BMW E81 E87 LCI E90 LCI ABS DSC Module Pump Hydro Unit 6787836 6787837

BMW E81 E87 E90 LCI Brake Master Cylinder DSC 6787836 is a component from the ABS and ESP System category, designed for BMW vehicles with the DSC dynamic stability control system. This is a solution for drivers and workshops that need a tested, used brake master cylinder ensuring proper cooperation with the vehicle's factory safety system. By adhering to OEM specifications, the part allows for precise restoration of the braking system's original operating parameters.

Specifications and technical data

• SKU: 6787836
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6787837 6787836
• Substitutable numbers: 34516863354, 6863354, 34516795171, 6795171, 34516789306, 6789306, 6787837, 34516788520, 6788520, 6787836
• Category: ABS & Stability Hydraulic Units

Purpose and Role in the ABS/DSC System

The presented DSC brake master cylinder is a system component responsible for generating and modulating pressure in the brake circuits, working in conjunction with the ABS and stability control system. In BMW E81, E87, and E90 LCI series vehicles, it is responsible for:

• maintaining adequate working pressure in the braking system,
• cooperating with the ABS/DSC control module in regulating braking force,
• stabilizing the vehicle's trajectory during sudden braking or loss of traction.

Thanks to its construction conforming to factory BMW standards, the cylinder maintains proper operating characteristics, which translates to consistent operation of safety systems and predictable vehicle behavior on the road.

Benefits of Using an Original BMW DSC Cylinder

Using an original BMW OE component in the ABS and ESP system helps reduce the risk of compatibility issues and communication errors with the vehicle's electronics. Key advantages include:

• Factory fit for the hydraulic and electrical installation in BMW E81, E87, E90 LCI models.
• Proper cooperation with wheel speed sensors and the DSC module, without the need for installation modifications.
• Restoration of original braking parameters, which is particularly important in vehicles equipped with advanced stability control systems.

For workshops, this means shorter installation times and a reduced risk of needing to re-intervene in the system, and for the user – stable operation of the ABS and ESP system after component replacement.

Selection and Compatibility by OEM Numbers

The DSC brake master cylinder has a dedicated OEM part number and associated replacement numbers, which facilitates precise identification and selection for a specific vehicle configuration. When purchasing, it is advisable to:

• compare the part number from the removed component with the OEM number of this cylinder,
• check compatibility with the list of replacement numbers in the technical specification,
• consider the body generation (E81, E87, E90 LCI) and the DSC system used.

This approach minimizes the risk of incompatibility and ensures proper cooperation with the braking system electronics. If in doubt, it is advisable to use the VIN number or consult a service specializing in the BMW brand.

Used Condition and Practical Installation Tips

The component is offered in used condition, representing a reasonable compromise between cost and adherence to OEM specifications. Before installation, it is recommended to:

• thoroughly bleed the braking system after installing the cylinder,
• perform adaptations/service procedures intended for the DSC system in the specific model,
• check the tightness of hydraulic connections and the correctness of electrical connector connections.

A correctly installed DSC brake master cylinder allows for the restoration of stable ABS and ESP system operation, which directly impacts driving safety in everyday and emergency road situations.

Other Products and Auxiliary Materials

If you are also looking for other components from the ABS and ESP System category dedicated to this brand, check out our offer at BMW ABS and ESP System, where you will find a wide selection of components tailored to various models.

When planning major repairs to the powertrain and braking system, it is worth expanding your knowledge about the interaction of individual components. The guide article Clutch and Dual-Mass Flywheel – Diagnostics and Part Selection for the Powertrain may be helpful, as it discusses the relationships between drivetrain components and facilitates a comprehensive approach to vehicle servicing.

If you want to better prepare for purchasing used parts, check out the guide Safe Online Purchase of Used Car Parts – Step-by-Step Guide, where you will find practical tips on verifying parts, selecting by OEM numbers, and cooperating with workshops.