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.

Peak Oet Extended Life Blue Concentrate Antifreeze Coolant For European

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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1164.77 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔵 Keep your European ride cool, clean, and corrosion-free — because your engine deserves the best!

SAFETY FIRST - Includes Denatonium Benzoate bittering agent to prevent accidental ingestion, protecting your household.
CONCENTRATED POWER - One gallon of premium concentrate ideal for flushing, filling, or topping off your cooling system with ease.
SEAMLESS COMPATIBILITY - Fully compatible with other extended life antifreeze/coolants, ensuring hassle-free maintenance.
ULTIMATE ENGINE DEFENSE - Advanced Si-HOAT formula shields your cooling system from rust and corrosion up to 150,000 miles or 5 years.
TAILORED FOR EUROPEAN PRECISION - Specifically engineered for BMW, Jaguar, Volvo, and other European vehicles requiring blue silicate-enhanced coolant.

PEAK OET Extended Life Blue Concentrate Antifreeze/Coolant is a premium, silicate-enhanced hybrid organic acid technology (Si-HOAT) formula designed specifically for European vehicles. Offering up to 150,000 miles or 5 years of protection against rust and corrosion, this 1-gallon concentrate is compatible with other blue Si-HOAT coolants and ideal for flushing, filling, or topping off your cooling system. Trusted by top European brands, it ensures long-lasting engine performance and safety with a bittering agent to prevent accidental ingestion.

Specifications

ASIN	B08PMZH5ZC
Brand	PEAK
Customer Reviews	4.8 4.8 out of 5 stars (2,445)
Date First Available	30 May 2025
Item Weight	4.44 Kilograms
Manufacturer	PEAK
Manufacturer Part Number	PEB0B3-01
Manufacturer reference	PEB0B3-01
Package Dimensions	29.9 x 19.1 x 10.01 cm; 4.44 kg

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