077103245B / 036103765A PCV Membrane for Audi VW Skoda Valve Cover
The 077103245B / 036103765A PCV membrane is a replacement crankcase ventilation diaphragm for selected Audi, Volkswagen and Skoda applications. It is designed to restore the existing valve cover ventilation or breather unit without replacing the complete assembly.
This product is a membrane / diaphragm only. It should not be treated as a complete valve cover, complete oil separator or full crankcase ventilation assembly.
OEM / Reference Numbers
Primary OEM: 077103245B, 036103765A
Related / Reference Numbers:
- 078103245E
- 077103245C
- 036103464AC
- 036103464S
Part Type
- PCV membrane
- Crankcase ventilation diaphragm
- Valve cover membrane
- Breather diaphragm
What This Part Does
This membrane helps regulate crankcase ventilation pressure inside the existing valve cover or breather system. When the original diaphragm fails, the system may lose sealing ability and create abnormal crankcase pressure or vacuum leak symptoms.
Compatible Vehicles
- Volkswagen Passat
- Volkswagen Phaeton
- Volkswagen Touareg
- Skoda Superb
- Audi A4
- Audi A6
- Audi A8
Please verify OEM number, vehicle model, engine type and ventilation unit design before ordering.
Engine / Engine Family / Technical Detail
- Application focus: Audi / Volkswagen / Skoda valve cover ventilation systems
- Part format: membrane / diaphragm only
Common Symptoms of Failure
- Increased gas pressure in the crankcase
- Oil pushed through seals
- Engine vibration
- Reduced engine thrust
- Membrane jamming or sticking
- Vacuum leak symptoms
Why Choose This Replacement
- Targets exact OEM intent for 077103245B and 036103765A
- Supports repair of the existing crankcase ventilation unit
- Cost-effective alternative to replacing the complete assembly
- Uses a focused membrane-only repair approach
Important Before Ordering
- Verify OEM 077103245B or 036103765A against your original part
- Compare related references where applicable
- Confirm vehicle model and ventilation system design
- Make sure you need the membrane only, not a complete assembly
What does 077103245B / 036103765A fit?
These numbers are used for selected Audi, Volkswagen and Skoda crankcase ventilation or valve cover membrane applications, including Passat, Phaeton, Touareg, Superb, A4, A6 and A8 model groups.
Is 078103245E the same type of part as 077103245B?
078103245E is a related reference number within the same PCV / crankcase ventilation membrane family.
What does this PCV membrane do?
It helps regulate crankcase pressure and sealing inside the existing ventilation or valve cover breather system.
What symptoms can indicate membrane failure?
Possible symptoms include increased crankcase pressure, oil pushed through seals, vibration, reduced thrust, membrane sticking or vacuum leak behavior.
Is this a complete valve cover assembly or membrane only?
This product is a membrane / diaphragm only. It is intended to repair the existing unit rather than replace the full assembly.
How do I confirm compatibility before ordering?
Match OEM 077103245B or 036103765A with your original part and verify the related references, vehicle model and breather design 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