Antifreeze PEAK or OEM BMW

Ive been using peak for a while across a 2016 jetta when i owned it and now in my 2021 tiguan. Works fine

Had good luck with their older Asian green, Toyota pink, and Newer Asian Blue in my son's Subaru.

I have some Peak "original equipment technology" for European vehicles, "violet." It is pre-diluted. It seemed to immediately blend right in, if that means anything.

Find the peak brand equivalent. That's what I use for 2021 RH Model. Make sure specifications match. Properly flush your coolant system before implementing and properly bleed and burp the air out before taking it for a ride. Do not leave air in coolant passages. I've had no issues with different brand coolant and oil.

I bought a 19 SEL brand new and have been using the Peak exclusively. I’ve had no issues.

I used the PEAK pink stuff for Asian vehicles in my 2004 and 2006. Good stuff.

Using an AMAM coolant (typically yellow - “All Makes, All Models”) is the safest thing you can do. It has none of the nitrites, borates, silicates, etc. that can cause issues in various systems. It’s really one coolant that works everywhere. Peak 10X is a solid choice in that realm.

Head to an autozone and get PEAK blue coolant for european vehicles.

They called her back again to say after they started working on it, it's not the water pump, but a coolant leak at the cylinder head, at the head gasket, so what was originally a water pump, is now a head gasket job, 3-4 days.

I paid for a coolant flush and the mechanic put back in peak 50/50. The orange kind not the gold. At least its not mixing with the HOAT but im pissed