BMW 1 3 Series F20 F21 F30 F31 LCI Valve Control Solenoid SOLV 7639993

BMW 1 3 Series F20 F21 F30 F31 LCI Valve Control Solenoid is an original oil system component designed for use in popular BMW 1 and 3 Series models. Thanks to its factory specifications, it ensures proper control of the working medium flow and stable operation of the engine unit. This used OEM component is a sensible choice for maintenance when you want to ensure compatibility with BMW factory solutions.

Specifications and technical data

• SKU: 7639993
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7639993
• Substitutable numbers: 11417639993, 7639993
• Category: Other Engine Parts

Purpose and function of the solenoid valve

The presented solenoid valve has been designed specifically for BMW F20, F21, F30, and F31 platforms, where it is responsible for precise control of one of the engine system circuits. A properly functioning valve contributes to:

• stability of engine operating parameters under various load conditions,
• correct response to pressure and temperature changes in the system,
• maintaining compliance with the factory control strategy implemented by BMW.

By maintaining the original design, the solenoid valve works with the vehicle's factory electronics, which reduces the risk of diagnostic errors and adaptation issues.

Benefits of using an original BMW solenoid valve

Using an original solenoid valve in F20, F21, F30, and F31 models allows for maintaining the consistency of the entire powertrain. In practice, this means:

• secure fitment to mounting sockets and the existing electrical harness,
• maintaining operating parameters in accordance with the manufacturer's specifications,
• easier diagnostics during future service inspections.

The used OEM element is particularly attractive in situations where cost-to-quality ratio matters, and you want to avoid random aftermarket replacements with unverified parameters.

Condition and installation aspects

The solenoid valve comes from disassembly and is offered as a tested, used component. This type of part is most often installed during:

• routine repairs following errors related to the operation of the oil or control system,
• preventive replacement of engine consumables,
• restoring full engine efficiency after a major overhaul.

Thanks to the original design, installation is generally straightforward for an experienced mechanic – the solenoid valve is installed in place of the factory element without the need for any wiring modifications.

Part selection and compatibility

The solenoid valve has a dedicated OEM part number and associated interchangeable numbers, which facilitates its identification in BMW service catalogs. When selecting a part for a specific vehicle, it is worth verifying:

• part number compatibility with the vehicle's technical documentation,
• the engine generation used in the specific F20, F21, F30, or F31 model,
• any modifications made during the vehicle's service life.

Such an approach minimizes the risk of purchasing an incorrect component and speeds up the service process.

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 additional solenoid valves, sensors, or control modules, check out the available parts in the Other BMW category.

Technical support and service knowledge

When working with powertrains and advanced engine versions, it is worth using reliable sources of knowledge. For a comparison of design solutions used in various brands and sports versions, you can read an article discussing the differences in the construction of engines and equipment in high-performance cars: Audi RS vs other models – what is hidden under the hood and chassis?. This provides good background information that helps to better understand the role of precision control elements in modern engines.