03L103469H / 03L103469AB Valve Cover Diaphragm for Audi VW Skoda Seat 1.6 TDI
The 03L103469H / 03L103469AB valve cover diaphragm is a 41 mm replacement PCV membrane for selected Audi, Volkswagen, Skoda and Seat 1.6 TDI applications. It is designed to restore the function of 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: 03L103469H, 03L103469AB
Related / Reference Numbers: No additional reference numbers are explicitly confirmed for this product.
Fits the following vehicles:
Audi
- A1 / A1 Sportback (2010–2019)
- A3 / A3 Sportback / A3 Cabriolet (2003–2015)
- Q3 (2011–2020)
- TT / TT Roadster (2006–2015)
SEAT
- Alhambra (2010–2022)
- Altea / Altea XL (2004–2015)
- Ibiza IV / SC / ST (2009–2015)
- Leon II (2005–2012)
- Toledo IV (2012–2015)
Skoda
- Fabia II / Combi (2010–2014)
- Octavia II / Combi (2004–2013)
- Rapid / Rapid Spaceback (2012–2019)
- Roomster / Praktik (2010–2015)
- Superb II / Combi (2008–2015)
- Yeti (2009–2017)
Volkswagen (VW)
- Beetle / Beetle Cabriolet (2011–2016)
- Caddy III / IV / Alltrack (2010–2020)
- CC (2011–2016)
- Eos (2008–2015)
- Golf VI / Variant / Cabriolet / Plus (2008–2016)
- Jetta III / IV (2009–2017)
- Passat B6 / B7 / CC / Alltrack / Variant (2008–2014)
- Polo V (2009–2015)
- Scirocco III (2008–2017)
- Sharan (2010–2022)
- Tiguan I (2007–2018)
- Touran I FL (2010–2015)
Part Type
- Valve cover diaphragm
- PCV membrane
- Crankcase ventilation diaphragm
- 1.6 TDI valve cover membrane
What This Part Does
This diaphragm works inside the crankcase ventilation system integrated into the valve cover. When the original membrane becomes worn, torn or loses sealing ability, the PCV system may no longer regulate pressure correctly. Replacing the diaphragm helps restore the function of the existing valve cover ventilation unit.
Compatible Vehicles
This diaphragm is intended for selected Audi, Volkswagen, Skoda and Seat 1.6 TDI applications using the matching 03L103469H / 03L103469AB valve cover design.
Please verify OEM number, vehicle model, engine type and valve cover design before ordering.
Engine / Engine Family / Technical Detail
- Engine focus: 1.6 TDI
- Diaphragm diameter: 41 mm
- Part format: diaphragm / membrane only
Common Symptoms of Failure
- Whistling noise from the valve cover area
- Rough idle
- High fuel consumption
- Increased oil consumption
- Air leak symptoms
- Incorrect crankcase pressure regulation
Why Choose This Replacement
- Targets exact OEM intent for 03L103469H and 03L103469AB
- Supports repair of the existing valve cover ventilation unit
- Cost-effective alternative to replacing the complete valve cover
- Designed for the correct 41 mm diaphragm repair type
Important Before Ordering
- Verify OEM 03L103469H or 03L103469AB against your original part
- Confirm your 1.6 TDI application and valve cover design
- Check the 41 mm membrane size
- Make sure you need the diaphragm only, not a repair kit or complete assembly
What does 03L103469H / 03L103469AB fit?
These numbers are used for selected Audi, Volkswagen, Skoda and Seat 1.6 TDI valve cover diaphragm applications using the matching 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?
Typical symptoms can include whistling noise, rough idle, increased fuel or oil consumption, air leak behavior and 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.
What technical detail is listed for this diaphragm?
The diaphragm diameter is 41 mm.
How do I confirm compatibility before ordering?
Match OEM 03L103469H or 03L103469AB with your original valve cover and confirm the engine type, vehicle model and 41 mm diaphragm 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