03G103469G / 03G103475E Valve Cover Diaphragm for Audi VW Skoda Seat 1.9 2.0 TDI
The 03G103469G / 03G103475E valve cover diaphragm is a replacement PCV membrane for selected Audi, Volkswagen, Skoda and Seat 1.9 TDI and 2.0 TDI applications. It is designed to restore the existing valve cover crankcase ventilation system without replacing the complete valve cover assembly.
This product is a diaphragm / membrane only. It should not be treated as a repair kit or complete valve cover assembly.
OEM / Reference Numbers
Primary OEM: 03G103469G, 03G103475E
Related / Reference Numbers:
- 070103469B
Part Type
- Valve cover diaphragm
- PCV valve cover membrane
- Crankcase ventilation diaphragm
- Breather membrane
What This Part Does
This diaphragm works inside the valve cover ventilation unit. It helps regulate crankcase pressure and maintain correct breather system operation. When the membrane is damaged, the system can lose sealing ability and cause ventilation imbalance.
Compatible Vehicles
This diaphragm is intended for selected Volkswagen, Audi, Seat and Skoda applications using compatible 1.9 TDI and 2.0 TDI valve cover designs.
Please verify OEM number, engine code and valve cover design before ordering.
Engine / Engine Family / Technical Detail
- Engine focus: 1.9 TDI and 2.0 TDI
- Engine codes: BMM, BSU, BLS, BXJ, BMP, BMT
- Part format: diaphragm / membrane only
Common Symptoms of Failure
- Whistling noise from the valve cover area
- Rough idle
- Vacuum leak symptoms
- Oil consumption increase
- Incorrect crankcase pressure regulation
Why Choose This Replacement
- Targets exact OEM intent for 03G103469G and 03G103475E
- Supports repair of the existing valve cover ventilation unit
- Cost-effective alternative to replacing the complete valve cover
- Suitable for a focused membrane-only repair
Important Before Ordering
- Verify OEM 03G103469G or 03G103475E against your original part
- Check related reference 070103469B where applicable
- Confirm your engine code and valve cover design
- Make sure you need a diaphragm only, not a repair kit or complete valve cover assembly
What does 03G103469G / 03G103475E fit?
These numbers are used for selected Audi, Volkswagen, Skoda and Seat 1.9 TDI and 2.0 TDI valve cover diaphragm applications with the matching ventilation design.
Is 070103469B the same type of part as 03G103469G?
070103469B is a related reference number within the same valve cover diaphragm application group.
What does this PCV valve cover diaphragm do?
It helps the valve cover ventilation unit regulate crankcase pressure and maintain correct breather system function.
What symptoms can indicate diaphragm failure?
Symptoms can include whistling noise, rough idle, vacuum leak behavior, increased oil consumption or pressure imbalance.
Is this a complete valve cover assembly or diaphragm only?
This product is a diaphragm / membrane only. It is intended to repair the existing valve cover ventilation unit.
How do I confirm compatibility before ordering?
Match OEM 03G103469G or 03G103475E with your original valve cover and confirm your engine code, vehicle model and valve cover design.
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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