036103464AD / 036103464AH / 036103464AK Oil Separator Membrane for VAG 1.4L
036103464AD, 036103464AH and 036103464AK are OEM reference numbers for the oil separator membrane used in selected VAG 1.4L applications. The product page also lists related oil separator numbers 036103464AJ and 036103464AB. It explicitly warns that 036103464AC uses a different 86 mm membrane.
OEM / Reference Numbers
- 036103464AD
- 036103464AH
- 036103464AK
- 036103464AJ
- 036103464AB
Not the Same Fitment
- 036103464AC – uses a different 86 mm membrane
Part Type
- Oil separator membrane
- Oil separator diaphragm
- PCV membrane
- Crankcase ventilation diaphragm
What This Part Does
The oil separator membrane is an internal working element of the crankcase ventilation system. Its function is to regulate pressure and airflow inside the oil separator assembly. When the membrane hardens, cracks or tears, unmetered air can enter the engine and the ventilation system can no longer work correctly.
Compatible Brands
- Audi
- Seat
- Skoda
- Volkswagen
Engine Family
- 1.4L VAG applications
Common Symptoms of a Failed Oil Separator Membrane
- Whistling and suction noise at the oil separator location
- Tapping felt at idle
- Unreasonable increase in fuel consumption
- Ignition interruptions
- Unstable engine operation
- Unmetered air entering the engine
Why Choose This Replacement
- Targets exact OEM search intent for 036103464AD, 036103464AH and 036103464AK
- Supports repair of the existing oil separator / PCV unit
- Suitable for selected Audi, Seat, Skoda and VW 1.4L applications
- Cost-effective alternative to replacing the full oil separator assembly
- Helps restore stable engine operation and proper ventilation function
Important Before Ordering
Please compare your original oil separator number with 036103464AD, 036103464AH or 036103464AK before ordering. If your application uses 036103464AJ or 036103464AB, check compatibility carefully. If your original number is 036103464AC, this product should not be selected because the page states that 036103464AC uses another 86 mm membrane.
FAQ
What does 036103464AD fit?
036103464AD is used in selected VAG 1.4L applications across Audi, Seat, Skoda and Volkswagen brands.
Are 036103464AH and 036103464AK the same type of part as 036103464AD?
Yes. This page presents 036103464AD, 036103464AH and 036103464AK as the main OEM references for the same oil separator membrane fitment group.
Are 036103464AJ and 036103464AB related reference numbers?
Yes. The product page lists 036103464AJ and 036103464AB as related oil separator numbers for this membrane.
Can I use this membrane for 036103464AC?
No. The product page specifically notes that 036103464AC uses a different 86 mm membrane, so it should not be treated as the same fitment for this product.
What symptoms can indicate a failed oil separator membrane?
Typical symptoms listed on the page include whistling and suction at the oil separator, tapping at idle, increased fuel consumption, ignition interruptions and unstable engine operation.
How should the engine be handled after replacing the membrane?
The product page recommends letting the engine run for about 5 minutes after replacement, then switching the ignition off and starting the engine again so the system can return to normal operation.
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