►One major drawback to all modernday directinjected cars is that carbon deposits build up over time and need to be removed at regular intervals. Carbon buildup is due to the fact that fuel is not injected over the intake valves like in a traditional portinjected car, but instead injected directly into the combustion chamber.

In this DIY, Cory Calvin shows us how to clean the intake valves of the detrimental carbon buildup on a 2013 Audi S4 with the 3.0t engine. This DIY is generally the same for other B8 model S4, SQ5, S5, or any Audi with the 3.0t Engine.

Read this DIY on our blog: https://blog.fcpeuro.com/howtowalnu...

If you'd like to learn more about directinject be sure to check out our deep dive here:    • How Direct Injection Works (Carbon Bu...  

Audi B8/B8.5 S4 3.0t Water pump and Thermostat Replacement DIY(S4, S5, SQ5, and More!)
   • Audi B8/B8.5 S4  3.0T  Water pump a...  

Read more Audi DIYs, guides, and features on our blog: https://blog.fcpeuro.com/tag/audi

Shop Tools Used In This Video:
Audi VW Direct Injection Head Port Cleaning Tool 034Motorsport
https://www.fcpeuro.com/products/audi...

Walnut Shells Abrasive Blast Media (10LBS) 40112
https://www.fcpeuro.com/products/waln...

Abrasive Pressure Blaster 98030
https://www.fcpeuro.com/products/abra...

WiFi Borescope CalVan CV84
https://www.fcpeuro.com/products/wifi...

Audi VW Crankshaft Socket CTA 1412
https://www.fcpeuro.com/products/audi...

Fluid Extractor CTA 6510
https://www.fcpeuro.com/products/flui...

Valve Clean Liqui Moly LM2001
https://www.fcpeuro.com/products/vent...

Audi VW PCV Valve Hose Genuine Audi VW 06E103213
https://www.fcpeuro.com/products/audi...

Audi VW Coolant/Antifreeze Genuine VW GA137741GDSP
https://www.fcpeuro.com/products/audi...

Audi VW Fuel Injection Nozzle ORing Kit Genuine VW Audi 06E998907E
https://www.fcpeuro.com/products/audi...

Audi VW Intake Manifold Gasket Elring 079129717D
https://www.fcpeuro.com/products/vwi...

Fits These Cars:
Audi Q7
20112015 Audi Q7

Audi A7 Quattro
20122015 Audi A7 Quattro

Audi A6 Quattro
20122015 Audi A6 Quattro

Audi A8 Quattro
20132014 Audi A8 Quattro

Audi S4
20132016 Audi S4

Audi S5
20132017 Audi S5

Audi Q5
20132017 Audi Q5

Audi SQ5
20142017 Audi SQ5

00:00 The Parts You Need for this Job
01:15 What Tools You Need to Walnut Blast Your Audi
02:00 How To Remove The Intake Manifold
13:07 Remove Dividers
13:25 Clean Cover and Prepare Surfaces/Ports
13:34 How to Turn over the Engine and Close Valves
14:18 Use Pick to Clean of big chunks of Carbon Deposits
14:28 Walnut Blasting the Intake Ports and Valves
17:14 Clean off the Port Dividers
18:18 Replace Gaskets & Reinstall Everything we took Off
29:38 Refill The Cooling System
33:45 Start Engine and Ensure System is running Correctly
34:35 We Did It! Clean Intake Valves

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