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 Blue Concentrate Antifreeze Coolant For European Vehicles

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Description

🔵 Drive Cool, Stay Ahead: The European Antifreeze That Means Business

UNMATCHED LONGEVITY - Up to 150,000 miles or 5 years of reliable engine protection—drive worry-free.
VERSATILE CONCENTRATE - Perfect for flushing, filling, or topping off—customize your coolant needs effortlessly.
BITTERING AGENT SAFETY - Includes Denatonium Benzoate to deter accidental ingestion—safety meets performance.
TAILORED FOR EUROPEAN PRECISION - Specifically engineered for BMW, Jaguar, Volvo & more with advanced Si-HOAT tech.
ULTIMATE RUST CORROSION DEFENSE - Advanced formula shields every cooling system component from costly damage.

PEAK OET Blue Concentrate Antifreeze/Coolant is a premium Si-HOAT formula designed for European vehicles like BMW, Jaguar, and Volvo. Offering up to 150,000 miles or 5 years of protection, it prevents rust and corrosion across all cooling system parts. This concentrated antifreeze is versatile for flushing, filling, or topping off, and includes a bittering agent for added safety.

Specifications

ASIN	B08PMZH5ZC
Best Sellers Rank	#9,966 in Automotive ( See Top 100 in Automotive ) #59 in Antifreezes & Coolants
Brand	PEAK
Customer Reviews	4.7 4.7 out of 5 stars (470)
Date First Available	December 3, 2020
Item Weight	9.77 pounds
Manufacturer	PEAK
Manufacturer Part Number	PEB0B3-01
Package Dimensions	11.77 x 7.52 x 3.94 inches

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