Replace the flimsy plastic bleeder screw used in the coolant expansion tank or in one of the cooling system hoses with this high quality, durable, aluminum bleeder screw. The stock plastic screw can deform over time due to heat or even regular use. We have even seen the head of the screw snap off, leaving the threaded body stuck in the expansion tank. This aluminum screw will help to prevent sudden failure of the bleeder screw, which can result in immediate overheating of the car.

ECS Tuning's Aluminum Coolant Bleeder Screw replaces Genuine BMW Part Number 17111712788

CSF designed the coolers to be a true “Drop-in Fit” for easy installation fitting both left and right sides. Each cooler mounts in the factory location and uses the OEM quick connections. The High-Performance Auxiliary Radiators work in conjunction with the rest of the cooling system to reduce temperatures. They not only help keep temperatures in optimal ranges but also prolongs the heat soak threshold. There’s nothing worse than having your track session cut short because you need to do a cooldown lap.

Compared to the OEM G8X coolers, the CSF units are a significant upgrade. The TIG welded aluminum tanks are much larger than the OE plastic tanks offering superior strength and fluid volume. A larger 2-row 42mm core increases cooling efficiency and capacity. This high-efficiency core uses CSF’s Exclusive B-Tube Technology and the latest 5mm fin technology, maximizing airflow and heat dissipation. These 5mm fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow.

100% All-Aluminum construction ensures the best performance and durability. The mounting pins and brackets are much stronger and more durable than the OE plastic pod mounting system. In addition, the black finish provides extra protection and offers a stealthy look behind the grilles of your G8X.

The CSF auxiliary radiators also feature integrated bolt on rock guards to keep the coolers safe. You’ve no doubt heard horror stories about OEM coolers getting punctured and spilling fluids all over the road or track. Now you can feel more confident that your cooling system is safer from road debris.

Because each auxiliary radiator is used for a different system you can elect to replace one at a time. For those looking to further improve the Charge Air Cooling system replace the right side auxiliary radiator. Those looking to improve the engine cooling system should replace the left side.

Features:

Sold Individually – all applications require 2 auxiliary radiators

Multi-Fit – Fits Both Left & Right Side

2-Row – 42mm High-Performance Core Featuring CSF’s Exclusive B-tube Technology

Ultra Efficient 5mm Tall Fins with a Multi-Louvered Design for Maximum Surface Area Contact

Tank Volume and Core Size Increased

100% All-Aluminum TIG-Welded Construction

OEM Style “Quick Connect” Inlet/Outlet

True “Drop-in Fit” Requires No Modifications to Install

Includes Detachable Rock Guard

Individually Leak and Pressure Tested

High-Performance Upgrade Suitable for Professional Racing, Street Performance, or OEM Replacement

Satin Black Finish for OEM+ Look

2-Year Limited Warranty

CSF vs OE:

Feature                           CSF           OEM

Core Width                  42mm          34mm

Core Rows                   2-row          1-row

Fin Height                     5mm           5mm

Tank Material         All Aluminum     Plastic

Construction     100% TIG welded  Crimp on gasket

OEM Part Number: BMW 17118095285 (17 11 8 095 285)

Fitment:

2021+ BMW G80 M3 (incl. Competition & CS) – 6MT & ZF8 Auto

2021+ BMW G82/G83 M4 (incl. Competition, CS, & CSL) – 6MT & ZF8 Auto

2022+ BMW G81 M3 (incl. Competition) – 6MT & ZF8 Auto

2022+ BMW G87 M2 (incl. Competition) – 6MT & ZF8 Auto

ECS Tuning 304 Stainless Steel Hose Clamps

Revolutionize your car maintenance with ECS Tuning's premium 304 stainless steel hose clamps. Eliminate dealership delays and inflated prices! These German-style clamps utilize T-bolts for hassle-free diameter adjustment. With various band widths available, these durable clamps ensure reliability without the hefty cost. Experience dealership-quality products at affordable rates, exclusively at ECS Tuning.