Facet 7.3126 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for BMW V8 and V12

Facet 7.3126 is an engine coolant temperature sensor for select BMW applications from 1988-1995. It provides the temperature signal used by the engine management system to monitor coolant conditions and support proper fuel and ignition control.

Key Features

• Engine coolant temperature sensor for BMW cooling system monitoring
• Direct-fit application coverage for select 1988-1995 BMW models
• Supports accurate coolant temperature input to the engine control system
• Facet 7.3126 replacement part number for service matching
• Compatible with BMW 530i, 540i, 740i, 740iL, 840Ci, 850CSi, 750iL, 850Ci, and 850i applications listed below

Detailed Description

This Facet engine coolant temperature sensor is built for BMW vehicles that rely on precise coolant temperature feedback for drivability and engine management. It fits 1994-1995 BMW 530i and 540i, 1993-1995 BMW 740i and 740iL, 1994-1995 BMW 840Ci and 850CSi, 1988-1994 BMW 750iL, 1993-1994 BMW 850Ci, and 1991-1992 BMW 850i. The Facet 7.3126 part number is useful when matching an existing sensor during maintenance or diagnosis on BMW cooling system and engine control repairs.

What It Helps Address

• Incorrect coolant temperature readings
• Hard starting or rough cold operation tied to temperature input
• Engine management faults related to coolant sensor signal
• Cooling system diagnosis where the temperature sender is suspect
• Driveability issues caused by inaccurate engine temperature data

Installation Notes and Tips

Verify the connector style and sensor location against the original part before installation. Inspect the cooling system for leaks, corrosion, or damaged wiring before replacing the sensor. Clear any stored fault codes after installation and confirm the temperature reading with a scan tool or diagnostic equipment.

Quality Assurance

Facet is a recognized aftermarket brand for engine management and electrical components. Part number 7.3126 is cataloged for the BMW applications listed above and should be matched to the vehicle by year, model, and engine configuration before ordering.