For professional mechanics and Audi enthusiasts, servicing the EA839 2.9T and 3.0T TFSI V6 engines (found in the Audi S4, S5, SQ5, RS4, and Q7) requires more than just standard wrenches. Due to the complex rear-chain design and the floating camshaft adjusters, a high-precision Engine Timing Camshaft Locking Tool Kit is non-negotiable.
Our professional-grade kit is engineered to meet the rigorous demands of VAG timing chain replacement and camshaft alignment, ensuring your engine performance remains factory-perfect.

One of the most frequent challenges during an EA839 teardown is the compatibility with the camshaft adjusters. Our tool kit is designed with a deep understanding of the 06M 109 088 H and the updated 06M 109 088 K versions.
Pro Tip: The EA839 adjusters feature a "floating" design without a woodruff key. To secure the 22mm center section of the newer K-version adjusters, our kit utilizes a high-torque multi-tooth adapter logic. By seating the adapter into the internal splines, you can safely apply the required 80 Nm + 90° torque without slipping or damaging the sensitive VVT components.
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This comprehensive set includes everything needed to lock the engine at Top Dead Center (TDC) and secure the valvetrain:
Camshaft Locking Plates (T40331/1 /2): Heavy-duty steel plates to fix the camshafts at the rear of the cylinder head.
Crankshaft Locking Pin: Precision-machined to lock the crank at TDC through the block port.
Multi-tooth Adjuster Adapters: Specialized sockets designed to bite into the adjuster internals for safe tightening.
High-Leverage Wrench: Ergonomically designed to work in the tight engine bays of the B9 and C8 platforms.
| Tool Component | Function | OEM Ref |
| Camshaft Locking Plates | Secures camshafts at the rear of the cylinder head | T40331/1 & /2 |
| Crankshaft Locking Pin | Locks the crank at Top Dead Center (TDC) | T40331 |
| Multi-tooth Adapters | Sockets for safe adjuster tightening | Proprietary |
| High-Leverage Wrench | Optimized for tight B9/C8 engine bays | Custom |
Industrial-Grade Durability: Made from forged carbon steel with a black-oxide finish to prevent rust and withstand high shop usage.
Verified Fitment: Specifically tested on VW/Audi 3.0L TFSI (EA839) engines. Whether you are dealing with a chain rattle fix or a complete engine rebuild, this tool ensures 100% timing accuracy.
Future-Proof Engineering: We monitor OE part updates (like the shift from H to K suffixes) to ensure our adapters provide the most secure grip in the industry.
When performing a timing service on a 2019+ Audi Q8 or S5, precision is the difference between a smooth-running engine and catastrophic valve-to-piston contact. By using our T40331 equivalent kit, you eliminate the guesswork.
Ready to upgrade your shop's capabilities?Equip yourself with the tool that matches the engineering excellence of the Audi V6 Turbo.
[Shop Now: Audi EA839 Professional Timing Tool Kit]