How To | Pressure Test Your Coolant System | BMW 535i F10

Here's a quick video showing how to pressure test your coolant system. In this instance, I find the leak is coming from the hose connecting the thermostat to the radiator.
I wanted to conduct this test because I was slowly losing coolant while driving. As I mentioned in my compression test video, I was an idiot and tried to drive my 535i with a failing water pump. For the record, DON'T DO THAT!!! If you have or suspect any issues with your BMW's cooling system, stop driving and resolve the issue immediately.
This is one test of many to determine if your car's head gasket is blown, i.e., if you're losing coolant but there's no leak in the system. That would indicate the coolant is passing through the head gasket and into the cylinder(s). Lucky me, that wasn't the case.
Here's a link to the kit I bought on Amazon - it worked well enough.
www.amazon.com...

[@Stephe-xs8tj]

Where did you get the kit from?

[@SingleMaltMotors]

Amazon - here's the kit I bought: www.amazon.com/gp/product/B0158CAGS0/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

[@jimmyjimjim3054]

Of course its going to leak... It is a BMW.

[@SingleMaltMotors]

Old bimmers... if they don't break your wallet, they'll surely break your heart

[@StiffButtFudge]

Coastal VA here , thanks for this, trying to detect a leak on my 330i today, do you need to bleed the system following a pressure test?

[@SingleMaltMotors]

Hi friend, thanks for watching. Only if you've lost a significant amount of coolant. If you did a quick test and no major leaks, you should be good to go. But if you found a major leak and added coolant, would be good practice to bleed the system. Hope that helps

[@ricardasr32]

Hi do you need to run heater blower on full heat on speed 1 during testing?