Global Parts 1711418 HVAC Pressure Switch

BMW HVAC Pressure Switch for A/C Control

Global Parts 1711418 is an HVAC pressure switch used in BMW air conditioning systems to send pressure feedback to the engine management system. On modern vehicles, the ECM uses this signal to manage A/C operation; on earlier BMW applications, the switch can directly shut the compressor off to help prevent compressor damage.

• HVAC pressure switch for BMW A/C system pressure monitoring
• Rectangle connector shape with female connector gender
• Supports ECM-controlled A/C operation on later vehicles
• Used in compressor protection logic on earlier vehicles
• Global Parts part number 1711418 for direct reference

Detailed Product Information

This HVAC pressure switch is a fitment-specific replacement for BMW 3 Series and M3 applications that use binary operation pressure switch logic. Compatible With 1984-1993 BMW 318i, 1984-1987 BMW 325e, 1986-1987 BMW 325es, 1987-1993 BMW 325i, 1987-1989 BMW 325is, 1991 BMW 318is, 1991 BMW 325iX, 1991-1992 BMW 318i, 1991-1992 BMW 325is, and 1988-1991 BMW M3. The Global Parts 1711418 pressure switch is built around the electrical feedback function required by the A/C control strategy on these vehicles.

This part cross-references Four Seasons 36571 for the same application.

What It Is Used For

• A/C compressor cycling or shutdown when refrigerant pressure is outside the normal range
• Loss of HVAC pressure signal to the ECM
• Intermittent compressor engagement on BMW 325i, 325is, and M3 models
• Faults related to pressure-based A/C control logic
• Restoring proper HVAC pressure switch operation on BMW 318i and 325e applications

Installation Notes and Tips

Verify the connector shape and connector gender before installation; this unit uses a rectangle female connector. Match the vehicle’s original pressure switch style and confirm the BMW application by year and model before replacement. Inspect the A/C system for underlying pressure or refrigerant issues so the new switch is not exposed to the same fault condition.

Quality Assurance

Global Parts supplies this HVAC pressure switch as a replacement component for the listed BMW applications. Part number 1711418 is referenced against known interchange numbers for application matching and catalog verification.