BMW 5 6 E60 M5 E63 M6 6-10 VANOS Valve Variable Timing Adjustment Unit 7841074

BMW 5 6 E60 M5 E63 M6 6-10 VANOS Valve Variable Timing Adjustment Unit is a specialized component of the variable valve timing control system in BMW M-series engines, used in M5 and M6 models of the E60, E61, E63, and E64 generations after the facelift. This solution allows for precise control of camshaft operation, which translates into stable power characteristics and proper engine response to load. Choosing an original actuator from the BMW group ensures consistency with the factory engine design and predictable behavior of the VANOS system.

Specifications and technical data

• SKU: 7841074
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7838395
• Substitutable numbers: 11367841073, 7841073, 11367836240, 7836240, 11367839844, 7839844, BG
• Category: Other Engine Parts

Purpose and function of the VANOS actuator

The VANOS actuator in BMW M5 and M6 E60/E61/E63/E64 generation models is responsible for the dynamic adjustment of camshaft positions depending on engine speed and load. A properly functioning component:

• stabilizes engine operation across the entire rev range,
• supports the flexibility and dynamics characteristic of the M series,
• reduces the risk of rough idling and power loss,
• ensures correct cooperation with the factory engine control unit.

By maintaining factory valve timing control parameters, the VANOS actuator allows for the preservation of proper performance and refinement of the V10 engine in the M5/M6 without the need for software modifications.

Compatibility with BMW M5 and M6 models

The presented component is intended for use in BMW 5 and 6 series cars of the E60, E61, E63, and E64 generations in M5 and M6 versions after the facelift. This means it is matched to the specific design of the engines used in these sports variants, both in terms of mechanics and electronics.

For correct part selection, it is crucial to compare vehicle data with the information in the product technical specification. Using an actuator that complies with BMW's factory requirements minimizes the risk of ECU errors, incorrect valve timing settings, and diagnostic issues.

Product characteristics and installation benefits

The offered actuator comes from the BMW group, which means it retains the original geometry, mounting points, and connectors. As a result, installation proceeds in a manner similar to the factory process, without the need for installation modifications or additional adapters.

• Reproduction of the factory VANOS system operation.
• Compatibility with standard timing and engine accessory components.
• Ability to use factory service and diagnostic procedures.
• Consistency with the engine control software intended for the M5/M6.

A set configured in this way allows for maintaining the predictable behavior of the engine, which is particularly important in high-performance M-series engines that often operate under high load.

Condition and service application

The item is offered in used condition, making it an attractive solution for repairs where reasonable cost is important while maintaining the original design. This type of part will work particularly well in situations where the existing actuator shows signs of wear, such as ECU errors, problems with starting on a warm engine, or noticeable power drops in specific rev ranges.

Replacing the VANOS actuator with a functional unit allows for restoring the correct operation of the variable valve timing system, and thus bringing the engine's performance and characteristics closer to the values intended by the manufacturer. This is a practical solution for users who want to keep their BMW M5 or M6 in good technical condition without giving up original design solutions.

System expansion and additional information

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

For a comparison of technical solutions used in sports versions of other brands, including differences in engine, brake, and chassis design, it is worth reading the article discussing RS models – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.