How to Add Coolant to a 2015 Mercedes C300 - Fix Low Coolant Warning

How to Add Coolant to a 2015 Mercedes C300 - Fix Low Coolant Warning Product Links: SAVE BIG HERE: 50% off Amazon Prime here (ages 18-24): https://amzn.to/3Xt3qyK 2015 Mercedes C300 Low Coolant Warning? Here's How to Refill It Correctly Does your Mercedes C300 display a Low Coolant warning? In this video, I'll show you how to add coolant to a 2015 Mercedes C300 the correct way and explain how to make the warning message disappear. I'll walk you through the entire process, including how to check the coolant level, which coolant to use, how to mix concentrated coolant with distilled water, and where to fill the coolant reservoir. This DIY repair only takes a few minutes and can help keep your cooling system operating properly. 🔧 What You'll Learn ✔ How to check the coolant level on a 2015 Mercedes C300 ✔ Where the coolant reservoir is located ✔ Which coolant is recommended for the W205 Mercedes C300 ✔ How to mix concentrated coolant with distilled water (50/50) ✔ How much coolant to add ✔ How to make the low coolant warning go away 🧪 Coolant Used For this vehicle, I used: Mercedes-Benz Coolant Part Number: BQ1030005 Mixed with distilled water at a 50/50 ratio Always verify your owner's manual or consult your Mercedes-Benz dealer before adding coolant. Mercedes has used several coolant formulations over the years, so it's important to use the correct specification for your vehicle. Similar Mercedes-Benz Models This coolant is commonly used in many Mercedes-Benz vehicles from the same generation, including: Mercedes-Benz C300 (W205) – 2015–2021 Mercedes-Benz C43 AMG (W205) Mercedes-Benz C63 AMG (W205) Mercedes-Benz GLC300 (X253) – 2016–2022 Mercedes-Benz GLC43 AMG Mercedes-Benz E300 (W213) – early model years Mercedes-Benz E400 / E450 (varies by model year) Mercedes-Benz CLS450 (similar-generation models) Important: Always confirm the correct coolant specification for your exact year, engine, and model before adding coolant. ⚠️ Important Tips Always check the coolant level when the engine is completely cold. Never remove the coolant reservoir cap while the engine is hot. Mix concentrated coolant with equal parts distilled water unless you're using pre-mixed coolant. Make sure the new coolant matches the color and specification already in your cooling system. Once the coolant level has been restored, the Low Coolant warning will automatically clear. If this video helped you, please give it a thumbs up 👍 and subscribe for more Mercedes maintenance tips, DIY automotive repairs, and weekly how-to videos. Disclaimer: As an Amazon Associate I earn from qualifying purchases. ****Equipment I Use For My Videos**** Canon EOS M6: https://amzn.to/2pwQ0Vq Canon EF-M 22mm f/2 Lens: https://amzn.to/31mLfLq Tokina 11-16mm Wide Angle Lens: https://amzn.to/33TFaYH Fotodiox EF to EOS M Lens Adapter: https://amzn.to/31u3AGq Comica CVM-WM300A Wireless Microphones: https://amzn.to/31tbiAD Aputure Amaran AL528W LED Light: https://amzn.to/2VRuwyK Kamerar SD-1 Camera Slider: https://amzn.to/2VUB5Ax AVermedia HDMI Game Capture Module: https://amzn.to/31phsSp