03L103469 Valve Cover Diaphragm for Audi VW Skoda Seat 1.6 2.0 3.0 TDI
The 03L103469 valve cover diaphragm is a replacement crankcase ventilation membrane for selected Audi, Volkswagen, Skoda and Seat 1.6, 2.0 and 3.0 TDI applications. It is designed to restore the existing valve cover ventilation unit 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: 03L103469
Related / Reference Numbers:
- 03L103469A
- 03L103469L
- 03L103469M
- 03L103469F
- 03L103469R
- 03L103469C
- 03L103469H
- 03L103469D
- 03L103469G
- 03L103469AB
- 03L103469S
- 03L103469T
- 059103470AS
- 059103470AL
Part Type
- Valve cover diaphragm
- Valve cover membrane
- PCV membrane
- Crankcase ventilation diaphragm
What This Part Does
This diaphragm works inside the valve cover crankcase ventilation system. When the original membrane becomes damaged, torn or stiff, the system may lose pressure regulation and sealing, causing PCV-related operating symptoms.
Compatible Vehicles
This diaphragm is intended for selected Audi, Volkswagen, Skoda and Seat diesel applications using the matching 03L103469 valve cover ventilation design.
Please verify OEM number, engine family and valve cover design before ordering.
Engine / Engine Family / Technical Detail
- Engine focus: 1.6 TDI, 2.0 TDI, 3.0 TDI
- Part format: diaphragm / membrane only
Common Symptoms of Failure
- Whistling noise from the valve cover area
- Rough or unstable idle
- Vacuum leak symptoms
- Crankcase pressure imbalance
- Oil leak symptoms related to ventilation pressure
- Increased oil consumption
Why Choose This Replacement
- Targets exact OEM intent for 03L103469
- Supports repair of the existing valve cover ventilation unit
- Cost-effective alternative to replacing the complete valve cover
- Includes supporting related OEM coverage for the 03L103469 family
Important Before Ordering
- Verify OEM 03L103469 against your original part
- Compare related references where applicable
- Confirm your engine family and valve cover design
- Make sure you need the diaphragm only, not a repair kit or complete valve cover assembly
What does 03L103469 fit?
03L103469 is used for selected Audi, Volkswagen, Skoda and Seat 1.6, 2.0 and 3.0 TDI valve cover diaphragm applications with the matching ventilation design.
Is 03L103469A the same type of part as 03L103469?
03L103469A is a related reference within the same valve cover diaphragm application family. Compatibility should be confirmed against the original valve cover design.
What does this valve cover diaphragm do?
It helps the valve cover ventilation system regulate crankcase pressure and maintain correct PCV operation.
What symptoms can indicate diaphragm failure?
Possible symptoms include whistling noise, rough idle, vacuum leak behavior, pressure imbalance, oil leak symptoms or increased oil consumption.
Is this a complete valve cover assembly or diaphragm only?
This product is a diaphragm / membrane only. It is not a repair kit or complete valve cover assembly.
How do I confirm compatibility before ordering?
Match OEM 03L103469 with your original valve cover, compare related references and confirm engine family and valve cover design.
Read All
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