old 06-21-2015, 06:44 PM   #24
BMW-North
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Gotta agree with Jake. If you were planning on scrapping the car I'd say go ahead and use something like a a Barrs Stop Leak - but it will cause irepairrable damage to other aspects of your car (permanently slows & clogs flow of the heater core).

So the best route is replace the radiator and if you can afford to replace the other major cooling components Jake mentioned. At least you know what it is now that's leaking. Nissens or Behr make a good rad for this car.

BTW - if you were able to remove the fan - it's really not very compex to replace all the components Jake listed. No special tools needed for the manual tranny cooling system. There are plenty of detailed DIY's around here to guide you through it. Good luck.
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Old 06-25-2015, 06:23 AM   #25
chmac
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Thanks for all the help folks. I got the radiator replaced yesterday. Filled with fresh coolant. Total cost was about 190 and took most of the day, but it's done, and that's the main thing! :-)

Really appreciate all the feedback and input here, made the whole diagnosis and resolution process 10x easier at least.
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