057103495N Oil Separator Membrane for VW Touareg Audi Q7 3.0 TDI
The 057103495N oil separator membrane is a replacement crankcase ventilation diaphragm for Volkswagen Touareg and Audi Q7 3.0 TDI applications. This 63 mm membrane is designed to restore the function of the existing oil separator unit without replacing the complete assembly.
This product is a membrane / diaphragm only. It is intended to repair the existing oil separator and should not be treated as a repair kit or a complete oil separator assembly.
OEM / Reference Numbers
Primary OEM: 057103495N
Related / Reference Numbers: No additional reference numbers are explicitly confirmed for this product.
Part Type
- Oil separator membrane
- Crankcase ventilation diaphragm
- PCV membrane
- 3.0 TDI oil separator diaphragm
What This Part Does
This membrane works inside the crankcase ventilation and oil separator system. When the original diaphragm becomes brittle, torn or loses sealing ability, the system may no longer regulate pressure correctly. Replacing the membrane helps restore the function of the existing oil separator unit in a targeted and cost-effective way.
Compatible Vehicles
- Volkswagen Touareg 2011–2018
- Audi Q7 2016–2018
Please verify OEM number, vehicle model, production year and oil separator design before ordering.
Engine / Engine Family / Technical Detail
- Engine focus: 3.0 TDI
- Membrane diameter: 63 mm
- Part format: membrane / diaphragm only
Common Symptoms of Failure
- Crankcase ventilation pressure imbalance
- Oil leak symptoms related to a failed diaphragm
- Whistling noise from the oil separator area
- Need to repair the existing oil separator unit instead of replacing the complete assembly
Why Choose This Replacement
- Targets exact OEM search intent for 057103495N
- Supports repair of the existing oil separator unit
- Cost-effective alternative to replacing the complete assembly
- Designed for the correct 63 mm membrane repair type
Important Before Ordering
- Verify OEM 057103495N against your original part
- Confirm your 3.0 TDI application and oil separator design
- Check the 63 mm membrane size before ordering
- Make sure you need the membrane only, not a repair kit or complete oil separator assembly
What does 057103495N fit?
057103495N is listed for Volkswagen Touareg 2011–2018 and Audi Q7 2016–2018 with 3.0 TDI applications.
What does this oil separator membrane do?
It helps the crankcase ventilation system regulate pressure inside the existing oil separator unit. A damaged membrane can reduce sealing quality and affect normal PCV operation.
What symptoms can indicate diaphragm failure?
Typical signs can include crankcase ventilation pressure imbalance, oil leak symptoms, whistling noise from the oil separator area, or the need to repair the existing unit instead of replacing the complete assembly.
Is this a complete oil separator assembly or membrane only?
This product is a membrane / diaphragm only. It is intended to repair the existing oil separator unit rather than replace the complete assembly.
What technical detail is listed for this membrane?
The membrane diameter is 63 mm.
How do I confirm compatibility before ordering?
Match OEM 057103495N with your original part, verify your vehicle model and year, and confirm the oil separator design and 63 mm membrane size before ordering.
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Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings