Febi 01789 Engine Coolant Level Sensor

Engine Coolant Level Sensor for BMW Applications

Febi 01789 is an engine coolant level sensor built with a black plastic housing, a 95.0 mm length, a 30.0 mm outer diameter, and a 2-connection design. It is used to monitor coolant level in the expansion tank and supports accurate warning-system operation on select BMW models.

Key Features

• Brand: Febi
• Part number: 01789
• Engine coolant level sensor for cooling-system monitoring
• Black plastic construction
• 95.0 mm overall length
• 30.0 mm outer diameter
• 2 electrical connections
• OE cross-reference: 61 31 1 384 739

Detailed Description

This Febi coolant level sensor is specified for BMW cooling-system applications that use a 95 mm sensor body and a 2-pin connection layout. The plastic sensor housing is designed for direct replacement use in the coolant reservoir, helping maintain proper level detection for the instrument cluster or warning circuit. Part number 01789 is listed for BMW 318is, 320i, 323i, 323is, 325i, 325is, 328i, 328is, 525i, and 525iT applications within the stated model years.

For buyers searching for a BMW coolant level sensor, BMW engine coolant level sensor, or Febi 01789 replacement, verify the connector count and sensor dimensions against the original part before ordering. This part cross-references OE number 61 31 1 384 739 for the same application.

Vehicle Fitment

• Fits 1998-1999 BMW 323is, N/A. Notes: Length 1 (mm): 95; No. of Connections: 2; To Construction Year: 09/1995
• Fits 1996-1999 BMW 328i, N/A. Notes: Length 1 (mm): 95; No. of Connections: 2; To Construction Year: 09/1995
• Fits 1996-1999 BMW 328is, N/A. Notes: Length 1 (mm): 95; No. of Connections: 2; To Construction Year: 09/1995
• Fits 1998 BMW 323i, N/A. Notes: Length 1 (mm): 95; No. of Connections: 2; To Construction Year: 09/1995
• Fits 1992-1995 BMW 320i, N/A. Notes: Length: 95mm, Number of Connections: 2
• Fits 1992-1995 BMW 325i, N/A. Notes: Length: 95mm, Number of Connections: 2
• Fits 1992-1995 BMW 325is, N/A. Notes: Length: 95mm, Number of Connections: 2
• Fits 1991-1995 BMW 525i, N/A. Notes: Length: 95mm, Number of Connections: 2
• Fits 1993 BMW 525iT, N/A. Notes: Length: 95mm, Number of Connections: 2
• Fits 1991 BMW 318is, N/A. Notes: Length: 95mm, Number of Connections: 2

Installation Notes and Tips

Confirm the sensor length, outer diameter, and 2-connection plug style before installation. Inspect the coolant reservoir opening and electrical connector for wear, corrosion, or coolant residue, and compare the removed sensor to Febi 01789 to confirm the correct BMW application.

Quality Assurance

Febi supplies replacement parts for European vehicle service applications, and this coolant level sensor is built to match the listed OE-style dimensions and connector configuration for the specified BMW fitments.