Vemo V30-73-0082 Oil Pressure Switch

Vemo V30-73-0082 Oil Pressure Switch

The Vemo V30-73-0082 Oil Pressure Switch is a precision‑engineered component designed to monitor and regulate engine oil pressure in high‑performance automotive applications. It serves as an essential safety device, ensuring that the engine operates within optimal lubrication parameters and protecting critical internal components from damage due to low or excessive oil pressure.

Key Functional Characteristics

• Operating Pressure Range: 0.30 – 0.55 bar (4.35 – 7.98 psi) – ideal for light‑to‑medium duty engines.
• Connection Thread: M14 × 1.5 mm, single‑pole configuration – compatible with standard automotive oil pressure ports.
• Electrical Rating: 12 V DC, 0.2 A – suitable for modern vehicle electrical systems.
• Signal Type: Normally open (NO) switch – closes when oil pressure exceeds the set threshold.
• Material Construction: High‑temperature resistant alloy body with a sealed diaphragm to prevent oil leakage and contamination.

Design Features for Reliability

The V30-73-0082 incorporates several design elements that enhance durability and performance:

• Sealed Diaphragm: Prevents oil ingress into the electrical contacts, reducing corrosion risk.
• High‑Temperature Housing: Maintains structural integrity up to 200 °C, accommodating engine heat cycles.
• Compact Footprint: Fits within tight engine bay spaces without compromising airflow or maintenance access.
• Robust Threading: M14 × 1.5 threads provide secure attachment and resist vibration loosening.

Compatibility Overview

The V30-73-0082 is engineered to fit a wide range of Mercedes‑Benz models, particularly those from the G‑Class Cabrio series (W460 1980–1987) and various T1/T2 platforms. Its universal M14 thread allows installation in many other automotive and industrial engines that require oil pressure monitoring within the specified range.

Installation Procedure

1. Preparation: Ensure the engine is cool and disconnect the battery to avoid accidental electrical activation.
2. Removal of Existing Switch: Unscrew the old oil pressure switch using a suitable wrench. Carefully note the orientation for correct reinstallation.
3. Cleaning: Clean the mounting surface with a solvent to remove oil residue and debris, ensuring a tight seal.
4. Mounting: Align the M14 thread of the V30-73-0082 with the engine port. Tighten securely, but avoid over‑torqueing which could damage threads.
5. Electrical Connection: Connect the two leads to the vehicle’s oil pressure monitoring circuit. Verify polarity and secure connections with heat‑shrink tubing or electrical tape.
6. Testing: Reconnect the battery, start the engine, and monitor the oil pressure gauge. The switch should activate (close) when pressure reaches the set threshold, indicating proper operation.

Maintenance Tips

• Inspect the switch annually for signs of wear or corrosion on the contacts.
• Replace the switch if oil leakage is observed around the mounting area.
• Verify electrical continuity with a multimeter before and after installation to ensure no open circuits.

Performance Benefits

By providing accurate, reliable pressure monitoring, the V30-73-0082 helps maintain engine longevity. It prevents:

• Oil starvation during high‑load conditions.
• Over‑pressure situations that could damage seals and bearings.
• Unnecessary wear on critical components such as pistons, camshafts, and crankshafts.

Technical Data Sheet Summary

Conclusion

The Vemo V30-73-0082 Oil Pressure Switch stands out as a dependable, high‑quality component for automotive engines requiring precise oil pressure monitoring. Its robust construction, clear operating range, and compatibility with a broad spectrum of Mercedes‑Benz models make it an ideal choice for both original equipment and aftermarket applications. By ensuring that engine oil pressure remains within safe limits, this switch plays a pivotal role in preserving engine health and extending vehicle service life.