BMW E90 E91 LCI E92 DSC ABS Hydro Braking Unit Pump 6790147 6790146

BMW E90 E91 LCI E92 DSC ABS Hydro Braking Unit Pump is an original component from the ABS and ESP system category, designed for advanced stability and braking force control in BMW 3 Series vehicles. This used module allows for a technically correct repair of the factory system, maintaining its operating characteristics and compatibility with the vehicle's electronics.

Specifications and technical data

• SKU: 6863356
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6790147 6790146
• Substitutable numbers: 34526790147, 34516790146, 6790147, 6790146, 34512460437, 2460437, 34516789308, 34516863356, 6789308, 6863356
• Category: ABS & Stability Hydraulic Units

Function and application in the BMW braking system

The presented braking unit integrated with the DSC/ABS block is responsible for precise pressure control in the brake circuits and cooperation with traction control and electronic stability control systems. This component is crucial for:

• maintaining vehicle stability during emergency braking,
• limiting wheel slip during starting and acceleration,
• coordinating the operation of the ABS system with the DSC system in various road conditions.

Thanks to the preservation of the factory hydraulic and electronic architecture, installing this pump in BMW E90, E91, and E92 series vehicles allows for the restoration of proper active safety system operation without interfering with the brake system design.

Benefits of using an original DSC ABS pump

Using an original BMW component in the area of ABS and DSC control provides a number of practical service and operational benefits:

• Factory compatibility – the module works with the electrical installation, wheel speed sensors, and the vehicle's ECU in accordance with the manufacturer's specifications.
• Stable operating parameters – the operating characteristics of the ABS and DSC system are maintained, without the need for software modifications beyond standard service adaptation.
• Possibility of matching by replacement numbers – a wide list of reference numbers makes it easy to select the correct variant for a specific BMW configuration.
• Reasonable cost-to-quality compromise – a used OEM component allows for reduced expenses while maintaining high manufacturing quality.

Condition, verification, and installation aspects

The pump comes from the ABS and ESP system category and is offered as a used part, which in practice means the possibility of an economical repair of the braking system while maintaining the original BMW specification. Before installation, a standard service procedure is recommended, including bleeding the brake system and computer diagnostics to adapt the module to the specific vehicle.

Due to the complex interaction with the vehicle's body electronics, installation in a specialized service center equipped with appropriate diagnostic software is recommended. This allows for proper module coding, clearing any potential errors, and verifying the correct operation of the ABS and DSC systems after replacement.

Part selection and expanding the scope of repair

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other elements from the same group, such as control modules, wheel speed sensors, or signal cables, check the available parts in the BMW ABS and ESP system category.

When selecting used safety system components, it is worth consciously comparing OEM solutions with aftermarket replacements. A guide discussing the cost and quality differences between new and used car parts may be helpful – you can find it in the article New or used? A comparison of costs and quality of car parts, which facilitates making a rational service decision.

Substantive support and operation

A functional ABS and DSC system works with other vehicle systems, including the drivetrain and components responsible for stability and component cooling. In the context of overall vehicle maintenance, it is also worth taking care of the correct engine operating temperature – you will find more practical tips in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which shows how to optimally operate used components in daily driving.