|
yes, on a 2001 BMW 525i touring. very small head leak into number 3 cylinder. coolant leaking into cylinder, car ran great, just kept losing coolant.
A mechanic told me to pull the plug out on the that cylinder and run it with the stop leak. The idea is reduce compression on that cylinder, so it doesn't blow the stop leak out. the pressure in the coolant system pushes the product into the leak.
I used a product that has poly beads in it, so the idea is they plug the leak, melt and creat a perminent fix. I can't recall the brand, I did a quick google searh and can't find it. It was agray bootle and cost about 40 bucks.
anyway it worked. I flushed the system after wards to remove the unwanted beads.
On a car that was easy to remove the head like that truck, I would remove the head. From reading, it was a big project to remove the head on BMW.
|