Standard Ignition RU-882 HVAC Blower Motor Resistor

Reliable HVAC Blower Motor Resistor for Mercedes-Benz Models

The Standard Ignition RU-882 HVAC blower motor resistor is designed to restore proper blower motor function in select Mercedes-Benz vehicles. Engineered for compatibility with models such as the SLC43 AMG, SLC300, SLK55 AMG, SLK250, SLK300, and SLK350, this resistor ensures consistent climate control performance.

• Attachment method: Screw for secure installation
• Female rectangular connector with 3 cavities
• Supports 3-5 speed blower motor operation
• Includes hardware for mounting
• 8 male blade terminals for reliable electrical connection
• No wiring harness or mounting brackets included

Product Details and Specifications

The RU-882 blower motor resistor from Standard Ignition is built to meet OEM standards for HVAC system components. It features a screw attachment method that allows for a firm and stable fit within the blower motor assembly. The resistor uses a female rectangular connector with three cavities, designed to interface with the vehicle’s wiring harness without included wires or harness extensions. This part supports blower motors with 3 to 5 speed settings, making it suitable for a range of HVAC configurations found in Mercedes-Benz SLC and SLK series vehicles. The resistor terminals are male blade type, totaling eight in quantity, ensuring a secure and efficient electrical connection. Hardware is included to facilitate installation, although mounting brackets are not part of the package.

Compatible Mercedes-Benz Models

This HVAC blower motor resistor is compatible with the following Mercedes-Benz models:

• SLC43 AMG
• SLC300
• SLK55 AMG
• SLK250
• SLK300
• SLK350

Common Applications and Issues Addressed

• Restores blower motor speed control in HVAC systems
• Resolves inconsistent or non-functioning blower speeds
• Fixes blower motor resistor failures causing no airflow or limited fan speeds
• Eliminates electrical connection issues related to worn terminals
• Improves climate control reliability in Mercedes-Benz SLC and SLK models

Installation Notes and Tips

Installation requires removal of the HVAC blower motor housing to access the resistor. The screw attachment method ensures a secure fit; use the included hardware for mounting. Verify connector orientation before installation to avoid damage to the female rectangular connector with three cavities. Since no wiring harness is included, ensure the vehicle’s existing wiring is intact and compatible. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The RU-882 blower motor resistor undergoes quality control testing to ensure proper fit and function in compatible Mercedes-Benz models. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.