Audi A7 4G 3.0 TDI V6 CGQB Engine Inlet Intake Camshaft Cyl 4-6 059109021ET

Audi A7 4G 3.0 TDI V6 CGQB Engine Inlet Intake Camshaft Cyl 4-6 is an original component from the Camshafts group, designed for precise operation in the Audi 3.0 TDI power unit. This used OEM component ensures proper cooperation with the factory timing system, maintaining correct intake valve synchronization for cylinders 4–6 and stable engine performance.

Specifications and technical data

• SKU: 059109021ET
• Mark: Audi
• Condition: Used
• OEM Part Number: 059109021ET
• Substitutable numbers: 059109021ET, 059 109 021 ET
• Category: Camshafts

Purpose and function in the 3.0 TDI engine

The presented intake camshaft is responsible for controlling the opening of the intake valves in the middle section of the V6 engine, i.e., in the range of cylinders 4–6. A correctly selected element from this group:

• maintains proper timing phases on the intake side,
• supports uniform cylinder filling with the air-fuel mixture,
• reduces vibrations and uneven operation of the power unit,
• allows maintaining the factory parameters of the 3.0 TDI CGQB engine.

By maintaining the original cam geometry and appropriate material hardness, the camshaft works with factory tappets and the cylinder head, which promotes the durability of the entire system.

Benefits of using an original Audi camshaft

Using an original camshaft in an Audi A7 4G 3.0 TDI brings measurable operational benefits. An element from the same design family as the factory-fitted one:

• ensures compatibility with factory tolerances of the cylinder head and timing components,
• minimizes the risk of accelerated wear of tappets and bearings,
• facilitates diagnostics – timing operation parameters correspond to the values specified by the manufacturer,
• promotes the maintenance of stable performance and smooth operation of the diesel engine.

Choosing a used, original component is often a reasonable compromise between repair costs and maintaining high-quality parts.

Installation characteristics and part selection

The intake camshaft for cylinders 4–6 is a component that requires precise installation in the engine cylinder head. When replacing it, it is crucial to:

• maintain the correct timing setting relative to the crankshaft,
• check the condition of cooperating elements (tappets, bearings, timing gears),
• select parts based on the OEM number and interchangeable numbers to ensure full compatibility with the specific CGQB engine version.

Thanks to the manufacturer's markings and compliance with service documentation, selecting this camshaft for a specific Audi A7 4G configuration is simple and reduces the risk of ordering errors.

Used condition and operational aspects

The offered camshaft comes from the used parts category, which allows for a significant reduction in repair costs compared to a brand-new component. With this type of component, it is particularly important to:

• check the cam working surfaces for excessive wear,
• verify bearing seats and journals for scratches,
• assess the general condition of the element before installation in the engine.

A conscious choice of a used camshaft allows you to maintain the efficiency of the power unit within a rational service budget, while retaining the original design specifications.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as exhaust camshafts, intermediate shafts, or additional timing control elements, check the available parts in the Audi Camshafts category.

To better plan your repair budget and take a conscious approach to choosing components from the secondary market, it is worth reading our expert guide on the cost-effectiveness of purchasing used powertrain components: Why it is worth buying used gearboxes and engines – facts instead of myths.