DIY Intake Valve & Manifold Carbon Cleaning | Audi TFSI Guide

Cleaning intake valves and the manifold is essential for maintaining performance in GDI (Gasoline Direct Injection) engines like the Audi 2.0 TFSI. Unlike port-injected engines, fuel bypasses the intake valves, allowing carbon deposits to build up over time. This guide covers a DIY cleaning method using zip ties on an Audi A6 C6 2.0 TFSI with nearly 150,000 km, where the valves had never been cleaned.

🛠️ Why Intake Valve Cleaning is Crucial:

• Restores engine performance and fuel economy
• Prevents rough idling, misfires, and engine knocking
• Essential maintenance for all TFSI/TSI direct injection engines

🔧 Step-by-Step Overview:

1. Remove the intake manifold to access the valves.
2. Use this opportunity to inspect and clean the fuel injectors.
3. Proceed with carbon cleaning using tools like zip ties and brushes, or walnut blasting if available.

This low-cost DIY solution helps restore power and ensures your Audi TFSI engine runs smoothly.

👉 Subscribe for more hands-on Audi A6 C6 maintenance tips and DIY engine care projects.