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Womala Oil Separator 30757394 Exhaust Valve Separator for Volvo S40 V50 Engine Auto Parts
The Oil Separator (Exhaust Valve Separator, OE Number: 30757394) is a key component of the engine’s crankcase ventilation system, compatible with Volvo S40 (04–), V50, C30, S80 (07–), and V70 (08–) models. As an OE-grade part, it is typically installed in the engine bay, connected to the crankcase and intake manifold. Its core role is to separate oil droplets from the crankcase’s blow-by gas (a mixture of air, fuel vapor, and oil mist) before the gas is recirculated into the intake system—preventing oil from entering the combustion chamber and reducing carbon deposits on valves and injectors.
Constructed from heat-resistant, oil-resistant plastic (or aluminum alloy for high-stress areas) with internal baffle plates or filter media, this separator efficiently traps oil droplets. The separated oil drains back into the crankcase, while the cleaned gas is sent to the intake for combustion. It adheres to Volvo’s strict performance standards, ensuring high separation efficiency and resistance to engine bay heat (up to 150°C+) and oil chemical erosion—avoiding clogs or leaks that would compromise the ventilation system.
Core Functions
Oil-Gas Separation: Filters oil mist from crankcase blow-by gas using internal baffles or filters. This prevents oil from being drawn into the intake manifold and combustion chamber, which would otherwise cause excessive oil consumption, carbon buildup on valves, or reduced engine performance.
Crankcase Pressure Regulation: Maintains proper crankcase pressure by allowing filtered blow-by gas to recirculate. Excessive pressure would cause oil leaks from gaskets or seals, while insufficient ventilation could lead to sludge formation.
Emission Reduction: By ensuring clean blow-by gas recirculation, it reduces unburned hydrocarbons (a key pollutant) in exhaust emissions, helping the vehicle meet environmental standards.
Compatible Vehicles
This Oil Separator (OE: 30757394) is tailored for the following Volvo models and their respective year ranges:
Model
Applicable Year Range
Volvo S40 (04–)
2005–2012
Volvo V50
2005–2012
Volvo C30
2007–2013
Volvo S80 (07–)
2008–2011
Volvo V70 (08–)
2008–2011
Notes: The oil separator’s design may vary slightly by engine variant (e.g., 1.6L vs. 2.4L) even for the same model. For 100% fitment accuracy, confirm compatibility with your vehicle’s engine displacement and crankcase ventilation system layout via its VIN (Vehicle Identification Number) or consult Volvo’s official service manual.
Frequently Asked Questions
Q: How to determine if the bumper bracket needs replacement?
A: Signs of a failing bumper bracket include visible damage or deformation, misaligned bumper panels, unusual noises from the front end, or if the bumper appears loose or sagging on one side.
Q: What should be paid attention to when replacing the bumper bracket?
A: For optimal results, we recommend professional installation. Key considerations include ensuring proper alignment of all mounting points, checking for additional damaged components, and verifying all fasteners are properly torqued to specification.
Why Choose Our Products
Extensive Industry Experience: 13 years specializing in Volvo auto parts with precise product matching and technical solutions.
Quality Assurance: 10-stage quality inspection process including durability testing, surface roughness analysis, and dimensional verification.
Manufacturing Excellence: 15,000㎡ production base with 10,000+ SKUs in inventory for fast order fulfillment.
Strategic Partnerships: Collaborations with 50+ factories including suppliers to international brands like Bosch and Hella.
Company Profile
Established in Guangzhou China, Womala Auto parts as a comprehensive company with five branches has engaged in Volvo parts for more than 10 years.There are hundreds of professional staff working in our supply department, sales and logistic support departments.Thanks to the deep coop... Company Profile
Established in Guangzhou China, Womala Auto parts as a comprehensive company with five branches has engaged in Volvo parts for more than 10 years.There are hundreds of professional staff working in our supply department, sales and logistic support departments.Thanks to the deep coop...
