BMW F20 F21 F30 F31 LCI F32 B38 Petrol Turbocharger Turbo 5A14817

The BMW F20 F21 F30 F31 LCI F32 B38 Turbocharger is an original used turbocharger from the Turbochargers & Parts category, designed for BMW F generation petrol engines with the B38 unit. It's a solution for drivers looking for a factory component with a proven design that restores proper boost and stable engine performance.

Specifications and technical data

• SKU: 5A14817
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A14817
• Substitutable numbers: 5A14817, 11655A14817
• Fuel type: Petrol
• Category: Turbos & Parts

Purpose and compatibility

The turbocharger is designed to work with the three-cylinder B38 petrol engine used in the BMW 1 Series F20/F21, 3 Series F30/F31 LCI and 4 Series F32 models. The OEM design ensures proper fit with the exhaust, intake, cooling and lubrication systems in these powertrains.

The factory specification ensures compliance with the engine control unit's operating parameters, reducing the risk of diagnostic errors and post-installation adaptation problems. This is particularly important in modern petrol engines with direct injection and precise boost pressure control.

Construction and operating characteristics

As an OEM component, the turbocharger utilizes a proven design adapted to the high exhaust gas temperatures and variable loads typical of gasoline engines. These solutions enable:

• stable build-up of boost pressure across the full rev range,
• smooth acceleration without noticeable turbo lag,
• maintaining appropriate dynamics while controlling fuel consumption.

Precise matching of the rotor, housing and control elements translates into a predictable response to gas and correct cooperation with the engine control system, including pressure and temperature sensors.

Condition, use and benefits of installation

The turbocharger offered is a used part, which allows for lower repair costs compared to a new OEM component while maintaining the original design and geometry. This is a good solution in situations where:

• the existing turbocharger has been mechanically damaged or overheated,
• there is a significant drop in power and a problem with building boost pressure,
• there are disturbing sounds coming from the turbine area or excessive exhaust smoke.

Installing an original turbocharger from the same engine family simplifies the mechanic's work, reduces the need for modifications, and allows the engine to maintain its factory operating parameters. This is especially important in BMW vehicles, where precise control and component compatibility directly impact engine durability.

Operating a petrol engine with a turbocharger

Supercharged petrol engines require proper maintenance to ensure the turbocharger operates in stable conditions. After installation, it's worth paying attention to:

• regular oil changes according to the manufacturer's recommended specifications,
• checking the tightness of the intake and exhaust systems,
• proper venting and filling of the associated systems (lubrication, cooling),
• avoiding sudden engine shutdown after intensive driving.

This approach helps extend the life of the turbocharger and maintain stable performance of the B38 unit in daily operation.

Other BMW Turbochargers and Technical Knowledge

If you are looking for other turbochargers for BMW, check out our dedicated category where you will find a wide selection of factory solutions: turbochargers for BMW .

When planning a drivetrain repair, it's also worth understanding the specifics of using used components. For a detailed discussion of the profitability of purchasing second-hand components, such as transmissions, see the article: Used Transmission – When Is It Worth It and What You Need to Remember . This will allow you to better plan comprehensive drivetrain maintenance for your BMW.