Vaico V30-2524 Engine Crankcase Vent Valve

Engine Crankcase Vent Valve for Mercedes-Benz

Restore proper crankcase ventilation with the Vaico VAICO V30-2524 engine crankcase vent valve. This pressure-controlled diaphragm valve mounts at the cylinder head and is built with a Polyamid 6.6 housing and FPM/ACM seals for OE-style service on select Mercedes-Benz applications.

Compatible with Mercedes-Benz E350, C350, ML350, GLK350, SLK350, E400, C300, R350, and GLE350 applications listed below, this part is a direct-fit replacement for vehicles using OE reference 276 010 03 31. The VAICO product line focuses on application-specific replacement components for European vehicles, with attention to fitment and material selection.

• Part number: V30-2524
• Engine crankcase vent valve for emission control and crankcase ventilation service
• Pressure-controlled diaphragm valve design
• Fitting position: cylinder head
• Housing material: Polyamid 6.6
• Seal material: FPM (fluoride rubber) / ACM (polyacrylate rubber)
• Supplied with gaskets/seals
• Recommended replacement interval: 60,000 km or 3 years
• Cross-reference: OE numbers 276 010 03 31 and A 276 010 03 31

Detailed Product Overview

The Vaico VAICO V30-2524 crankcase vent valve regulates pressure in the crankcase ventilation system by using a diaphragm-style, pressure-controlled operating mode. Its cylinder-head mounting location and OE-matched reference numbers make it a practical replacement for maintaining factory-style ventilation routing on Mercedes-Benz E350, C350, ML350, GLK350, SLK350, E400, C300, R350, and GLE350 models. The compact housing measures 175 mm long, 125 mm wide, and 60 mm high, with a listed weight of 0.152 kg.

What It Helps Address

• Excess crankcase pressure
• Oil vapor separation and ventilation faults
• Rough idle related to crankcase ventilation issues
• Oil leaks caused by ventilation system restriction or diaphragm wear
• Check engine concerns tied to crankcase ventilation performance

Installation Notes and Tips

Install at the cylinder head and verify the sealing surfaces are clean before assembly. Replace worn gaskets and seals during service, and confirm the ventilation hoses and adjacent components are free of cracks, blockage, or contamination. For maintenance planning, Vaico recommends replacement at 60,000 km or 3 years.

• Fits 2016-2017 Mercedes-Benz GLE350, N/A
• Fits 2012-2016 Mercedes-Benz E350, N/A
• Fits 2012-2016 Mercedes-Benz SLK350, N/A
• Fits 2012-2015 Mercedes-Benz C350, N/A
• Fits 2013-2015 Mercedes-Benz E400, N/A
• Fits 2013-2015 Mercedes-Benz GLK350, N/A
• Fits 2012-2015 Mercedes-Benz ML350, N/A
• Fits 2013-2014 Mercedes-Benz C300, N/A
• Fits 2012 Mercedes-Benz R350, N/A

Quality Assurance

VAICO replacement parts are built for European vehicle applications with OE-referenced fitment and material specifications. This part cross-references OE numbers 276 010 03 31 and A 276 010 03 31 for the same application.