Hella 003259441 Engine Oil Pressure Switch - Upper

Hella Oil Pressure Switch for Audi and Volkswagen

The Hella 003259441 engine oil pressure switch is a direct-fit electrical switch for Audi and Volkswagen applications that require a 12V, 1-pin, normally open contact design. Built with an M10x1 thread and a 24 mm hex, it is specified to switch between 1.6 and 2.0 bar for accurate oil pressure signaling.

Hella is the brand line on this part, and this OE-style switch follows the original white/milk-white color specification used on many factory applications. The 003259441 part number is a practical match for drivers and technicians replacing a worn oil pressure sender on classic and later Audi/VW engines.

Key Features

• Engine oil pressure switch for Audi and Volkswagen vehicles
• 12V, 1-pin connector, normally open contact
• Switch pressure range: 1.6 to 2.0 bar
• M10x1 thread size with 24 mm spanner size
• Rated current: 0.250 A
• Original-style milk white housing color
• Hella 003259441 OE replacement part

Detailed Description

This Hella oil pressure switch is used to monitor engine oil pressure and send the correct signal to the warning circuit when pressure drops below the specified threshold. It is listed for a wide range of Audi A4, A6, A8, Cabriolet, S4, and Volkswagen Golf, Jetta, EuroVan, Passat, Corrado, Fox, Vanagon, Quantum, and Cabriolet applications. For fitment-specific searches, this part is commonly referenced for Audi A4 oil pressure switch replacement, Volkswagen Golf 1.8 bar oil pressure switch, and Audi A6 oil pressure sender applications.

This part cross-references Standard Ignition PS-163 and NGK 8003 for the same application.

What It Helps Address

• Oil pressure warning light staying on or flashing
• Incorrect oil pressure signal to the dash warning system
• Failed switch contact causing intermittent warning behavior
• Replacement needs on 1.8 bar Audi/VW oil pressure switch applications
• Restoration of factory-style oil pressure monitoring on older engines

Installation Notes and Tips

• Verify the thread size is M10x1 before installation.
• Use the specified tightening torque of 20 Nm.
• Confirm the connector style is 1-pin and the circuit is normally open.
• Check the vehicle’s oil pressure switch location and pressure rating before replacement.
• Match the application notes carefully for Audi A4, Audi A6, Audi A8, and Volkswagen Golf/Jetta fitments.

Quality Assurance

Hella supplies OE-level electrical components for European vehicle applications, and this switch is built to the listed factory specifications for pressure range, voltage, and connector type. The 003259441 part number is supported by extensive Audi and Volkswagen fitment coverage, including 1985-2011 model years across the confirmed applications.