059103470CQ / 059103470CT / 059103470CP Valve Cover Membrane for Audi VW Porsche 3.0 TDI
The 059103470CQ / 059103470CT / 059103470CP valve cover membrane is a 61 mm replacement crankcase ventilation diaphragm for selected Audi, Volkswagen and Porsche 3.0 TDI applications. It is designed to repair the existing valve cover ventilation unit without replacing the complete valve cover assembly.
This product is a membrane / diaphragm only. It should not be treated as a repair kit or complete valve cover assembly.
OEM / Reference Numbers
Primary OEM: 059103470CQ, 059103470CT, 059103470CP
Related / Reference Numbers:
- 059103469BD
- 059103469T
- 059103469AE
- 059103469Q
- 059103469P
- 059103470CN
- 059103470CF
- 059103470R
- 059103470K
- 059103470J
- 059103470AL
Part Type
- Valve cover membrane
- Valve cover diaphragm
- PCV membrane
- Crankcase ventilation diaphragm
What This Part Does
This membrane works inside the valve cover crankcase ventilation system. When the original diaphragm becomes damaged, the PCV system may lose pressure control and sealing, causing ventilation-related symptoms.
Compatible Vehicles
- Audi A4 / Avant 2016–2024
- Audi A4 allroad quattro 2016–2024
- Audi A5 / S5 Coupe / Sportback 2017–2024
- Audi A5 / S5 Cabriolet 2017–2024
- Audi A6 / Avant 2011–2018
- Audi A6 Allroad quattro 2013–2018
- Audi A6 / S6 / Avant quattro 2011–2018
- Audi A7 Sportback 2015–2018
- Audi A8 / S8 quattro 2010–2017
- Audi Q5 2010–2018
- Volkswagen Touareg 2011–2018
- Porsche Cayenne 2011–2018
- Porsche Macan 2014–2018
- Porsche Panamera 2010–2016
Please verify OEM number, vehicle model, year and valve cover design before ordering.
Engine / Engine Family / Technical Detail
- Engine focus: 3.0 TDI
- Membrane diameter: 61 mm
- Part format: membrane / diaphragm only
Common Symptoms of Failure
- Whistling noise from the valve cover area
- Rough idle
- Crankcase pressure imbalance
- Vacuum leak symptoms
- Oil leak symptoms related to ventilation pressure
Why Choose This Replacement
- Targets exact OEM intent for 059103470CQ, 059103470CT and 059103470CP
- Supports repair of the existing valve cover ventilation unit
- Cost-effective alternative to replacing the complete valve cover
- Designed for the correct 61 mm membrane repair type
Important Before Ordering
- Verify OEM 059103470CQ, 059103470CT or 059103470CP against your original part
- Compare related references where applicable
- Confirm your 3.0 TDI application and valve cover design
- Make sure you need the membrane only, not a repair kit or complete assembly
What does 059103470CQ / 059103470CT / 059103470CP fit?
These numbers are used for selected Audi, Volkswagen and Porsche 3.0 TDI valve cover membrane applications with the matching valve cover design.
Is 059103470CN the same type of part as 059103470CQ?
059103470CN is a related reference within the same valve cover membrane application family. Compatibility should be confirmed against the original valve cover design.
What does this valve cover membrane do?
It helps the valve cover ventilation system regulate crankcase pressure and maintain correct PCV operation.
What symptoms can indicate membrane failure?
Possible symptoms include whistling noise, rough idle, vacuum leak behavior, pressure imbalance or oil leak symptoms related to ventilation pressure.
Is this a complete valve cover assembly or membrane only?
This product is a membrane / diaphragm only. It is not a repair kit or complete valve cover assembly.
How do I confirm compatibility before ordering?
Match OEM 059103470CQ, 059103470CT or 059103470CP with your original part and confirm vehicle model, engine type, related references 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