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Old 03-23-2013, 10:23 PM   #1
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Cool How do you pressure test Radiator Cap?

This is for a 2004 325i automatic. I've recently purchased a stant 12270 pressure tester but can't seem to pressure test the expansion tank radiator cap. Can the cap be tested?


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Old 03-24-2013, 07:09 AM   #2
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You may not get an answer, as people usually just replace the $10 cap periodically.
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Old 04-27-2013, 11:29 PM   #3
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you put it in a pressure cooker and turn it on for 10 minutes and if it is a full moon and the sea is parted when the times up then you are trolled.

really, you would need to buy a pressure test kit with a coupling for the cap that fits your car. ebay has them but they are usually ****. blue point make a good one but natrually is as expensive as its weight in iridium.

alternatively, you could just replace it and if thats not the problem and if its not, then you have a spare one and it didnt cost as much as a pressre test kit you used once then put on ebay.

Last edited by AU328i; 04-27-2013 at 11:30 PM.
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