Cooling Problems!?!?!? - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 07-03-2009, 07:27 PM
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Question Cooling Problems!?!?!?

How you doing..i replaced the radiator, fan shroud, fan, and coolant tank on my 93 325i...but for some reason i still have a coolant leak...i have checked all the hoses..they are tight..so im stumped...Any ideas????
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#2 (permalink) Old 07-03-2009, 07:31 PM
OMFG another one!?
 
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Do you have a way to get it pressure tested?

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#3 (permalink) Old 07-03-2009, 08:03 PM
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No...Could that be the problem???
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#4 (permalink) Old 07-03-2009, 09:23 PM
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It could be a way to find the leak.

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#5 (permalink) Old 07-03-2009, 11:13 PM
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How would i go about doing that??
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#6 (permalink) Old 07-03-2009, 11:19 PM
OMFG another one!?
 
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You may need a garage to do it; they are equipped and know where to hunt the most likely leaks.

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#7 (permalink) Old 07-04-2009, 08:32 AM
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Put a fluorescent dye in the coolant system then you should be able to see the leak.

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#8 (permalink) Old 07-04-2009, 11:45 PM
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thanks alot guys..i fixed the leak but now i have a new problem..the car wont stop overheating..i replaced the thermostat today thinking that would fix it...No go..Any other ideas guys???????????????
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#9 (permalink) Old 07-05-2009, 12:02 AM
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Bad water pump?

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#10 (permalink) Old 07-05-2009, 04:12 AM
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Viscous coupling or you have air in the system, if you roll up a news paper and stick it in the fan and it stops its the viscous coupling as for bleed ing the system correctly always do this from cold, fill up with engine off and A/C on max heat but fan at lowest setting. fill and bleed you may have to do this several times, if this fails as Whitshark says possible waterpump.

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#11 (permalink) Old 07-06-2009, 09:43 AM
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I am thinking bad water pump too...the coolant tank was full so i thought thermostat but yeah...
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#12 (permalink) Old 07-06-2009, 10:30 AM
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how do i bleed the air out of the cooling system when i change the water pump??
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