BMW E92 Mickey Mouse Coolant Flange – "Temp" Replacement - 11537545890
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Replacement for the factory "Mickey Mouse" coolant flange found on the BMW E92 (N51/N52/N54/N55 engines
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Automotive
- Licencja
- Creative Commons — Public Domain
This is a reinforced replacement for the factory "Mickey Mouse" coolant flange found on the BMW E92 (N51/N52/N54/N55 engines). The original plastic part is prone to crumbling, leading to rapid coolant loss. This model is designed for high-performance engineering filaments that can withstand the intense heat and pressure cycles of the BMW cooling system.
Recommended Materials (Failure is not an option)
PPS (Polyphenylene Sulfide): The top choice for chemical and heat resistance, maintaining integrity up to 200°C (392°F).
PAHT-CF (High-Temp Carbon Fiber Nylon): Excellent for engine bays; it offers high heat deflection and stiffness while resisting automotive fluids.
PEEK: Industrial-grade for those with specialized printers; provides unmatched durability but requires 400°C+ nozzle temperatures.
ASA: Use as the absolute minimum baseline. It is UV and heat resistant, though it may be near its limit for direct coolant contact.
Critical Print Settings
Orientation: Print the flange horizontally. This ensures the hose barb doesn't snap at the layer lines when installing the hose or under system pressure.
Wall Count: Use all walls (100% concentric infill) to ensure the part is completely water-tight and can handle 15-20 PSI of pressure.
Nozzle: Use a hardened steel nozzle for CF-reinforced filaments like PAHT-CF to prevent abrasive wear.
Installation Notes
O-Ring: Reuse or replace the factory O-ring. Lubricate it with a small amount of coolant before seating the flange.
Bleeding: After installation, follow the official BMW coolant bleeding procedure to remove air pockets from the system.
Disclaimer & Real-World Testing
Please Read: This part was designed as a temporary solution/prototype. I have only tested this printed flange (printed in ASA) for a few days on short trips. 20 MIN MAX
It has not been tested for long-distance driving or high-heat cycles over an extended period.
I have since replaced my printed part with a permanent aluminum flange. If you choose to use this 3D-printed version, do so at your own risk, monitor it daily for leaks, and consider it a temporary fix rather than a permanent replacement.