Engine Coolant For Bmw 4 Series
By the Editorial Staff
March 24, 2026
About BMW Antifreeze & Coolant If your car has run dependably for the last five years, it's at least partially due to a healthy cooling system with clean, properly mixed antifreeze. But that won't be the case forever, and eventually, your BMW's antifreeze will need to be changed for maintenance or refilled after a repair. Running the engine low on coolant or with old antifreeze can cause.
Find the coolant type for BMW 4 Series's built from 2013 through to 2024 for free. View the coolant type, capacity and the recommended change period. Discover the essential role of coolant in your BMW's performance and longevity.
This article explores the types of coolant, including OEM BMW Antifreeze/Coolant and alternatives like Zerex G-48. Learn about specifications, proper mixing, and maintenance tips, including when to check and change coolant levels. Ensure your engine runs smoothly by using the right coolant for optimal protection.
What Coolant Is Best for a BMW 4 Series? The correct coolant for a BMW 4 Series is a BMW-approved, phosphate- and nitrite-free HOAT (Hybrid Organic Acid Technology) coolant, typically the blue BMW OEM coolant concentrate mixed 50:50 with distilled water; using the wrong coolant can damage the engine, cooling system, and void warranty coverage. For example, BMWs with aluminum engines require OAT coolant, while those with steel engines can use conventional coolant. Driving Conditions: If you drive your BMW in extreme temperatures, high-performance driving, or in areas with high levels of pollution, you may need a coolant that provides extended protection.
Recommended antifreeze for radiators of BMW 4. Selecting the right engine coolant is vital for efficient operation and longevity of your BMW. Using the manufacturer approved formulations ensures your cooling system has optimal heat transfer and corrosion protection.
But with varying types from BMW dealerships and third-party retailers, choosing the best product for your model can get confusing. The quality of your BMW coolant is vital not only for keeping engine temperatures in check but also for lubricating the water pump, protecting against corrosion and build-up, anti-freeze in winter months, and assist in cooling for engine and transmission oil coolers on some models. BMWs have specific coolant requirements (nitrite and phosphate free) to prevent build.
Replacing the coolant is a relatively straightforward task that can be accomplished at home with the right tools and knowledge. This guide provides a comprehensive, step-by-step process for changing the engine coolant on a BMW 4 Series, helping owners save money and gain a deeper understanding of their vehicle. The BMW cooling system relies on high-quality antifreeze and properly maintained reservoirs and caps to prevent overheating and engine damage.
This guide highlights five reliable options that fit a range of BMW models, from classic 3-series to newer X models. Each entry includes compatibility notes, key features, and how it supports optimal.