100% and what happened to me - dried coolant all over....no go b/c didn't leak down during test. Whatever....just went out of the 72K warranty and the LM stuff works. No reason for anything to get blocked up with this stuff.Nice to hear you’ve had no adverse effects. Especially with how easily vags like to block heater cores. Their is a TPI for the leaking thermostats and you basically have to show exactly what part of the set up is leaking with a vin tag in the photo. Makes it very hard to claim anything that’s not leaking when tested. Can be very annoying for a tech when you have a part that’s covered in white dried coolant and obviously has a issue.
I'll likely be having this stuff replaced during an upgrade in the next year and will be looking at the options.From what I have seen it is flush stuff that is an issue with heater cores.
But be careful with that water pump on the track. That is ticking bomb.
Check whether GRAF has all aluminum pump for GEN3.
I had my water pump replaced but it did seem to stop it for several months before it started again and I had it replaced.@TiGeo Curious if you have another update on the LM Stop Leak? I'm considering using the same product to address a radiator leak on my E90:
BMW radiator leak and recommended replacements?
2009 BMW E90 328i AT with 140k km I was replacing my radiator fan and noticed that my radiator appears to be leaking from both ends where the tubes join the header plates. Has anyone seen a radiator with the same failure? I'm curious if I can continue driving until I can change the radiator, or...bobistheoilguy.com