Vaico V20-1518 Engine Oil Separator

Engine Oil Separator for BMW V20-1518

The Vaico V20-1518 engine oil separator is a pressure-controlled breather valve assembly for the cylinder head. It is built with a Polyamid 6.6 housing and is specified for BMW 540i, 740i, and 740iL applications across the listed model years.

Key Features

• Engine oil separator for cylinder head mounting
• Pressure-controlled operating mode for crankcase ventilation management
• Breather valve design
• Polyamid 6.6 housing material
• Dimensions: 215 mm height, 120 mm width, 65 mm length
• Recommended replacement interval: 60,000 km or 3 years
• Recommended accessory part number: V20-0003

Product Details

VAICO V20-1518 is an engine oil separator for BMW crankcase ventilation service, positioned at the cylinder head and engineered for pressure-controlled operation. This part is listed for 1998-2003 BMW 540i, 1998-2001 BMW 740i, and 1998-2001 BMW 740iL applications, making it a direct-fit service part for common BMW V8 and luxury sedan maintenance needs. The VAICO product line focuses on OE-style replacement components for European vehicles, and this separator follows the specified fitment and service interval guidance for routine maintenance.

This part cross-references OE numbers 11 15 1 705 272 and 11 15 1 747 066 for the same application. The part number V20-1518 is also useful when searching for BMW oil separator replacement parts by exact reference.

What It Is Used For

• Restoring crankcase ventilation function on BMW 540i, 740i, and 740iL models
• Addressing oil vapor separation issues at the cylinder head
• Replacing a pressure-controlled breather valve that no longer regulates properly
• Supporting maintenance when oil contamination or ventilation faults are present
• Servicing vehicles at the recommended 60,000 km or 3-year interval

Installation Notes and Tips

Install the V20-1518 at the cylinder head location specified for the vehicle. Confirm the replacement part number V20-0003 for any recommended accessory needs before service. Verify the vehicle year and model carefully, especially on 1998 BMW 540i, 740i, and 740iL applications noted as from 09/1998.

Quality Assurance

VAICO parts are cataloged for European vehicle service applications and this oil separator is listed with defined dimensions, material, operating mode, and replacement interval guidance to support accurate maintenance planning.