Is this good for my BMW 2019 540i?

Thank you for your interest in PEAK OET Extended Life Blue. Yes, this is the correct product for you 2019 BWM 540i.

Can you mix this with the bmw brand coolant? thats what is in my coolant system currently. this product seems to be basically the same thing as that.

Yes, you can use PEAK OET Extended Life Blue for European Vehicles but I would recommend performing a complete flush and fill first.

i bought this for my 2009 ml350 4matic thinking it was correct color. mine currently is yellow and the bottle is blue coolant, can i mix these?

Do not mix coolants of different color. This can cause corrosion and damage the engine. It sounds as if your coolant was incorrectly filled somewhere with orange which is used in GM vehicles. The German cars all call for the blue coolant. This would include your Mercedes. You will need to drain your coolant or have it flushed in order to add the proper blue coolant.

Can you add this in with other coolant or do you need to flush the system first? I've been using the bmw branded coolant.

If you want you can no need to flush it. since you’ve been using BMW coolant, it should be the same blue color as well.

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🔵 Keep your European ride cool, protected, and ahead of the pack!

LONG HAUL RELIABILITY - Guaranteed protection up to 150,000 miles or 5 years—drive worry-free.
BITTERING AGENT SAFETY - Includes Denatonium Benzoate to prevent accidental ingestion—smart and safe.
READY TO USE CONVENIENCE - 50/50 prediluted formula means no mixing—just top off and go.
ULTIMATE COOLING DEFENSE - Advanced rust & corrosion inhibitors shield your engine’s core.
TAILORED FOR EUROPEAN PRECISION - Specifically engineered for Audi, BMW, Mercedes, Tesla & more.

PEAKOET Extended Life Blue 50/50 Prediluted Antifreeze/Coolant is a premium Si-HOAT formula designed for European vehicles, offering up to 150,000 miles or 5 years of protection against rust and corrosion. Compatible with top brands like Audi, BMW, and Tesla, it comes ready-to-use for quick, hassle-free maintenance.

Reviews

A**J

Perfect for BMW

Exactly what i needed for my car, at a much better price than original BMW fluid. Works as it should, correct color. Supposed to las long, but BMW cooling systems have so many cheap plastic parts that the fluid usually ends up leaking out well before it is time to change it.

10.08.2025

D**S

Quality

Good products

18.09.2025

B**L

Great for BMW

I bought this for my bmw for top up. Great value for top up.

21.06.2025

A**R

Works well

14.09.2025

J**T

Its blue!

It is coolant, I live in the tropics, can't say much about its antifreeze ability. Been using it for a couple of years now in a BMW with no issues.

26.08.2025

R**R

Big Boy

It works

5.02.2025

J**O

Good quality

Good

4.09.2025

G**I

Efficient and good quality

3.08.2025

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€ 105.96

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Manufacturer	PEAK
Brand	PEAK
Model	PEAK OET Extended Life Blue 50/50 Prediluted Antifreeze/Coolant for European Vehicles, 1 Gal.
Item Weight	9.15 pounds
Package Dimensions	11.73 x 7.6 x 3.74 inches
Item model number	PEBB53
Manufacturer Part Number	PEBB53-01

PEAK OET Extended Life Blue 50/50 Prediluted Antifreeze/Coolant for European Vehicles, 1 Gal.

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