Dorman 306-036 Secondary Air Injection Pump

Overview of the Dorman Secondary Air Injection Pump

The Dorman 306-036 secondary air injection pump is designed to support emission control systems in select BMW models. This pump helps reduce harmful emissions by injecting air into the exhaust stream during cold starts, ensuring compliance with environmental standards.

• Compatible with BMW 325Ci, 325i, 325xi, 330Ci, 330i, 330xi, 525i, 530i, 545i, 645Ci, M5, M6, X3, and X5 models
• Includes one secondary air injection pump per package
• No pulley included, designed to work with existing vehicle components
• Mounting hardware not included, allowing use of original equipment fasteners

Product Details and Specifications

The Dorman 306-036 secondary air injection pump is engineered to meet the emission control requirements of various BMW vehicles. This pump operates by delivering additional air into the exhaust manifold during engine warm-up, which helps reduce hydrocarbon and carbon monoxide emissions. The unit is supplied without a pulley or mounting hardware, so it is intended for replacement where the original components remain serviceable. This design ensures compatibility with factory-installed parts and simplifies installation for professional technicians.

Compatible BMW Models and Applications

This secondary air injection pump is compatible with a range of BMW models, including the 3 Series variants such as 325Ci, 325i, 325xi, 330Ci, 330i, and 330xi. It also fits select 5 Series models like the 525i, 530i, and 545i, as well as the 6 Series 645Ci, performance models M5 and M6, and SUVs X3 and X5. Using the correct part number 306-036 ensures proper fitment and function within these vehicles' emission control systems.

Common Issues Addressed by the Secondary Air Injection Pump

• Engine warning lights related to emission control system faults
• Failed emissions tests due to insufficient air injection
• Rough engine idle or hesitation during cold starts
• Increased exhaust emissions during engine warm-up
• Unusual noises from the air injection pump area

Installation Notes and Tips

When installing the Dorman 306-036 secondary air injection pump, verify that the existing pulley and mounting hardware are in good condition and compatible. Since these components are not included, reusing original parts is necessary. Ensure all electrical connections and vacuum lines are properly secured to maintain system integrity. Professional installation is recommended to confirm correct operation and avoid emission system faults.

Quality Assurance and Warranty Information

Dorman manufactures this secondary air injection pump to meet or exceed OEM standards for fit, form, and function. The part number 306-036 undergoes quality checks to ensure reliable performance in BMW emission control systems. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or region.