BMW 5 Series Coolant Expansion Tank – OEM Part No. 17138614293 – Prevents Coolant Leaks & Maintains Proper Cooling System Pressure | Fits BMW F07, F10 & F11 (2010–2017)

Restore factory A/C performance and correct refrigerant leaks at the source with this OEM-style A/C Evaporator Core, engineered for BMW 2 Series models that utilize BMW Part No. 64119229487.

The evaporator core is a critical HVAC component located inside the climate control housing behind the dashboard. It is responsible for absorbing heat and humidity from incoming cabin air, allowing the air conditioning system to deliver consistent, ice-cold airflow. Over time, BMW evaporators can fail due to internal corrosion, material fatigue, and prolonged exposure to condensation, resulting in micro-leaks that gradually reduce cooling efficiency.

Common symptoms of a failing evaporator include weak or inconsistent A/C performance, repeated refrigerant loss, musty odors from the vents, and A/C pressure-related fault codes. Because evaporator replacement requires dashboard and HVAC housing removal, selecting the correct OEM-spec evaporator is essential to avoid repeat labor and costly rework.

This replacement evaporator core is manufactured to OEM dimensions, flow characteristics, and sealing specifications, ensuring proper fitment within the factory HVAC housing and correct alignment with original refrigerant lines. When installed correctly, it restores original cooling efficiency, stable system pressures, and long-term reliability.

BMW used multiple evaporator revisions depending on chassis, production date, and HVAC configuration. OEM Part No. 64119229487 applies to vehicles produced between 07/2011 and 04/2015 and has since been superseded by BMW Part No. 64116975553, which BMW designates as backward-compatible. VIN verification is strongly recommended prior to ordering to confirm the correct evaporator revision for your vehicle.

Common Symptoms of a Failed Evaporator

• A/C blows warm or cools intermittently
• Repeated refrigerant recharges with no visible external leaks
• Musty or mold-like odor from HVAC vents
• A/C pressure faults or system shutdown
• Dye or oily residue detected during leak testing

Key Features

• Direct OEM-style replacement for BMW Part No. 64119229487
• Restores factory A/C cooling performance and cabin comfort
• Precision-formed aluminum core for efficient heat exchange
• OEM-correct sealing surfaces to help prevent repeat leaks
• Designed for professional, dash-out HVAC repairs

Installation Notes

• Evaporator replacement requires dashboard and HVAC housing removal
• System must be vacuum-tested and recharged to BMW specification after installation
• Replace all required O-rings and seals during service
• Professional installation is strongly recommended

Important Fitment Notice

This evaporator core is production-date specific and applies to vehicles built 07/2011–04/2015. BMW superseded this part number with 64116975553, which may be supplied depending on availability. VIN verification is required to ensure correct fitment and HVAC configuration.

FITMENT: 

BMW 5 Series Gran Turismo – F07 LCI (2012–2017) Including:

• 535i GT (F07 LCI) – N55 3.0L Turbo
• 550i GT (F07 LCI) – N63 4.4L Twin-Turbo

BMW 5 Series Sedan – F10 (2010–2013) Including:

• 528i Sedan (F10) – N52 / N20
• 535i Sedan (F10) – N55 3.0L Turbo
• 550i Sedan (F10) – N63 4.4L Twin-Turbo

BMW 5 Series Sedan – F10 LCI (2013–2016) Including:

• 528i Sedan (F10 LCI) – N20
• 535i Sedan (F10 LCI) – N55 3.0L Turbo
• 550i Sedan (F10 LCI) – N63 4.4L Twin-Turbo

BMW 5 Series Touring – F11 (2010–2013) Including:

• 528i Touring (F11) – N52 / N20
• 535i Touring (F11) – N55 3.0L Turbo

BMW 5 Series Touring – F11 LCI (2012–2017) Including:

• 528i Touring (F11 LCI) – N20
• 535i Touring (F11 LCI) – N55 3.0L Turbo

Supersedes 17137649733 and 17137619189 (BMW-approved backward compatibility)

Maintains proper cooling system pressure and coolant level regulation

VIN verification required to confirm correct cooling system configuration

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