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

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

Estimated delivery Calculating…

Can't find the part? Call us Speak to our parts specialist— UAE & USA lines

UAE+971 568 908 800 US+1 315 210 4844

100% Genuine & OEM

Fast Global Dispatch

US · UK · UAE · HK Warehouses

Secure Checkout

ConditionNew Genuine

Model Audi S6, S7, S8, RS6, RS7 & A8 4.0T Quattro.

Country of MfrGermany

Year2012-2018

Warranty6 Months

TypeOil Separator

Mfr Part Number079103542B

Superseded PN079103542E, 079103542B, 079103542D

Interchange PN079103542E, 079103542B, 079103542D

Description
fitment
Shipping
Reviews

Audi S6 / S7 / S8 / RS6 / RS7 / A8 Oil Separator PCV Valve — OEM 079103542B

Genuine OEM oil separator and PCV valve for Audi's high-performance 4.0 TFSI twin-turbo V8 family. Factory-original crankcase ventilation unit separating oil mist from blow-by gases before recirculation — maintaining intake system cleanliness, emissions compliance, and crankcase pressure regulation across Audi's performance and flagship sedan lineup.

Fitment (Verified)

Audi S6 4.0 TFSI (2012–2018)
Audi S7 4.0 TFSI (2012–2018)
Audi S8 4.0 TFSI (2012–2018)
Audi RS6 4.0 TFSI (2013–2018)
Audi RS7 4.0 TFSI (2013–2018)
Audi A8 4.0 TFSI (2012–2018)

⚠️ VIN confirmation required. Confirm engine code and build date against your VIN before ordering.

Why OEM
PCV valve failure on Audi's 4.0 TFSI is a known high-consequence failure mode — a blocked or failed separator causes crankcase overpressure, accelerated oil consumption, intake carbon buildup, and turbocharger seal damage. Aftermarket units frequently under-specify diaphragm material for the sustained thermal and pressure cycling of the twin-turbo V8 environment.

Installation Note
Inspect associated breather hoses and intake ducting for oil contamination before fitting. Clear crankcase pressure fault codes and verify oil consumption rate post-installation.

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.

Email info@europarts360.com

Contact +971 568 908 800

Call (USA) +1 315 210 4844

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.

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.