Bmw Coolant Uv Dye

Tired of chasing mystery coolant leaks in your BMW? If your coolant reservoir keeps running dry but you can't find the source, this simple UV dye trick could save you hours of frustration. In this step-by-step guide, we show you how to use AC Pro UV Radiator & Cooling System Dye to instantly detect hidden leaks. In this video, I demonstrate a game.

As an example - my "BMW blue" coolant became green after using UV dye. If next mechanic working on car relies on coolant color to figure out compatible coolant to refill he may incorrectly fill in the wrong one (which may or may not be a big problem). Shop for AutoPro Antifreeze and Coolant Leak Detector UV Dye 1oz with confidence at AutoZone.com.

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Parts are just part of what we do. Get yours online today and pick up in store. Browse our top 10 coolant leak detectors for BMW in 2026 and discover the perfect solution to prevent costly repairs-your engine will thank you! Get some ultraviolet dye (UV dye) that is safe for coolant systems and put it in your coolant system Then use a UV light and UV glasses to look for leaks it works better when it is slightly dark outside.

Also, you might run the car to operating temp, then let it sit overnight. - buy UV coolant dye and UV glasses and flashlight. Add 1/2 bottle to expansion tank, run for 2-3 days and then, at night look with glasses and flashlight for UV leaks.

AutoPro Antifreeze and Coolant Leak Detector UV Dye 1oz

« Previous Thread Next Thread UV Dye to detect coolant leaks. Clean everything up, run the engine until the coolant is hot & the system is pressurized, shut the car off and search for the glowing dye where the leak is. It helps to have a pair of UV glasses with yellow lenses.

The stuff works great in A/C systems, engine oil, power steering, diffs, trannies, etc. Good luck. Add the UV dye to your BMW's coolant reservoir according to the product instructions.

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Run the engine for a while, allowing the dye to circulate through the cooling system.