Nissens 850318 A/C Condenser Fan Assembly

Overview

This Nissens A/C condenser fan assembly is built for BMW cooling systems that need stable airflow and consistent electrical control. Part number 850318 features a 12-volt brushed motor, a single fan design, and a plastic construction for direct replacement use in a wide range of BMW applications.

Compatible with BMW 840Ci, 850Ci, 525i, 530i, 540i, 850CSi, 740i, 740iL, 750iL, 525iT, 535i, M5, 318i, 318is, 325i, 325is, L6, L7, 735i, 735iL, 850i, and M3 applications, this fan assembly is engineered for OE-level electrical compliance and controlled operation. Part number 850318 is also cross-referenced to Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Key Features

• 12-volt brushed motor for standard automotive electrical systems
• Single-fan design with 10 blades for focused airflow
• Plastic construction for lightweight packaging
• Female 1-pin connector with 3 terminals
• Clockwise rotation for application-specific airflow direction
• No shroud, control unit, or resistor included

Detailed Description

Nissens 850318 is an A/C condenser fan assembly designed to support heat exchange performance in BMW HVAC and cooling packages. The unit uses OE-quality control electronics and is reengineered to meet original equipment requirements for safe operation. Nissens also states that its cooling fans conform to ISO 7637, ISO 16750, and EMC directive requirements, which supports stable electrical performance in demanding vehicle environments.

This part number 850318 is used across multiple BMW chassis and model lines, including 5 Series, 7 Series, 8 Series, and M models. If you are replacing a worn BMW 525i or BMW 740i fan assembly, or servicing a BMW 850Ci or BMW M5 cooling system, this unit provides a fitment-specific replacement option with the correct connector and rotation characteristics.

What It Helps Address

• Weak condenser airflow from a failing fan motor
• Intermittent fan operation caused by worn electrical components
• Cooling-system stress during A/C operation
• Noise or vibration from an aging fan assembly
• Electrical compatibility issues in OE-style fan replacement work

Installation Notes and Tips

Verify connector style, terminal count, fan rotation, and mounting dimensions before installation. This assembly is listed without a shroud, control unit, or resistor, so those components must be confirmed separately against the vehicle’s original setup. Fitment is application-specific across BMW models, so compare the original unit to part number 850318 before ordering.

Quality Assurance

Nissens positions this fan assembly as an OE-compliant cooling component with reengineered electronics for safe operation and stable long-life performance. The part is built to meet relevant electrical compatibility standards, including ISO 7637, ISO 16750, and EMC requirements.