BMW F20 F21 F22 F23 F30 F31 DSC Hydro Braking Unit Pump 6858953

The BMW F20 F21 F22 F23 F30 F31 ABS Brake Master Cylinder DSC 6858953 is a genuine, used module from the Other ABS Parts group, designed for braking systems with the DSC electronic stability control system in select BMW models. This component comes from an example with engine code N13B16A and is suitable for users looking for a factory solution instead of aftermarket parts of unknown origin.

Specifications and technical data

• SKU: 6891615-1
• Mark: BMW
• Condition: Used
• OEM Part Number: 6891615
• Substitutable numbers: 34516891615, 6891615, 6858953, 6861376, 34516887513, 6887513, 34516887744, 6887744
• Category: ABS Pumps & Components

Purpose and function in the BMW braking system

This ABS DSC brake pump serves as the central hydraulic-electronic component responsible for regulating pressure in the brake circuits and cooperating with the stability control system. In BMW F20, F21, F22, F23, F30, and F31 series vehicles with the N13B16A engine, it is responsible for:

• precise control of the braking pressure in each wheel during ABS intervention,
• cooperation with the DSC system for trajectory correction and traction control,
• integration with vehicle electronics in terms of diagnostics and error logging.

Thanks to the use of the original module, full compatibility with the factory control software and operating parameters of the braking system is maintained.

Benefits of using the original BMW DSC ABS pump

Choosing a used, original ABS DSC module for your BMW F Series helps maintain the integrity of your entire braking system. In practice, this means:

• factory hydraulic and electrical adjustment for installation in models F20, F21, F22, F23, F30, F31 with N13B16A unit,
• maintaining the operating parameters specified by the vehicle manufacturer,
• easier diagnostics using standard BMW service tools,
• reducing the risk of communication problems in the CAN bus and errors in driving assistance systems.

A used OEM component is a reasonable compromise between repair cost and maintaining the high quality of the ABS and DSC system.

Condition, origin and assembly aspects

The ABS DSC brake pump is in used condition, from a vehicle with 95 miles. This mileage means relatively little wear and tear compared to many other aftermarket components, which translates into the module's maintained operational efficiency.

When installing in a BMW F20, F21, F22, F23, F30 or F31 with the N13B16A engine, it is worth paying attention to:

• proper bleeding of the braking system after installation,
• adaptation and possible coding of the module in accordance with BMW service procedures,
• checking the tightness of the brake lines after connecting to the pump body.

Professional installation and correct bleeding of the system are crucial for maintaining stable braking pressure and the correct operation of the ABS and DSC systems.

Application in BMW service and diagnostics

This type of ABS DSC module is particularly useful in situations where the vehicle has:

• permanent ABS/DSC system errors indicating damage to the hydraulic-electronic part,
• problems with maintaining pressure in the brake circuits when ABS is activated,
• stability control system failure messages for F20–F31 models with N13B16A engine.

Using the original pump from the same design family makes it easier to restore the full functionality of the system without having to modify the installation.

Other BMW ABS DSC pumps and knowledge of used parts

If you are looking for other ABS DSC pumps for BMW from the same category, check the available models in our ABS DSC pumps for BMW section, where you will find a wide selection of modules adapted to various series and engine versions.

When selecting aftermarket parts, it's important to understand the specifics of used body and mechanical components. To optimize the use of salvage parts, the blog article "Replacing Body Parts with Used Ones – Can Salvage Body Parts Look Like New?" will be helpful. It discusses the practical aspects of purchasing used components for brands like BMW.