BMW M5 & M8 A/C Evaporator Core – OEM Part No. 64119361707 64119378108 – Restores Ice-Cold A/C Performance & Fixes Refrigerant Leaks | Fits BMW F90 M5 & F91/F92/F93 M8

Restore ice-cold A/C performance and eliminate refrigerant leaks at the source with this OEM-style A/C Evaporator Core, engineered to meet factory fitment and cooling efficiency standards.

The evaporator core is the heart of your BMW’s air conditioning system. Located inside the HVAC box behind the dash, it’s responsible for transferring heat out of the cabin air to deliver consistent, cold airflow. Over time, evaporators can fail due to internal corrosion, seal fatigue, or micro-leaks, leading to common issues such as weak A/C, intermittent cooling, oily residue from refrigerant dye, or repeated low-refrigerant faults.

This replacement evaporator core is built for long-term reliability and proper refrigerant flow characteristics, helping your system maintain stable pressures and cooling output—especially under high heat and heavy load conditions.

Common Symptoms of a Failing Evaporator

• A/C gradually stops blowing cold or becomes inconsistent
• Repeated refrigerant loss / frequent recharges
• Musty odor from the vents (HVAC contamination)
• Low-pressure A/C faults or pressure-related shutdowns
• Evidence of dye/oily film from a confirmed leak test

Key Features

• Direct OEM-style replacement evaporator core (part-number specific) 
• Restores factory A/C cooling performance and cabin comfort
• Correct fitment and sealing surfaces to prevent repeat leaks
• Built for long service life in high-demand BMW HVAC systems
• Designed for professional, factory-correct repair standards

Installation Notes (Important)

• Evaporator replacement typically requires dash/HVAC box access (labor-intensive)
• Always replace O-rings/seals and follow correct torque and sealing procedures
• System must be vacuum-tested and recharged to OEM spec after installation
• If your kit includes an expansion valve/drier, replace them during the same service to reduce repeat labor (verify kit contents)

FITMENT: 

BMW M5 – F90 (2018–2020) Including:

• M5 Sedan (F90) – S63 4.4L Twin-Turbo V8

BMW M8 – F91, F92 (2019–2020) Including:

• M8 Convertible (F91) – S63 4.4L Twin-Turbo V8
• M8 Coupe (F92) – S63 4.4L Twin-Turbo V8

Fitment is part-number specific. Confirm by VIN to ensure the correct evaporator revision for your exact chassis and production date.

Please refer to the “Fitment” section in the product description for compatibility details.