Karlyn 30234 Mass Air Flow Sensor

BMW Mass Air Flow Sensor

The Karlyn Bremi 30234 mass air flow sensor is a direct-fit emission control sensor for select BMW performance models. It is built for vehicles that rely on accurate airflow measurement to support proper fuel delivery and engine management.

Key Features

• Mass air flow sensor for emission control and engine management
• Karlyn Bremi product line
• Direct-fit application for select BMW M and Z models
• Part number 30234 for catalog and service reference
• Compatible with BMW M5, M6, Z4, M3, and Z3 applications listed below

Detailed Description

Karlyn Bremi 30234 is a mass air flow sensor used to measure incoming air so the engine control system can calculate fuel delivery more accurately. This part is listed for 2006-2010 BMW M5, 2006-2010 BMW M6, 2006-2008 BMW Z4, 2001-2006 BMW M3, and 2001-2002 BMW Z3. The Bremi line identifies the specific product family within Karlyn’s catalog for BMW emission control sensors. If you are sourcing a BMW MAF sensor for a BMW M5, BMW M6, or BMW M3, part number 30234 is the reference to use.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Check engine light related to mass air flow sensor faults
• Poor throttle response from incorrect air metering
• Fuel trim issues tied to incorrect intake air measurement
• Driveability problems on BMW M5, M6, Z4, M3, and Z3 models

Installation Notes and Tips

Verify the vehicle year, model, and engine application against the fitment list before ordering. Inspect the intake tract, air filter housing, and electrical connector for contamination or damage before installing the new sensor. After installation, clear diagnostic trouble codes and confirm stable idle and airflow readings with a scan tool.

Quality Assurance

Karlyn Bremi 30234 is cataloged as an OE-style emission control sensor for the listed BMW applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.