Our Solution

HEAT RESISTANT COOLANT CATCH PAN If the coolant tank develops a leak, the our catchpan safely redirects escaping coolant away from the ignition system and surrounding engine components. Excess coolant is channelled downward toward the vehicle’s frame rail instead of dripping onto coils, injectors, or wiring — eliminating risk of costly damage.

The Problem

ISSUE WITH THE CURRENT DESIGN The coolant tanks in F90 M5 / F9X M8 platforms often leak due to a design flaw. Two main reasons contribute to this are 1. Heat Exposure - The plastic expansion tank is mounted directly above the catalytic converters, one of the hottest areas in the engine bay. 2. Material Fatigue - Continuous exposure to high temperatures and coolant chemicals gradually makes the plastic brittle, increasing the likelihood of cracks and seepage between the joins over time.

BMW COOLANT LEAK

CATCH SHIELD

SAFE GUARD YOUR BMW M5 FROM THE MOST COMMON PROBLEM The Problem: The factory plastic coolant expansion tank on the BMW F90 M5 and F9X M8 has a well-documented and critical design flaw: it is highly prone to cracking along the seams. When this inevitable failure happens, escaping coolant leaks directly onto your vital engine components, including the fuel injectors, coil packs, and engine wiring harness. This causes severe misfires and incredibly costly electrical damage. In extreme cases, the leaking coolant can seep into the cylinders, leading to engine hydrolock and catastrophic engine failure. While BMW has attempted to resolve this issue with revised replacement tanks (Part Numbers: 17138090271 and 17137889450), these updated parts are still made from plastic and ultimately suffer from the exact same seam failures Our Solution: We have engineered a fail-safe solution to protect your S63 engine. Our Heat- Resistant Coolant Catch Shield is designed to fit seamlessly around your existing OEM coolant tank. If your factory expansion tank develops a leak, our shield immediately acts as a barrier, safely redirecting the escaping coolant away from your ignition system, cylinders, and coil packs. By diverting the fluid down and away from the engine block, we completely eliminate the risk of thousands of pounds in electrical and mechanical damage. Why Choose our Coolant Catch Shield: • Superior Materials: Crafted from heavy- duty, heat-resistant reinforced Nylon. It features a significantly higher temperature rating than the standard ABS plastic used in the factory BMW tanks • Thermal Protection: Our shield doubles as a thermal barrier, protecting your original coolant tank from extreme engine bay heat and actively extending its lifespan. • 5-Minute Installation: Quick, straightforward, and DIY-friendly. You can protect your engine in minutes with complete peace of mind. • 100% Warranty Safe: The shield requires no permanent modifications. You retain a completely stock engine bay appearance without invalidating your BMW manufacturer warranty.

BUY NOW

“Ive had 2 Coolant tanks replaced over 4 years, this now addresses what is a inherent design flaw in the stock coolant header tank” - John James

EASY INSTALLATION