Audi S4 B8 S5 8T 3.0 TFSI CRE Exhaust Camshaft Adjuster Unit 06E109084N

The Audi S4 B8 S5 8T 3.0 TFSI CRE Exhaust Camshaft Adjuster is an original timing system component from the tensioners and rollers group, designed for precise control of exhaust camshaft timing in 3.0 TFSI engines. This used OEM part ensures factory geometry, proper fitment, and maintains the engine's performance characteristics according to Audi specifications.

Specifications and technical data

• SKU: 06E109084N
• Mark: Audi
• Condition: Used
• OEM Part Number: 06E109084N
• Substitutable numbers: 06E109084N, 06E 109 084 N
• Category: Tensioners & Pulleys

Purpose and Function of the Exhaust Camshaft Adjuster

The camshaft adjuster (variator) for the exhaust side is responsible for dynamically changing the position of the exhaust camshaft, allowing for control of exhaust valve opening times based on engine load and speed. In the 3.0 TFSI CRE engine, this is crucial for:

• stable idle operation and reduction of engine vibrations,
• proper cylinder filling and scavenging, which impacts performance and flexibility,
• maintaining compliance with emission standards by optimizing exhaust gas flow,
• reducing fuel consumption under typical driving conditions.

A functional exhaust variator is particularly important in turbocharged engines, where precise camshaft timing translates to predictable throttle response and smooth operation.

Construction and Fitment within the Tensioners and Rollers System

This presented component belongs to the tensioners and rollers category, working in conjunction with chains and other timing components in the 3.0 TFSI engine. The OEM construction ensures:

• factory fitment to the cylinder head and camshaft in Audi S4 B8 and S5 8T models with the CRE engine,
• compatibility with the original lubrication and oil control system responsible for phase adjustment,
• operation with factory tensioners and guides without requiring modifications.

This allows for predictable installation for the mechanic, and the entire timing system maintains the parameters set by the manufacturer.

Benefits of Using an Original Audi Variator

Using an original exhaust camshaft adjuster in the Audi S4 B8 / S5 8T 3.0 TFSI CRE allows for the restoration of correct timing system operation when symptoms such as chain noise, engine control unit errors, or performance loss occur. Key benefits include:

• maintaining factory torque characteristics across the entire RPM range,
• improving engine smoothness during cold starts and at operating temperatures,
• reducing the risk of incorrect timing synchronization, which can lead to costly failures,
• compatibility with the engine control unit software, which is calibrated for the original variator.

Choosing a used OEM part is often a sensible compromise between repair cost and maintaining high quality and compatibility with the factory system.

Condition, Verification, and Installation Recommendations

The offered Audi exhaust camshaft adjuster is a used part from disassembly. Before being offered for sale, components of this type are routinely verified for:

• absence of visible mechanical damage on the housing and mating surfaces,
• condition of the teeth engaging with the chain and mounting seats,
• smooth operation of the phase adjustment mechanism within its designed range.

During installation, it is recommended to use new mounting bolts, adhere to tightening torques specified in the service documentation, and inspect other components from the tensioners and rollers group to ensure even wear across the entire system.

How to Care for Used Timing Components

The lifespan of a used exhaust variator largely depends on the quality of engine oil and the regularity of its replacement. For drivers who want to better understand when it's worthwhile to opt for disassembled components, a practical guide is available: When is it worth replacing an alternator with a used one and how to approach buying second-hand parts. In the context of operating used components, it is also worth familiarizing yourself with the material describing maintenance methods: how to extend the lifespan of used car parts, which will help you better care for your timing system components.

If you are looking for other Audi tensioners and rollers for your vehicle, check out the Audi tensioners and rollers available in our assortment to select a complete service solution tailored to your specific model.