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Coolant Pressure test
08-11-2018, 06:32 PM
Post: #1
Coolant Pressure test
Hi all,

I am trying to locate a coolant leak on my 09 e60 530d. I have replaced the thermostat and the hose from the radiator to it as it was around this area where it appeared to be leaking from and was caked in dry white sediment. Needless to say after replacement the leak is still there. I have let the car idle and been underneath with a torch to see where its coming from but its still inconclusive. It appears to drip from the one bolt on the bottom of the thermostat - but I am not sure it us that. I have an idea that it may be being "splashed" there from somewhere else, possibly from behind the pulley next to it which I believe may be the pump.

I would like to conduct a pressure test on the system and was wondering if anyone could assist? I am in the Waterkloof/Pierre van Ryneveld area.


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