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Brand: C.OEFT
OE numbers: 06B109088D
Product Name: camshaft adjuster
Compatible model: 06B109088A 06B109088C
Product status: New
Number of teeth on the product: 22
Product weight: 0.94 KG
Packaging size: 11.5*11.5*7CM
Product packaging: Neutral Packaging
Car Series: For Audi A4 2.0
Car Type: Gemany
It seamlessly integrates with the vehicle’s multiple driving modes:
In Sport Mode: It optimizes valve timing for high-speed performance, enabling more aggressive power output to meet the driver’s need for dynamic acceleration.
In Comfort Mode: It adjusts timing to prioritize smoothness, maintaining stable idling and gentle power delivery for a refined riding experience.
This multi-mode adaptability is rarely seen in similar products, which typically only support a single, fixed timing adjustment logic.
2. Reducing Turbo Lag
For high-power versions of the 2.0T engine, this actuator is installed on the exhaust camshaft. It actively addresses the "turbo lag" common in turbocharged engines by optimizing exhaust gas flow—accelerating the spool-up of the turbocharger. This results in more immediate power response during acceleration, outperforming products that do not include specific optimizations for turbo lag.
3. Optimizing the Miller Cycle
For low-power versions of the 2.0T engine, the actuator collaborates to implement an enhanced Miller combustion cycle. In simple terms, this achieves "variable compression ratio-like" effects: under low-load conditions, it further improves fuel economy and engine efficiency by adjusting valve timing to optimize the combustion process. This is a unique technical application exclusive to Audi’s engine systems and is not commonly found in products from other brands or models.
It adopts a vane-type control device. Unlike older-generation engine VVT systems that rely on timing chain tensioners for adjustment, this actuator offers a wider adjustment range and higher precision. It enables continuous adjustment of intake valve timing, allowing the engine to maintain optimal performance across a broader range of operating conditions—an advantage not matched by products with outdated adjustment architectures.
2. Dual VVT System Advantage
The Audi 2.0T engine is equipped with a dual VVT system (independent intake and exhaust VVT). This actuator works in tandem with the system to precisely control the opening and closing timings of intake and exhaust valves separately, ensuring coordinated intake and exhaust processes. This is a key differentiator from many products that only support single VVT (either intake or exhaust-only adjustment), as it enables more efficient optimization of the engine’s overall operating cycle.
3. Rapid Response via Hydraulic Drive
Powered by engine oil pressure to adjust the camshaft, this actuator delivers faster response compared to products using mechanical or other drive methods. It can adjust valve timing in an extremely short time based on real-time engine conditions, allowing the engine to quickly adapt to different driving demands (e.g., sudden acceleration or deceleration).
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