Nissens 70523 HVAC Heater Core

Overview of Nissens HVAC Heater Core 70523

The Nissens HVAC Heater Core 70523 is engineered for reliable heating performance in select BMW models. Designed with durable aluminum construction, this heater core ensures efficient heat transfer and long-lasting operation for your vehicle's HVAC system.

• Core and tank made from corrosion-resistant aluminum
• Brazed cooling fins construction for enhanced durability
• Core dimensions: 9.96 inches length, 5.67 inches height, 1.06 inches width
• Pipe not included with this heater core
• Compatible with multiple BMW 1 Series, 3 Series, M3, and X1 models

Detailed Product Description

The Nissens heater core 70523 features an aluminum core and tank, providing excellent resistance to corrosion and heat. Its brazed cooling fins construction improves heat dissipation and structural integrity, making it suitable for the demanding conditions of automotive HVAC systems. With precise core dimensions of 9.96 inches in length, 5.67 inches in height, and 1.06 inches in width, this heater core fits seamlessly into the HVAC assembly of compatible BMW vehicles.

This heater core is designed specifically for BMW models including the 1 Series M, 128i, 135i, 328i, 328i xDrive, 328xi, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, M3, and X1. The part number 70523 ensures you receive the correct replacement component for your vehicle’s heating system.

Common Applications and Issues Resolved

• Restores proper cabin heating performance in BMW 3 Series and 1 Series models
• Eliminates coolant leaks caused by damaged or corroded heater cores
• Prevents fogging and moisture buildup inside the vehicle cabin
• Addresses overheating issues related to inefficient heat exchange
• Replaces faulty heater cores that cause HVAC system malfunctions

Installation Notes and Tips

• Ensure compatibility by verifying the part number 70523 with your BMW model
• Professional installation is recommended due to the complexity of HVAC system disassembly
• Inspect and flush the cooling system before installing the new heater core to prevent contamination
• Check all hose connections and seals to avoid leaks after installation

Quality Assurance and Warranty

Nissens manufactures this heater core to meet OEM specifications, using high-quality aluminum materials and brazed construction techniques. While specific warranty details may vary, Nissens products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.