Dorman 601-185 High Intensity Discharge (HID) Lighting Ballast

Reliable HID Lighting Ballast for BMW 5 Series Models

The Dorman 601-185 High Intensity Discharge (HID) Lighting Ballast is designed to restore proper function to the exterior lighting system of select BMW vehicles. Engineered with a durable aluminum body and precise dimensions, this ballast ensures consistent performance for your BMW 525i, 525xi, 528i, 530i, 540i, and M5 models.

• Complete control module electronic component replacement
• Durable silver aluminum body measuring 3.55" length, 3.03" width, and 1.22" thickness
• Blade terminal type with 2 terminals and 2 connectors for secure connections
• Compatible with BMW 525i, 525xi, 528i, 530i, 540i, and M5 models
• Part number 601-185 ensures exact fit and function

Product Details and Specifications

This Dorman HID lighting ballast features a robust aluminum housing finished in silver, providing both heat dissipation and corrosion resistance. The unit includes two blade terminals and two connectors, designed for direct replacement without the need for additional wiring harnesses or installation hardware. Measuring 3.55 inches in length, 3.03 inches in width, and 1.22 inches in thickness, the ballast fits precisely within the lighting assembly of compatible BMW 5 Series vehicles. As a complete control module replacement, it manages the electrical current to the HID bulbs, ensuring stable and efficient lighting performance.

Compatible BMW Models and Applications

• BMW 525i (various model years)
• BMW 525xi
• BMW 528i
• BMW 530i
• BMW 540i
• BMW M5

This ballast is specifically designed for these BMW models, making it a suitable replacement part for restoring HID lighting functionality.

Common Issues Addressed by This HID Ballast

• Flickering or intermittent headlight operation
• Headlights failing to turn on
• Reduced brightness or inconsistent light output
• Electrical faults related to ballast failure
• Warning lights on the dashboard indicating lighting system errors

Installation Notes and Tips

Installation of the Dorman 601-185 HID lighting ballast requires basic automotive electrical knowledge. The unit does not include wiring harnesses or installation hardware, so ensure existing connectors and terminals are in good condition before installation. Disconnect the vehicle battery before beginning work to prevent electrical shorts. Carefully remove the old ballast and connect the new unit using the blade terminals and connectors provided. Verify secure connections and test the headlights before reassembling the vehicle components.

Quality Assurance and Warranty Information

Dorman manufactures this HID lighting ballast to meet or exceed OEM standards for fit and function. The aluminum body construction provides durability and resistance to environmental factors. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to the product packaging or Dorman’s official documentation for exact warranty terms.