BMW 3 Series E90 E92 E93 LCI M3 Secondary Air Emission Control Pump 7838313

The BMW E90 E92 E93 LCI M3 Secondary Air Pump is an original part of the air supply system, designed for use in sport versions of the facelifted BMW 3 Series. The pump supports the correct operation of the engine during cold start, which translates to more stable engine performance and more predictable exhaust emission parameters.

Specifications and technical data

• SKU: 7838313
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7838313
• Substitutable numbers: 7838313, 11727838313
• Category: A/C Compressors & Clutches

Application of the Secondary Air Pump in BMW E90 E92 E93 LCI M3

The BMW secondary air pump is responsible for supplying additional air to the exhaust system during the initial phase of engine operation. This allows the catalytic converters to reach operating temperature faster, and the exhaust gas mixture is burned more effectively. In practice, this means:

• more efficient heating of the exhaust system after starting the engine,
• more stable cold engine operation,
• reduction of harmful exhaust emissions during the critical start-up phase.

In M3 models of the E90, E92, and E93 series after the facelift, a properly functioning secondary air pump is an essential element for maintaining factory engine operating parameters and compliance with environmental requirements.

Characteristics and Benefits of Installation

The offered secondary air pump for BMW M3 E90/E92/E93 LCI is a used part, an OEM-class component designed to work with the factory engine control. Using an original component ensures:

• precise fit to factory mounts and air ducting,
• compatibility with the factory electrical system and engine control unit software,
• maintenance of stock engine performance parameters without the need for modifications.

Choosing a used OEM part is a sensible solution for users who want to restore the full functionality of the secondary air system while controlling service costs for high-performance vehicles like the M3.

Condition, Origin, and Technical Aspects

The pump offered in this listing is a used part, originating from original BMW equipment. These types of components are designed to operate in demanding thermal and mechanical conditions, so with proper installation and a functional control system, they can still ensure the correct operation of the secondary air system.

Before installation, it is recommended to:

• verify the tightness of the air hoses and valves cooperating with the pump,
• check the electrical system for correct power supply and control,
• perform computer diagnostics to confirm the absence of errors related to the secondary air system.

This approach allows for full utilization of the offered component's potential and reduces the risk of errors reappearing in the engine control unit.

BMW Air Conditioning Compressors and Clutches – Part Selection

If you are looking for other parts in the BMW Air Conditioning Compressors and Clutches category, visit our dedicated subpage where you will find a wide selection of components tailored to various models of this brand: BMW Air Conditioning Compressors and Clutches.

Used Premium Components – How to Sensibly Reduce Costs

Choosing used OEM parts, such as secondary air pumps, air conditioning compressors, or control modules, is an effective way to keep a premium car in good condition without excessively burdening your budget. You can read more about the advantages of using original parts from dismantling in premium segment cars in the article: Used Mercedes Parts – Original Parts from Dismantling.

If you want to better plan your car's service and learn about the most frequently replaced parts, also check out the guide: TOP 10 Most Frequently Replaced Parts in Your Car, which will help you make informed decisions about vehicle operation and spare part selection.