Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)
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Genuine Part· Audi

Audi S6, S7, S8, RS6, RS7 & A8 Oil Separator PCV Valve 079103542B (2012-2018)

$500.00
$375.00 In Stock Pre-Order Sold out
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ConditionNew Genuine
Model Audi S6, S7, S8, RS6, RS7 & A8 4.0T Quattro.
Country of MfrGermany
Year2012-2018
TypeOil Separator
Mfr Part Number079103542B
Interchange PN079103542E, 079103542B, 079103542D
  • Description
  • fitment
  • Shipping
  • Reviews

OEM-spec Engine Oil Separator (PCV) for Audi S6, S7, S8, RS6, RS7 & A8 4.0T Quattro. Part # 079103542E, 079103542B, 079103542D. Protect your turbos and restore engine vacuum.

 

What’s Included

  • 1x Engine Oil Separator / PCV Valve Assembly

 

Part Numbers & Interchange

Detail Number(s)
Primary OEM Part Number 079103542B, 079-103-542-B
Superseded Part Numbers 079103542A, 079103542 

 

Brand Model Year Range
Audi A6 C7 (4G2, 4GC) S6 quattro 2012 – 2018
Audi A6 C7 Avant (4G5, 4GD) RS6 / RS6 Performance quattro 2013 – 2018
Audi A6 C7 Avant (4G5, 4GD) S6 quattro 2012 – 2018
Audi A7 Sportback (4GA, 4GF) RS7 / RS7 Performance quattro 2013 – 2018
Audi A7 Sportback (4GA, 4GF) S7 quattro 2012 – 2018
Audi A8 D4 (4H2, 4H8, 4HC, 4HL) 4.0 TFSI quattro 2012 – 2015
Audi A8 D4 (4H2, 4H8, 4HC, 4HL) S8 / S8 Plus quattro 2012 – 2018

At Europarts360, we are committed to delivering premium automotive parts to you, wherever you are. We ship worldwide from our strategic warehouses in:

United States  United Arab Emirates United Kingdom Hong Kong

Order Processing

Standard orders
1–7 days
Business days to dispatch
Custom & special orders
Varies
Based on sourcing & availability

For custom and special orders, we will contact you directly with an estimated timeframe before dispatch.

Estimated Delivery Times

All the orders (WORLDWIDE)
2–5 days
Business days after dispatch
Custom & special orders
Varies
Based on sourcing & availability

International delivery times are estimates and may be affected by customs clearance procedures in the destination country.

Shipping Rates

United Arab Emirates  Free Shipping


International Countries (Except UAE)
For all other destinations, rates are calculated by total order weight (1 kg = 2.205 lb):

Order Weight Rate (USD)
0 – 5 kg (0 – 11 lb) $60.00
5 – 10 kg (11 – 22 lb) $85.00
10 – 15 kg (22 – 33 lb) $100.00
15 – 20 kg (33 – 44 lb) $135.00
20 – 30 kg (44 – 66 lb) $175.00
30 – 40 kg (66 – 88 lb) $250.00
40 kg and above (88 lb+) $325.00

Planning a large purchase? Contact us before placing your order to ask about bulk shipping discounts.

Order Tracking

Once your order ships, you will receive a confirmation email with a tracking number. You can monitor your shipment through your Europarts360 account or directly on the courier's website (DHL, FedEx, UPS, etc.).

Customs, Duties & Taxes

  • For international orders, the recipient is responsible for all customs duties, taxes, and import fees levied by the destination country.
  • Europarts360 is not liable for delays caused by customs processing or incorrect shipping information provided at checkout.
  • Please double-check your delivery details before placing your order to ensure a smooth delivery.

Need Assistance?

Our customer support team is here to help.

Note: If you have any inquiries about the fitment of the part, please send us the VIN of the vehicle and we will verify the fitment for you.
Handling Time: 1–7 business days for order processing before dispatch.

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Frequently Asked Questions

What are the symptoms of a failed 4.0T oil separator?
Common signs include a loud, high-pitched whistling or "squealing" sound at idle (which often disappears when you pull the oil dipstick), a "Rough Idle" fault code, increased oil consumption, and blue smoke from the exhaust.
Why is this part considered "critical" for turbo health?
When the internal diaphragm in the separator fails, it creates improper pressure within the engine block. This can prevent oil from draining away from the turbochargers correctly, eventually leading to catastrophic turbo failure.
Is this the updated version of the part?
Yes. Part number 079103542B is the latest superseded revision from Audi, designed to be more durable and reliable than the earlier "A" versions found in 2013–2015 models.
Where is this part located on the engine?
The oil separator is located deep in the "V" of the engine, underneath the charge air coolers and turbochargers. Due to its location, many owners replace the oil screen and check valves at the same time.