BMW X3 1 3 Series E81 E83 E87 E90 E91 Adjustment Unit Outlet Camshaft 1707315

BMW X3 1 3 Series E81 E83 E87 E90 E91 Adjustment Unit Outlet Camshaft is an original variable valve timing system component designed for the exhaust side of BMW E87 and E90 series engines. Thanks to its precise construction and factory fitment, it ensures stable operation of the VANOS mechanism, which translates into correct valve timing control and predictable engine characteristics. This is a solution for users who are looking for a proven OEM component instead of replacements of uncertain origin.

Specifications and technical data

• SKU: 1707315
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1707315
• Substitutable numbers: 11361707315, 1707315, EM
• Category: Other Engine Parts

Purpose and function of the VANOS camshaft sprocket

The VANOS camshaft sprocket on the exhaust side is responsible for the precise adjustment of the camshaft depending on engine load and rotational speed. In practice, this means:

• smoother torque delivery across the entire rev range,
• stable engine operation at idle,
• better throttle response in typical road conditions,
• maintenance of factory valve timing system performance parameters.

A properly selected and functional VANOS camshaft sprocket is crucial for maintaining engine operation in accordance with the ECU map and reducing unwanted vibrations and noise in the timing area.

Why it is worth using an original BMW VANOS camshaft sprocket

In the case of timing system components, manufacturing accuracy and compliance with factory specifications are particularly important. The original BMW VANOS camshaft sprocket ensures:

• secure fitment to the camshaft and other mechanism components,
• preservation of the correct geometry of teeth and oil channels,
• compatibility with the factory VANOS control in E87 and E90 models,
• reduction of the risk of ECU errors related to incorrect valve timing operation.

As a result, installing such a component allows you to maintain engine performance parameters at the level intended by the manufacturer, which is important for both engine durability and driving comfort.

Characteristics of the used component

The presented exhaust VANOS camshaft sprocket is an aftermarket component, which allows for an economical repair of the timing system while maintaining original BMW specifications. This type of part is particularly attractive in situations where:

• it is necessary to replace a damaged or worn VANOS sprocket,
• errors related to the camshaft position on the exhaust side appear,
• you are planning a timing system service and want to restore the correct operation of the variable valve timing system.

Choosing a used OEM component allows you to maintain factory-quality fitment and avoid problems typical of cheaper replacements with inconsistent manufacturing quality.

Professional installation and diagnostics

Due to the importance of the VANOS camshaft sprocket for the operation of the entire timing system, installation in a specialized workshop that has the appropriate timing locking tools and the ability to verify engine performance parameters after replacement is recommended. A properly conducted procedure usually includes:

• checking the mechanical condition of the camshafts and the chain,
• verifying the correct alignment of timing marks,
• adaptation or verification of the VANOS system operation in the engine control unit,
• a road test to confirm stable engine operation.

This approach minimizes the risk of repeated interference with the timing system and allows you to fully utilize the potential of the installed VANOS camshaft sprocket.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as timing sprockets, phase control elements, or additional powertrain components, check the available parts in the Other BMW category.

Technical knowledge and project development

When working on the powertrain, it is worth expanding your knowledge about solutions used in high-end and sports cars. To compare the characteristics of different designs, including advanced high-power units, material discussing the differences in the construction of engines, braking systems, and chassis may be helpful – you can find them in the article Audi RS vs other models – what is hidden under the hood and chassis?, which allows for a better understanding of the relationships between engine control, timing, and vehicle performance.